A
CO0N T ENT S
Page
INTRODUCTION..................................................... 3
BACKGROUND..................................................... 3
RATIONALE........................................................ 3
STRATEGY FOR ACHIEVING PROJECT PURPOSE.......................... 4
SUMMARY OF PRESENT SITUATION, PROSPECTS, CONSTRAINTS
AND RECOMMENDATIONS FOR REMOVAL OF CONSTRAINTS FOR
BRACKISHWATER AQUACULTURE DEVELOPMENT IN
NORTHERN SUMATRA.............................................. 4
PROJECT ACCOMPLISHMENTS........................................ 6
Fry Resources ........................................... 6
Fertilizer Utilization...................................... 7
Credit ................................................. S8
Provincial Fisheries Demonstration Units..................... 8
Training ............................................... 10
Production............................................. 10
Fish Farmer Associations .................................. 11
Area Expansion......................................... 11
Emp loyment ........................................... 13
Field Trial Station ....................................... 14
Marketing ............................................. 14
Shrimp Hatchery........................................ 14
Pumping Systems .... I................................... 14
PROJECT REPORTS, REVIEWS, AND PUBLICATIONS..................... 15
PUBLISHED 11/82-IM
Information contained herein is available to all without
regard to race, color, sex, or national origin.
COVER PHOTO. Fish
1
harvest from demonstration pond.
The Indonesia
Brackishwater Aquaculture
Production Project
Completion Report
BRYAN L. 
DUNCAN
1
INTRODUCTION
T HIS REPORT presents the background, strategy, 
accom-
plishments, and remaining constraints of the Brackishwater 
Fish-
ery Production Project (BFPP) of the Government of Indonesia
(GOI).
The project purpose was to increase brackishwater pond 
(tam-
bak) production in the provinces of Aceh and North Sumatra, and 
to
create an organizational base upon which tambak area expansion
can take place.
BACKGROUND
Brackishwater aquaculture in Indonesia is conducted in 
ap-
proximately 180,000 hectares of tambaks (ponds) constructed 
in
mangrove forest associations and other lands located 
within the
tidal-influenced coastal zone. These tidal lands in Indonesia 
are
variously estimated to total 5 to 7 million hectares in area. This land
is generally unsuited for agriculture and is exploited 
mainly for its
timber and used for fishpond production. The area of tidal swamps
in Aceh Province is estimated to be 75,000 hectares and 
in North
Sumatra Province 50,000 hectares. At the beginning of the project
in 1976 Aceh had an estimated 16,000 hectares of tambak, 
and
North Sumatra 300 hectares. At project completion in 1981 Aceh
had an estimated 24,000 hectares, and North Sumatra 400
hectares.
In 1974 the Directorate General of Fisheries (DGF) prepared 
a
document entitled "Background Information and Project Idea 
for
Brackishwater Pond (sic) in Aceh and North Sumatra," and asked
AID assistance in its evaluation. USAID obtained the services 
of
Dr. H.R. Schmittou, at that time technical advisor for 
a similar
USAID/Auburn University project in the Philippines. Dr. 
Schmit-
tou's recommendations were positive, and in June 1975, USAID
contracted a team of consultants from Auburn University to 
assist
USAID and the GOI with the project design. Auburn 
University
was subsequently awarded a 2-year contract to provide 
technical
assistance and commodities. Two technical advisors began 
lan-
guage training in July 1976, and arrived in Indonesia to begin 
their
work on October 26, 1976. One advisor (Dr. Michael C. 
Cremer)
was assigned to the Aceh Provincial Fisheries Service 
and one
advisor (Dr. Bryan L. Duncan) to the North Sumatra Provincial
Fisheries Service.
In September 1978, technical assistance in Aceh Province 
was
terminated on schedule. The North Sumatra portion of the 
project
was extended an additional year. At the end of this extension 
an
additional 2 years were requested by the GOI, and approved 
by
USAID, to assist with area expansion (extensification).
'Associate Professor, Department of Fisheries and Allied Aquacultures
and International Center for Aquaculture.
The duration of technical assistance to the project was 4 years and
10 months, with USAID grant assistance of approximately
$900,000 and an equivalent amount of GOI counterpart funding.
RATIONALE
Project goals as envisioned by the GOI were expanded employ-
ment, increased food production, increased income, increased
fishery exports, equitable distribution of development benefits,
appropriate adjustments in sectoral occupations, and solutions to
other socio-economic problems.
In the province of Aceh the GOI target group was the traditional,
small-scale tambak farmer, who, through lack of accessibility 
to
newer technology and management methods, achieved production
levels which were only a fraction of what was possible at 
an
appropriate level of intensification.
In North Sumatra, the GOI target group was the traditional,
underemployed coastal fishermen who numbered approximately
55,000 on the east coast of North Sumatra and for whom conversion
to coastal fish farming was viewed as desirable. Justification 
for this
can be found in the quote below:
"Virtually all the resources of the Malacca Strait are at
least moderately heavily fished and increasing fishing
either by increasing the number of fishermen, or by
improving the efficiency of those now present, will
increase the total catch considerably less than in pro-
portion to ths increase in effort, and for several stocks
there may be little or no increase at all. For all stocks,
any substantial increase in fishing will result in a
significant drop in the catches of the fishermen already
exploiting that stock. The workshop, therefore, be-
lieved that any positive measures to increase further
the fishing intensity in the Straits of Malacca, except
on those few stocks for which the opportunities for
development have been clearly demonstrated (for
example: further trawling surveys may show this to be
the case in the deeper water of the northwestern
approaches to the Strait), would be very undesirable"
(UNFAO/UNDP Report of the Workshop on the
Fishery Resources of the Malacca Strait - Parts I and
II. March 29 - April 2, 1976, Jakarta).
Increasing competition for increasingly scarce resources 
re-
sulted in social conflicts between the traditional fishermen 
and
small trawlers (15 to 30 GT) which illegally encroached 
upon
traditional fishing grounds within the 6-mile coastal zone 
reserved
for small-scale fishermen.
Trawler operations surrounding the island of Sumatra 
were
banned as of January 1, 1981, by Presidential Decree number 
39, to
reduce the fishing pressure on depleted fish stocks 
and eliminate
social conflicts resulting from trawler operation. The 
immediate
result of the ban was a significantly reduced fish and shrimp catch.
Prices of fish and shrimp in the local market increased considerably
and jobs in the labor-intensive shrimp processing sector were lost.
In the long run there is reason to believe the trawling ban may be
effective in restoring depleted fish stocks. A trawling ban in the
Philippines proved to be a suitable tool in tropical waters to allow
heavily exploited fish stocks to recover ("Do trawling bans work in
tropical waters?", ICLARM Newsletter Vol. 4, No. 1, January
1981).
Increased assistance for the development of tambaks with
emphasis on shrimp production has been initiated by the GOI to
partially offset catch declines resulting from the trawler ban, and in
recognition of the steadily increasing fishing pressure in In-
donesian waters and the importance of shrimp in generating for-
eign exchange and improving the incomes of tambak farmers. A
country-wide shrimp hatchery development project is in early
stages of implementation. The GOI plans to renovate 100,000
hectares of existing brackishwater ponds to permit intensive
shrimp production, and to construct 31,000 hectares of new ponds.
The scope of the present project was restricted to development of a
pilot tambak area to serve as a model for a larger expansion effort.
The present project is also part of the GOI effort, for security and
political reasons, to create a coastal zone of relative stability and
prosperity.
An additional rationale of the present project was to increase fish
consumption, which at 11.2 kilograms per capita per annum
nationwide (16 kilograms for Sumatra) is far short of the 29.5
kilograms desired. "According to the National Food Conference
held in 1968, an Indonesian needs 55 grams of protein per day to
meet minimal nutritional requirements. Of this total 15 grams
would come from animal protein consisting of 10 grains from fish
and 5 grains from livestock. Ten grains of fish protein equals 60
grams of fish flesh per day (82 grams of whole fish per day), or 29.5
kilograms of whole fish per year." (The Development of Small Scale
Fisheries in Indonesia, by A. Sidarto, EKI, Vol. XXV, No. 1,
March 1977). While production of export quality shrimp generates
income, low-value (small size) shrimp and production of fish in
polyculture with shrimp for direct consumption by the fish farm
household and for sale on the local market contribute to increasing
per capita fish consumption.
A viable tambak industry will also provide off-farm employment
opportunities in the marketing, processing and supply sectors.
Many jobs were lost in this sector as a consequence of the trawler
ban, and it is envisioned that many of these jobs could be restored
by a viable tambak industry which now has high priority with the
GOI.
STRATEGY FOR ACHIEVING PROJECT PURPOSE
The strategy for increasing brackishwater pond production was
twofold: intensification of production in existing ponds in Aceh
province, and construction of new ponds (area expansion or "exten-
sification") in North Sumatra province. The former was achieved by
introducing improved technology which has been successful in the
Philippines and which had received limited testing in Indonesia.
This improved technology includes fertilization, managed stock-
ing, use of pesticides, minimization of fry losses during handling,
and physical.improvement of the tainbak.
The means of delivering this newer technology was provided
through training of government technicians and extension workers,
and the construction of strategically located government demon-
stration stations. Financing for tambak owners for construction and
operational costs was through a subsidized credit program. General
technical assistance was provided by resident foreign advisors and
short-term consultants who addressed specific problems.
SUMMARY OF PRESENT SITUATION, PROSPECTS,
CONSTRAINTS AND RECOMMENDATIONS FOR
REMOVAL OF CONSTRAINTS FOR
BRACKISHWATER AQUACULTURE
DEVELOPMENT IN NORTHERN
SUMATRA
A. Present Situation
1. Rationale for tambak fisheries development.
a. Coastal fishermen are poor with limited oppor-
tunity for alternative employment. Income is low and
fluctuates drastically with the season.
b. East coast waters are fished at or near maximum
sustainable yield, indicating limited potential for ex-
pansion of capture fisheries. This situation may im-
prove as a result of the trawler ban of 1980.
c. Government ban on trawler operations is drasti-
cally reducing shrimp production with consequent
reductions in foreign exchange earnings and employ-
ment (trawler crews, marketing, and processing sec-
tors). Because of this GOI has increased assistance to
tambak development.
d. GOl desires a coastal zone with social stability and
relative prosperity for political security concerns.
e. Per capita fish consumption in project area is
considerably below desirable levels.
f. There appears to be considerable production po-
tential in intensification of existing ponds and area
expansion.
2. Accomplishments of present brackishwater production
project.
a. Establishment of eight government aquaculture
demonstration, training, and production facilities.
b. Production increases of more than 100 percent.
c. Administrative experience within the fisheries
services for brackishwater aquaculture development.
d. Formal training and on-the-job experience for
project technical staff.
e. Creation of awareness and interest in the public
sector and government agencies in brackishwater
aquaculture development.
f. Training for fish farmers and those interested in
participating in tambak area expansion activities.
g. Surveys of tidal swamplands and identification of
sites with potential for tambak development.
h. Construction of a 68-hectare area expansion pilot
project.
i. Shrimp and 
milkfish culture 
yield trials 
demon-
strating economically sound productions.
j. Field trial station designed, site selected, and
funding provided.
k. GOIparticipationintheprojectatdistrict, provin-
cial, and national levels.
B. Prospects for brackishwater aquaculture develop-
ment in northern Sumatra (Provinces of Aceh and
North Sumatra)
1. Tidal swamp land available for possible area expansion is
estimated to be 100,000 hectares.
2. Area of intensification of production is about 24,000
hectares.
3. World and local shrimp demand, and local fish demand
are increasing while production from capture fisheries has
declined.
4. Milkfish culture technology is well-established and high
productions are possible, as demonstrated by project.
5. Shrimp culture technology is sufficiently well-
established for acceptable, economic productions from semi-
intensive operations, as demonstrated by project.
6. A high degree of interest among coastal villagers.
7. A high degree of interest by the provincial governments.
8. A high degree of interest and commitment by GOI as
evidenced by present plans for country wide intensification
(100,000 hectares) and expansion (31,000 hectares) of brack-
ishwater aquaculture.
C. Constraints
1. Insufficient skilled and experienced manpower.
2. Inadequate budget support to attain project objectives.
3. Insufficient shrimp post-larvae.
4. Inadequate knowledge of potential area for expansion.
5. Weak milkfish marketing structure.
6. Socio-economic baseline data lacking.
7. Fry distribution and fingerling production facilities lack-
ing.
8. Inexperienced pond constructioni contractors.
D. Recommendations for Removal of Existing Con-
straints
1. Present manpower should be increased in number, and
the skills that they possess upgraded. It is expected that
solving the manpower problem will contribute towards re-
moval of other constraints. It is proposed that the provincial
level brackishwater aquaculture development unit establish
teams that work together closely under the leadership of a
GOI fulltime project manager/team coordinator. One of the
below team leaders will also function as counterpart to the
GOI project manager/team coordinator, and chief-of-party of
the technical advisors. It is assumed that the team leaders
described below will be expatriots, as the required skills will
probably not be available within the country.
a. Engineering team
This team will consist of a qualified pond engineer-
ing expert as team leader assisted by two or three
individuals with engineering/technical training. The
engineering team will be responsible for field surveys,
identification of potential tambak sites, site evaluation
(soil, topography, tide, etc.), physical design of tam-
bak projects and government brackishwater aqua-
culture facilities, participation in contractor selection,
and direct on-site supervision of all construction ac-
tivities. The team must have at its disposal facilities
and e juipment to perform its work.
b. - ambak management team
This team will consist of a team leader who is
academically qualified (research experience) and ex-
perienced in practical field work. He will be assisted
by two or three individuals with strong aquaculture
backgrounds. The tambak management team will be
responsible for working with PFDU (Provincial Fish-
eries Demonstration Unit) field staff to design overall
management and production schemes for area expan-
sion projects; plan, implement and monitor PFDU
production, demonstration, and extension activities;
for'fry and shrimp post-larvae distribution; for finger-
ling production; and direct responsibility for the oper-
ation of the field trial facility. This team will be fully
equipped to perform its functions.
c. Socio-economic team
This team will consist of a qualified agricultural/
aquacultural economist as team leader, preferably
He will be assisted by individuals with backgrounds
appropriate to the tasks to be performed. This team
will be responsible for: obtaining baseline 
socio-
economic information in communities where tambak
expansion activities are to be undertaken; performing
economic analysis to be incorporated into plans for
specific tambak area expansion efforts; assisting the
bank in designing an appropriate credit scheme and
monitoring its implementation; assisting tambak
farmer cooperatives/associations in matters-relating to
their organization and function; and overall monitor-
ing of economic and social performance of tambak area
expansion.
2. A shrimp hatchery for northern Sumatra should be
planned and developed as soon as possible to meet the
demand for post-larvae and permit future tambak expansion.
This should include long-term training of hatchery staff
which will be essential to the operation of the hatchery.
3. It is recommended that a milkfish fry distribution and
fingerling production center be constructed and operated by
the fisheries service to support early stages of tambak area
expansion and intensification, and to serve as a demon-
stration to encourage the private sector to take over this
function.
4. Off-shore training for fisheries officials to the M.Sc.
level is an essential part of a follow-on brackishwater aqua-
culture project. This must include support for intensive
English language preparation. The contention that trainees
should not train in countries with conditions or charac-
teristics dissimilar to their native country is irrelevant to the
trainees' needs, which are to gain the attitudes, technical
information and problem-solving skills in their respective
disciplines that will enable them to perform creatively and
effectively in any environment. It is then highly desirable
that the trainees undergo their training at appropriate insti-
tutions in the United States or other countries with equiv-
alent educational standards, irrespective of similarities or
dissimilarities with specific problems they will face upon
returning home.
5. Improvement of construction methods is essential so
that serviceable ponds are built and construction costs are
lowered. Indonesian contractors and tambak farmers co-
operatives or associations could be assisted by "master tam-
bak builders" from the Philippines or Taiwan to demonstrate
construction techniques and assist in supervising specific
construction projects.
6. The implementation of the above recommendations can
best be achieved by continued cooperation between GOI
and USAID in a follow-on project. The preparation of a
detailed project proposal should begin as soon as possible to
minimize lag between termination of the present project and
start-up of the proposed 
project.
a. Duration of proposed follow-on project - 5 years.
b. Budget estimates of major items for dollar fund-
ing.
1. Engineer, 60 man-months ..... $US 400,000
2. Biologist, 60 man-months ..... 400,000
3. Economist/sociologist, 60 man-
m onths ................. ........ . 400,000
4. Commodities (vehicles, scientific
and engineering equipment, etc.) .. 200,000
5. Off-shore training, 96 man-
months ......................... .. 96,000
6. Other consultants, 24 man-
months ......................... .. 96,000
Total $US 1,592,000
with soe expeience nd knowedge o coopeatives
PROJECT ACCOMPLISHMENTS
Nit inc hjcc(tix tx \xt c tsta biilIhled tot t I ic iitialI :3-\ cartI nlijct
period.1 'I'lite ol)]tttixe txxxrt lat gti .itllicX td. St(' it x 
tillic
tixc tx xci t ortitilatttI iw thw final 2 x tai etei~on lot- Nothd
life of' tlit lptiittt. I lit illitial oiijetiix txexr,"
I .1 Mlkfixi i- rx tottttt tx altiatttI and itiltixme tIaptiuie t il
:3. lIntrtaxed (tidinv b\ CO( I Baink Ihakxat tot fish p)oiit pro-
4. Pio\ incial p)itgrtins deontr~tations. ttaiiiiiig, andl etenstxion
tniati ojitittil Xxitl technict.al assistante.
5. Triainied staffl tittioii \\ itli tttiioilogx zaod iiitltltlogX Iho
jottoxificatioti otititfic pi ogri am.
6. Aimal fishi prodti~ni fi-olti 4,S0l)( Ictaiiex of (\ixtimit taiilik>k
dotll~dl toto) applno\iloattlx 50t0 Liltigtaiii to 1,000t kilog~iuoox 
pt
htectaic tw i xar.
7. N\x tlpltx iilit crcat'tl fti agricturtoal anlir tifii iiiitt
local priotducer axxtttiationx.
9. (;( )1 iiiftaxtiutr il(l1 p 0lacc alti fitttitini1 to lianltfi I citlillo
Iinteo xiitat ion antI iioj etc expans ioni.
()hbix~ tx tot tiit finlal 2- x at cxtcixmti iii Noitli Siijiiatii 
%\ (I
I. 'I lf-t pttilot $)lqject tatlllilk xsttall liolltr txtattx totaliilg :3))0
lieCtal tx iiitci tlt~clopllt atnd 0111 pilot fproicct opeati 
a onal
2. T1otal credit of R3$). 19.5,000tt0001t to pilot ptroject pati tlt1
1
t
.3. Piatix fitializtt fot* tollxti itiitt of, a fitldti til statiott.
4. Matrketing studyl toi11
1
lettd xx tl reiotliliiiotdatiotx t'ot
iii\itm h iitarkttitig xittiatioti
5. Flhtxlilitx of p~iilpii. xx\ xtCeiXl tot tait1k \\ atcr ioaiagtioitt
c\ alttatttf.
G. sfiriiiip hatthl .\ f'e&axilltx xtilxk atid jilalix for tollox -)t
7. Itriliili.l" Ojot otlittititx fit ox itied tot I
t
l ojet itlagit"u to MI. S
Fry Resources
atli t ott linde t t hi bifii( er o11w~ w)
infix h ati catc inl ti x. ticlia tiot(ltll)]( tiit tpftoducx 
ti andit,
to bl p i hilil tit atd itlilt o Niix tlltr So titig 
att ro,'
aftiatit tf tli'ttt. a it ptin itlittit cotstad \Iilttxli fxctilit 
the
lolx itlilipitixoilittit\ Sti aoifir theitt lac of' mtii f i itig 
Not75
l'tiiialt iloaxaili \lttipailt an tw eiigiqilc& fii thix h xtxii lat 
t
ttre lt at it iItli r
Acch 1rovnc) 62.5 97,ad17Ssrcs \i 
otitol
N
Milkfish fry in Plastic bag (top), and shrimp post-larvae for pond
stocking (bottom).
X ol 'w it lt
127 00011
ro-quil elli n Sl ill JI t
clton97 ililitlfiti a$ti te gtiios x\as titiilxriltih due tolp l 
t fix
A xxirkliiip oii fix\ lindliiig aid ti itixpilttilig xxa ix ictttt 
ill
car Ploductioll
1978 121,000,000
1979 115,000,000
1 9 0 15 000 000
befow appiommatch 40 pci( colt moitalik
i.
I.
Milkfish fry packed for air shipment (left), and fry and post-larvae gear (right).
phliha lii\N xci e dllioiixtiatit This ilictliotl tiripledl tlic caiixN ill(,'
cafpatitN peII II it \ oIItI Ic of' \\ atci amd Ix wirc applIictdre I we1(1d
illol taliticx floits 0 a iii' a 10 fpcilccit lixilig tradlitionali ilicthotlx to
1-2 pci-cet.
Ilo 1978 at cenltral fix' mar ket xxix establlshed il Bianda~ Accli, anid
sill( of' surpflusx fix to jax at \\it axiiade foiri ti xlt Ito lix x\ \crc
paickedI uixiigIlthefplastic bigox gcl loctliti din
1 
xliijpcd( b\ air to
lax a. Salex ms inc-axcd di aTiatic.alix, ,aclI) x ar. A toiitiniiiiii pr~i (1
is h uIlioji ailaliilitx of flix duii the 61 (oi off xiaxonl iiioiitli ol tlic
\car. flici is tli i aict l til fix baniks oxl oi- a fiogii lit( prodic-
tiotlj xttillijiltljlxtix 'Ilo( tccliologx Iw this is axvailalec
.Il\x ciilcx of xcx cial colliliO 1(1)1 xpecicx of 'In imp xxiii fouind ill
tlic coul xc of, xsi- x\ Sx. Ih 1o Ot ablidaiit x)CCICx xxCi C tlW xx liitC
xhli iif Pcnaioi o iniiicux aiid 1'. iniIO c isis \\i~ xx ijtl ar c tiltrii b\Ifi
Aiclx farmersi f'(i the loical ioarkct aind 'or cx~pior V I'iioiioii is ixo
taiobakx. Shrioip paxxixc (lxcitci. poinds ill ciiiiircial ijoaiititiix
xxhii xxatcrisf atdded. \ctix c xtiitkiii is tgciii afix not piactoicti.
ShInli 1101 )ixix el ntering. catchiiig" pilltf iiia\ lie xeco cdl
!iiixxcx c andl Ilc dexired sfeciex a11( liiiliii ()i xloillip xSib-
xci oco t xtocke tinto (i gi xwit fpinids.
Northi Sumatra P~rovince: Sui xcxx to idlciitifx jtox clc xlii imp
ii i iiic xxxcic ciiii iic dal ing h cxtcixitfr~in o I976 to 1 978.
T'lic pric ficc i ~ coilioci cial xpccicx Pciioi'ii x inliuox P. iiii
(gilicni xi 1'. iiiiiiidiiii and AIci'oai'iioci x p. xxiax ciolii iid, Ilot not
iii coiiiiiici-cial jIliantitcxs ficxiiit ill Aceli Siii x cx xxx ci c conditictcd
xpiiiadicallx axs fiiiiding xNit ax xiablc toi idcvitifx 1'. ooiiidoii cu
1
-
Jccting grioiundx Thix xspcciex xx'ax tlic fociix ill 'Niirthi 'uiiitia
liccauxc iif ftx cw'cclit gi iixxtl al( iid xor ix ill ill polllx itx highj
iiiarlct Iciiiand anl thc iaxc ofiif d idciitificatiiii b\x ciillcctiii at tlic
polit -lai xal and im cilc xtagcx. Ef~tsi txoi collect thix xliriliil
ifiaiititx ilming4 thic eaxt ciiaxt xxdc iiiit xmcccxxfiif Ili 195(1 iii x ix\
tii loicate f). iloldl poiit lai xac xx\ax litgtiiiiioi li xxe \\xt ciiixt 
if,
Niiith Siiiiatra. li Api il 1981 at 2 tax xiii xcx ill an ixolatcd airca
Piilau Paiic. 'apanuhli loahl x icldcd albouit 1 .t00 J). iiioidioi
piixt-lai\ xit amnd ix\ ciilcx 5 (lax x iii M\Ia x iildcil 6000,ft antI 6 (lax
ill Iloc fcdcd 6t) )1)1. 1ls h icxc acOl c iiiioci al (jiaiititicx, i01(1
tfliiitx xxii ii imli.d tioi ol nli coullectors x iiii ix t lii ii xx il
xioicc. It xx\its cicirlx r-icixeijdu liiixxcxci1 thait 'xJpliitatiiiii of
matiiiial rcxmoccx is at xtiip-gi) iiicaxic ilxeol iii l xihitiiiltiil
priigrelxx ill iiitcixifict iiii nl e\)xpoiiii iif taimmlikx xxill ulipciitl
ii))iii hlitchci\ x )pliictiiiii iif xhri nip p)iit liit a
Fertilizer Utilization
l mix liia at f ii iigu i clisiicaiitix x a o Ipii i mrd~ikili i gil it
fci tilizci ax alic to fixh fai iiCix ior llp 120) lii kilogiiiii iii
uil itii gul la i xioiit 9ix (oiis ier \a lii ihpu.Iix. iit
Auigiist 197.5 tlic to COI1 puli. Ili Octuobei 1976, COI )l milicx
uirca indtl ip ifl ipifhi pliiipllate xxci ctilulixlicd at lip. 7t per
kiluogiam and tliami i ioii pliiiph at at lip. 911)(,m ki lmiigi ii
xtutamtiallx hicliixx tht gumil if lip. 1201) pii kiluigi oiil lPi cxciilx
huho gimiic. fcmtiliztm ix 
1
lcntifiil oild ril tix a ulalc ii tluc liallct.
As ut 'Scptcolic 197S, 1,0 .tttoi 2,t00t0 tiis xx trc iixcu amolilialx lix
Accu famnucrxs xilipixxiiig liii )riicct guitIl if 90t0 tollsx fiii boith
priii mitc. sugmuulficaut ufliititlix iif imiiirgimiit f'Citili/ci ii( iiit xit
blmi ed iix llii Niiithi Siimtia
imporiltaint ini umliiitiiug julimli fttihitx As oxif xlutpiildim 
t978,
abulit I I.S(11 tol iixif tiixx iiiii x i iitIli, \r uiimm aluiilkl ill \uch uIn
'xiii 1 Simitim iuxe xxixs ritrictted lii gilx toi the lix ii limit cit illi-
iiiitiuitiiiii xtatmimxli Iliiiothi plmiilitix liixxixr ii u iugiiu fCi tilu'ui.
xx a iillii hr xii))flx cIiel xx hui a iluilc thii coxt itd tlfliiltx iif,
tirainxfioit is xol itiiiicx s Ili hibitix c- Thuxis olll \\x ill hlax)c tio hc
uddl-cxxcd axs fixhpn ~iilactix iticx iiiircasec
of 4 
"e, I * 
, . -L ,Awlp
Provincial Fisheries Demonstration Units
'I'll(, jptrli'it (Icsxtgtl \\its ilaxll 111)00 the axxtilt o jilt that ct ((it
mttttt. Tie (G( )l oI atcd to titoke ax ailIalble (It ip tlIic Iit(, of tIte
pro\( ciettx v. itlihea ti'ot ox (1 :3 midi 5 \ ('at at 15 pi-letcit ad
12 peia (itcst t'i'x ('xj)i (tix c ,'l xxth I \xcar p
1
iwe 1writod.
"Veh'I: Ft 011 ill Ii'ilIIlil. (It tf ' t h I ject tito 1i ( I I ilk 197, a, total
hid it 111i aX\ itiaiii' . 'p to awl( illiil(, Apil IS, 19"S1 a i total of'
timlili rat(' tot* tatttak ami defalult is 25 pctecttt Iioxi l\ et
\\t'Xli iitl i hak ofiiails t ~ci('le(l t~lit t~ll atoal ratie tllax hi'
Xli ax allitil t fit r ThX rti e aons litr ti'lli l(tt d~tti t ilte i otIt
xa'orpi'l Sumtratt:/i ''iirtxc jtit ilNhSilttlitXi t)li ('f crdit t 11
laplttte' elatat xi ins(1If caat 111ia e'paulhiill of Ijt.c Iticcit. 195(l
itidiiflte t pro 'hti itta l' kbanch es att am hese wtiti It t I
\1* il ecits lir"l laticl This litu5xato \itslilto be caetc due ptac 'tie
fat 1t lth h atk tt i al t XX I ( ,i e x pa nsioIII tiexx .tid 11111 (' l lt a
aboa eit .7 i0000tr as itllt d xt 1 7epa tlietit Itt )clol petlli
oxd t1 ~ticipint i ~nati lianioeild p xm ilotpoe t Illbn tiltil i
aci lilt t kipeit Hp 1211 111111 111111 xx illatii teojlitlitrs '[he (file
illliti ellxt icl etxI i ill ex lx fit prlitillx tith iliot1ald asilallxte
ax lalite b a that it \\ lIltd ti ill f\ilti('ii t o the xeiilli an t il I(' ~wi
Mrine sh~itIorim, l Peneu taon lef), cand milkfish. (ri)
Inerst Iic c o Woii~, Ascw w xaso ij
ijoim,12pricpnthuchls slwlt pal>e ot hihi
e :I ,Itidl til I i F t I Nllt'th \\ltlitt I. I le't lc' l~ x it aI I pe rft Iol I of
Ade'. axil tie ill
1 
Noth 1) u ilita. llxxcc Pt U t iltap e frt ax itt
poxt'iiatcllip 5 '(to l8ihectfate il1( \itt sittt i c ('h l x il x l' is i axal fx
Ilots (\ tl litl l'tt tid reit'ix (l Xolltk i'tl ('ell ad iin t tti ito or
1977 lsign t o II' Ith P D) L ati' lxtii\w r li t ti lli'lc. (;Ot t till i e
IMleitlil"t I' c itx lsolx ilit )orilg Ie 2 ealir. 197he fi)75 thatl
tlti'c 11,('L' l \tlt(( to o d c ciax d tests'a axxtxtat l oitatoi e p 575 1111xxa
2 646 tclloiti di x (f ttilitInne itntill 'i 1)1 xlxi, e\ 2 lix xxt xIiip
ft to c Ixtt xxI 'll tu" tit Ii(. pro d t ca t \l\ till tatlilik v (Iltii fit IX ei
xxil : ki lx tilc1t)ol ofl kitii xx oretx \llt 3 5 i'iA c asc li l l( i'tiit.'x
197 FThree) of i.lil F itlli teat)) x m ttti'i all Pia xi'x tt 1(1'
ai'tlx xxx ' f ( I lt \FlI opilt~ltilti l ttxxl ii' p d i tti i hi tf i t,10 il
2,64iii~itl' itiil ofli tiiin ax t thiiA'.T o \\r h
i'%'rc/ conuatra: Aotixim w 21ti, Illt 0xl t ic S xxxxlltllcti'iitt 10t55
'4,
r
Credit
,
- a
t q
~i I
* ~
N~
1111 cr XI lt) Olcrtl P C)X.Bba It I tlItIi (lt t hciX II~ wX I tXolm
hic t1( s\ IIX con(ItCIrIctCio in tXX() of tclit iI *liX-o ili/oSig
chlcttloiXofIc' UOIOrtilate thioC hiX k\ a9 pluircIalo 1) ltdo G- Mc
1.5;i \\X it- no Xlteti esIt is 1.).35 til tt tots PFM' w I\ 3Iticr
be)olIle~l atioa 091c" \ cryli large 49.li o2.) I111(ii I alc 'I)(ilt il itta
ooooo/o tral \\ti9II 10(1 XXlId iI liII ilI otfiX PIt0/O'iti'izi,
13 dals atlI at a tocki g rate of 14 2.5 peCI hectar l a I(81 3IictarIc
politI XXitli a XiIIX IXal rate- ot 9 6 i-cIc it alid l a11 dXII ,'c aliliiII
XX fifit t .3lX4IaillX J) 11111ondo . IlIC totaI 1IIII1) 1ll)XX .
kiloiiii perI he)11 r 11( 0 (9 grainsX a(iX l- \\ig t TttXC il l 104 (lAX b\lI
stocking 1.3-gralil fIo~iiielintg at 1,500 per lIlt LII Silrl XI i 81(
9(XtIltIS XXIII( 985 l)IIctIt lilt 2.9 il(iams 101 (LIX
III llX o c fiCIe ti al ICXIIltX \\ (It t\trlt ic (II IX l t tl l ill \ XIIXX
ot, thX tl IcII lIoil a1)81 tllcI-ic 1)Ictd still. iT1 liilo Jio IX O
Demonstration of fish sampling techniques (top), demonstration
station in Sialang Buah, North Sumatra (center), and demonstration
station in Pangkalan Dodek, North Sumatra, showing surrounding
swamps (bottom).
-~ A-
~ N.
A- Xt A-~* X~4~
~t ~ 'Xt. ~ *
-.12
I
11
THIS PAGE: In-country training for technical staff. FACING PAGE: Demonstra- W.
tion of fish smoking (left), graduates of training course for field extension agents7
(top right), and graduates of training course for pilot project pond owner/
operators (bottom right).
k4M-
~~-4
7
Training
Th BFP pr111jtox dcii bing fc-t til Toiiii ot ttrl tm illtficipit fiitt
tig' litttt litt-illti parfoi tplittx tiitpictcd Ml. Sc. dcgt li fxx t\o itt
t~ Phlipptttcx atnt txxo itt tlic 1,nttcdI sfafcx 'I ltcxc Iatt IctIitt
xxtRt xcltctci loil the l)it ittaft (;ttctil of,1 Fixtcricxs staff ttt
Jakatrta. I\\ xxt tfliitiid 'f s lots xxe~ Ittiitti x illllc ttultr the
prttttct c'ixtii fllt ptrtx iticitI lex ei xtaff. I Itox\ (\ c, fatittic itt
prtoiposed
1 
catidatcx to (iljiti itt Efttii itif tltx xiotx tioftilcil.
Shttertmt 3-tot i 1 ti i ittiftt ttugil. i thIt lPltuipp)11lixs xxtx
It voi dlot 
fxii fio troi 
ical fixhi 
ti llt'. Txxi aiftoil 
piar-
ttifpiaitx ititiplitt(I onitoottllih xtttlx tottht xot' atttactlttitc at-
tktx f o itt flIn ( tittd Statesx
Valt l thfe ptiect 2:3 Ittixiticial xftfl rccixd .3 tititittli of'
ftraitog ciclt at the lltaciixit r At~ttitiltuirtDc l \
1
Intou~t
Citt c at ipiaa (Cmittral lx u I )tttunt fthc p iticct c'\ttttxititi ((ic
adiiotnal f~it t-uhlil xaftc xii2 hittL i tttti till
Int atiollt o teilc I~ic, fttt itail traitint4, fot poti ttttal xtalfl a
crictl ittt at flit IFI)Vsx IThix faittit"iig xxax ttitctt T lix tller
icx( iifl omilcual xtaffl xittl ttf' xx loni htad t ittix d till t itiga
Ilpttt lb\ ft fc iuicall iiorx anXil) ti I. Vttxrit 
ctxt t itttxitt
xpeilixt (I)t .I I R Scliuitittl), atnd otict xspeciaixtx xtuch axs ittik
ctivdit prtograt stxfifl Each iif 56 p1itsmitcal stil ticcixd ani exti-
xxa ilot ixtittt.lxtcti ciltttti tIttiiitt tt r
tlitgx attnl
1 
xdit ittip iiatclicu x ioterattitti
flatitigxxtc otx ict lo ttctxtn actfx t 'l2 sxcatlx ii flic
pltiitct. I Istix at\ tx\xxax coototill( totl t icgulat bixi at xtittltt of'
A 2 xx cck xttitl tinit tto tibitr x b11at ltixxatct culttritctix ttcx
illtte hi lilppinesx and Tian a,ts a undictakiib lx titchcitical
ziui1 iii andtII is ( ;0I) coil Int cllat f. A \ xiinilar i Ia) \\ ixs milcrtakcti b%
t irtip of' 1.5 Itidonesiain fishi fat himcr atid (;()I pl-iih dl andt
Jakatrta tixhics sxtaff.
:3,.50.5 mnan dax of 0 itinfitg. Ito mit a xittpliiig of Off0 arilixe xxiii)
Eiii)sl 10 \Xcit fat itict x xxitli iii0 fjxltjtit ltcin- ottid and thec
Production
At ittittiat i( )I of ftl 1t ni it to,IT i t I brclxtiixx te ponItt pro i-
duciiti Pt itcipilx ttilkfixli ill \tcl t a .gtd 190) kiloginoxm petr
littoac pert \ tat liii at total of 7 766 totis tiitii 1.5,SIS Ltectat ix. All
1:2,07:3 toniltx 1 iiotiIS 19 litctis tf ot atnl it cagi of 664 kilot ix
fcl ititart fit xi lar. t~m t-pt cxtiitcdl ai tot ititttaxte of 1,30S tittix
1)(1 xCl ta x(its ict tt-C xttSlt Otf Jl-tiit f ittItiV xNid cvub(I ttIT l\
2,0.52 titti flit fpt ijctproi(littiit ol tif 42,256 tons. 1 lotcxx ax thutt
aI it titticct ititIas i(i aril att iiittlttttd b) a 36 pttctnlt titIclaxts
itl x itct ptt owtll tict tltittg illii a tid pt tttltiton incttaxi tif 56
flititit. Thc l'nuicct l'api ptitctl productioni itlcixse tip) to
9(6) kilt gratt itt tcrhctart ft on ISO)) liectattx for at 2,2.56ton ttal
nat iikcting pittltlitxhic xxl at icliieIixt itt dtlil 1Iltix
ITht 4:305 toilx of' tnex tattilak ptiinlintiiti rcaitctl il Acli
proiie dcxIf kilogtt~rltix of' fixsh pet Ixi Xii fott 4:30,00 piiltsx
potettfiallx ittceasitng ptt capital ctixlttpftitii fioitt tbc preset 20
I~~2
I
I
kiltigrain (in Aceie to :30) kilitgraiitt (COI llllllilllll nuitionial
adi~ionadl liome to taitibak tatier 11( (f Hp. 1,292, 400,00(1 (i lit).
:3001 per kilogi alit T otal 1. 8 I) iiiiiiii t til e project (litii ll, 
the
peCl 111(11976 to I9TY xiilet tis ix od1(1tt xxax r ealized, \\its Hp.
:378,750,000 or lip) SS per kilogirami lot- tie tixii production Iicrease
axs a direct result of' tile pro~tttt. 'I lii cost \kiii be xigtiificaiiti
redutcedl as 014cr-teriii aspects of' tle 
1
loject I~d\ oil' iii Nitii
Solliatra ad
1 
Aceli.
Ili 1981 ftii Accii Fliiericx Serxc lesitimaitedi that tlitie \cxxlie
24,000lilectare x of t iiiiil tak II Acci I a501 picellt illcreaxemcraIdl 
C
it ibet~itllint oft projtect) and annulial pirodutctjion oft 13,600 
tons.
lii N otti Sioiitra signtificanlt p)roduictiont licrass x\\i 'e hIlot
expectedi tii 1111 tii life of'thie Lpiitlict. 'I iix \kx itsle ill part to 
tle(
xtxx star t-tip oiitie projtie itit it) It greaiter liiedxilre to tile folii if'
Nm tli Sumtatra actix iticx oil dred expaionl rithi tili inlteti
sification oif' the limiiitid iii of' eistting tiliitks.
Fish Farmer Associations
II >cebl 1-4 iiexx fixit fait (IiiRx11 adxxiittiiix x ciir lot itied du i 11114
tite project its \\(I]i ixs fitir disxtrict adli onei 1)1-o\ iiicial feideration of'
asxsociationst. Tue assiociationsx facilitate inifuoimaition excillgc dlt(I
extensxion ediuctat itti. At tile ellit tif tue projt}ect iil Aceli (1978) 
t iclic
xx ei 78 assoiaitlions (ill) Irimi 6-1' ani fix\ c fedei ationx utp fi 
iit onle
xx ii inelniicrxiiij) itt :3. 1:35 fatrmters ilp ft 1)11 2,341, c-ox et 
iii(, T.22(0
iicctarex (iip) ft 1111 5,557) A gox eimietit ttiileratix ce K D 1) \iia)
axsixts taiiiiak fatrimers xxith ti aketing
4 
t ofpliltce and prox ixioti of'
inipu ts.
Ill Not ti Suitmatia ttite Cr di1il assocxxijations itl x ai oti stagixs of,
axxoitcatiititx omoposedi oft 17 liitdiix f iioi'elioid. 
i, ipit it ta
Area Expansion
thati xxillj C wiil o ttat"\x dtti iilmat ii Lriit \ iriliiilsi i~
wtll ificalxjiits xa iatic eatix ill li t~iitt tit iictiin itt ctillge
pix C Adliitli- t a-othitie taix itiil ita time ptitli lii fat aetl
tim fa titit \\ titc 119 ititi Iei oii tikittd ']itsihi i t t i pndt
titlti \ iatt usedit tlxjtitandtl dattil ltxxaxd tittht m i I-ti 
tlies
etttl dcii lxl it xd taitliak (lix projecttt tx eitrtc(i 
re
exaion act (iic expensae iii t i iatil x lt 7111 fiti-etirixi
reasos itttjti pitt ii xex eiics xtal ae 1) it-ct ailit 'attitt I xaxl
exaion xiiiit t o be ie ~tiltct colitiit tandtx extiitn aix xxti
ox e lxitttlttlxi(. li Prtx ilcal Ixlii C Sitx tt itetthuil\ of,
targeting construction of 2. 10J0 hectares of tamihak durinIIg RepelIit a
III tihe thirdi .5 xeai plan of the G01l froio 1979 to 1983) incloding a
total of' :3001 hectares of pilot de mons tration tamibak' in the three
dlistricts (Kalbtpateis) targeted for area exansionl. III iex of
proliems eneounter ed and tile unlkelihloodl of lllluediate mlirtier
donor teL'lieial assistane,. the target of 2, 100 hectar es m1ax haxve to
ut' rex isei dlowxnwxard(.
Surveys: A mnaJor projecrt aetix itx )Xax xorx exing tidal Iandx to
(determline their xiiitahilitx for tamiiak area expansxioin. Sut x ex
were coneni t rated in, b)Ut 11ot limited to, fiur regions: the x iein it ex
of tPangkalan Briandoni Kahtipaten Langkat), I3eiaxxan (Kahopaten
Deli S erdan g) B edagai (Kal ip tr'n Deli Serdan g. and Air- J oilan
(Kah upaten Askahan ). Potential e xpansxioni sites xwith a total al ea of,
appiroximatelx t,0.50 iheetarex ai e prexentlx under xvarioux stages oIf
dietailed surv ey, ex aliation andl constr uctioni. A 68- heetai ( pilolt
expaInsion projec't has heen conxtructedl in the Bedagai area, and
has hegonl culture operatinsx.
Appriixiiiiatclx 14,38.5 heetai eshax e beein ximrx exd loigil\x Of'
thix total, 11,72.5 hectares wxere' identified ax haxving poxxible potenl-
tial for tai n ak dex eli It) i t (7,72.5 h ectar es of' this r equiin g
excaxvation or irrigation lix pulmping), and 2,7201 heetarex xwere
cosidleredl to haxve no potenitial for taihak dexvelo~pmhent.
Pilot Project: het Fixsheiriex Sei xice in North Sumal~tra xxax fileed
xxith the question ifif oxx to implement plannedi area expanlsion inl a
wxay that xxax effective, econioillic anti 01rdeirly, as opp~osed to tiit
unplanned, and rather haphazard ult'thlit that hax b~eten tratditional
inl othler taillak areax. Tio aiisxx e thlese qulextionx a pilot are(a
expansion trojctt xxas planned.
Current pr1icex, c'osts, credit termns, andt eiollxrx atix e 1)1 lJectetl
produc'tionx xuggexted that 4-liectare famixy unitx xx oulni pro\. ide
the miiltil~n requiredi net ineomne duinig the ciritical cir(e(it rc-
payilientpc)riod. '\liimiiiig eonxtrur'-tionI toxtx reqIuiredl that mul-
tipltehii failizd xiellits he eonsxtructed xii 10ltai uleo yi an d con-
tigrioixl to) permlit xsharing of dikt'x, xx ater-sxuppN tanalsx maini
gates, and other infrastructure.
A xite xxax xelecerd alnd evxaluiatt'd to tilt extent poxxiible gixven thet
rtesourtces of' tht' Proxvincial Fixhterie's Srvit'. Thirty partitipants
xxerre chosen firom1 alilong formeitr tr aining couirse' participanlts, all o~f
xxhumi lixved( iniiuediatelx adjacent or cloxe to tihe proposedi tamibak
site. A "phase I" projeet xxas diexignled for 17 falinil'. tiiitx.
The partic'ipants organ izedr tilt'nxri e's into a formiial association,
ai, xwith Fixhe'riesx Serxviee assistance, obtaine'd titlte to the' landi
and( nergiot iatted a erediit scee l' xitil the b' an k. het b an k ag 'nto
funid tilt pr ojectt proxie itir qu alifie'd emntriat'tor xx\ax iutilized to do
tht' co'til ctioneti l. Al cash flow ixx l .011 w 1 xax pe)t'l re b\ l tt i tilt b an k
xxithi inpuit frloil tilt Fishetrit'x Scrx ice. Onl this baxix a redoit
pac'kage' of lip. 4.5,00,000 xwax gr anted. Thiis xx ax lateifllcrr'axr'( to
lip. 69,000 000 xxhiich intcludt'd all land a~nd land dt'x tloittii
('lsts, ripe rationi cosixtx fur) t h( f irxt xtar and t a cti xt i nxilg allowixxanice
for the fariel x. C'redit te'in wex xrt 5 x e'aix iniditig I x t',r gralt't
ani 1t0.5 pertce'nt in ter'esxt. There wxax ai~l tixx ittei undi lers tanin 1g
that the red'(it xxiul be1(1 itc el Ito a nc)vn m'x ol (11 re rea1isxt it' tcre'dit
schet'mitt (Rural C'retdit Program then'i li pre )1(pale t'(i titill 1) ('1ici'
tatiitn xx hich xxouldi 1'ngtllei the pax hack peioid to a llaxillinil iii
1.5 xyearx, inlud~tinig a posxxible .3 Neal girace period. \x of' August
1981 BRiI cetrtilal officer ill Jakarta hall nolt x e't appim ox t c tit htiange'
ii ti''aiig h' 'it ~l fii tlt ~ t x'lI 6 x i gi ie i p. 1,01 1,706
per' hecttair' to) a inini ir of'1ii lip. 2 .5t),0 perO hec i 'tart'.
(i n xtructior it bgait in Jun ' 1 979, anti xxax tomilplet ed iin Jii Ii
1980. Cointractor perform((ance xx as por Froml Julie 19J80 to Augu~pst
ulnitx xwere xtockedt anti hax e b~reen oprationlal xince't Apil 1i980, and
txx un~lits xx r ilarx r'tt'tl.
inI addlition to crredit, thre lotal gl~ix 'o111t'l ii sbiized' (1111
strtititioi 1aiigatr'x antii ilprox t'iiiit'fthelaicn caii a iit t'it(-
iof Rp. 7,t0,00. The' tcentral govxetrnmenit marie axvailable a Rp.
e'(xxs xseepage dut' to poor soil qualitx.
The pr'eent need of l' the ro)jr'tt ix an incereaxe in thr' credlit
amounlirt uinderr thte Rural Credrit project, anti an en~ginering xpt'
tialist tot axsixt in planing the ne'essary iilltol ix O'iltx.
Economics of Area Expansion: InI xtudyxing hlistoirical re'cortds it xwas
it'ai ncr thait tautiak consltrutionl has alxwaxyx beetni diifficult alid
grntrai unaxailahilit. oflcapital. Schuxte'r (1952) esxtimlatt'd that 21
petrtcentt of' the' plits ill Jaxva xxerr' iiprollctixe ob ecausxe of in-
suLAOirtcx'sax atiori anti lIt'ft'it that tilt prospexts offillprix t'ilt
xxetre not goioid unletss govxetrnme'nt axxixtantce xxas mnade axvailabile.
Cotriucetiion xxax iiftt'n doine gradluallx oxver a pe'riodi of :3 x tars or
moor' iit toi tht' lark of eapital anti tecthictal dleficinciitiex, delas ilig
producntion tiiitii tue lfourth\ car, anti thuIls liii ti rr(111) co pict'iig anl
alreoady prectarious xituation. Aithitoigh tcostx rtemaini high, prox-
pett for1 faxstr anti in Ille teconic1)mallx ando t('oiln ical i sillnid
Site selection for new ponds (left), preliminary survey for new pond site (center), and pond dike construction (right).
V~
\4
/
<#~ j
a,
thit sillall loldlci hlas 1101)1o eI d thi oulil libelrail cedit Xciciiii'
Xui)iit'( IbX lical ad~ iiiterniationial fiiiaincial (liX i'oplflcflt ilisti-
alitX of Inlternaitionail iliketX cspeiadlX tOr the shlimp pi or'tin of'
the crIop, lids iiiilp'o\ ii tht lilig'itil l c(oliillic lt'dsibilitX X bhat
r c l i d i si t '\~ i t t' t ali \ l l hi k n a n d t'\ 1 ) l i c a iii l 1 0 a x I Xt l " XX c l IX t o ~
IiiCaliX, \ 1( CCi ii iiit ilia Xoliild. Thet priipectii c' X'dit of' aiea
Budgets. fo- projecits A aind B, \x lilti die dcriibed aire tak'ii
of' Niorthi Sumiatrad 11(1 Matil 'I'll,\iX 111eseit liiilitc situationsi
XX Ilitli art' lot diclI compi1)iaale (Ilii to) iflifi lgconstrutitoin
Niiti that figtii e' for proijcct A\ itflicct total cost ti tht TSlitctait'
'.iilliiolilC' estate, \\ lit'cdX 1)1 iJt't B figtiir reitflectt the cost for a
Piroject A taliX pageXs 16-17 IX is li'dst-ci)t situationi ill XXlic'l
tidal I all g c ii land (.1c\' atiol is suicli thbat thet oil] Ix c\Cd at 1111
r-cqir isI toolitailoXiil fot- tbe dikes. Thie priject is for a4 TSbectare,
12-unit Xllliboflci esXtaite. Hilisiig,, as \\I ell as iii podconstriictiii is
pro\ii idlit ililtici tlli' capital ilOX iti huit itein. Aliiiiai pr1oductioii
ill i cae are( b ilaXsid ii pi i a I c'ai ii ill c , C iii ro cii 1)lX ii laagc'l t
rathei'r thI an i ncreasedi inipIit's. The is count rate to es tinmiate the lit
pri'eient X allii of ciistX adi leXe ic ci is 15 pe'rcenit. -Ilii itt bceiti
cos~t ratio = 2206. l)eXccoii)~icit capital il'l Pup 9:.926.S7 8)iX
aimo0rt ized 'iilie 7 X\tars XwXith a 1 X ar garace peiodt and iii nu iial
peceintage' rate of' Itt.5 pcircent.
F'. PanX i 01 prog itt B3 tal Ie' page 17) iX al Xi)a-48-Ilect are, 12-1 liit
s iiial iliiiilde c Xtatc. It Xs at highei cosit Xsitulatioin ill XX Iicl e\CXe at ii
of :31 piertent of tbi' ponidc bottomn toa aiiIX ige dethtl of .5 incttis
i-cquilcd aiid iX fiiiimcc'i unldei thii circedit Xcheime. stacd cl ca-
Xdtiiil of iii adiditioiial 11I percent of' thle pond boittoii X\iiiild take
p
1
lact i IXci a peiodx of I I Xcr Cdi liltid byX thet fan liii, and prio-
ductiiii from11 thliX ecatiXatecl area Xwouild cintribunte to pa back IiX i
thet lift' oif' tbe loan. ExcaX ation of' the balance XXoulid take piace (IX
the liim has id thie iesources.'The I it iai~iiillo dliii d cr edit cit Pip
1(0 Ott010011 pe'r biii \\c i ii i der thie 3ui ai Criedit Pr
m
iigril is uXsied
wXithi a~ pdXback oif 12 X\earsX iincluiinig it 3 X ei grace period, aind
initerest of' 10.5 peiit Houstiing iX not iiicludedl. 'Te fiirXt 6 Xicars
of' thet piroject are thet mosit ciritical, and an end-loaditI repaymbent
Pond gate construction (left),
Xihlic( XX ias iiX istil tol case~ thc repaX ilitilt iiiii li ili iii iX Xcars
Thil pon di
1
ieX ignii icle tXoXl cdepoi toies t for ex\CXatio w11 Xitbin
tile poiltl ol \\110 XXicli coc'iiiiit 6 ccX \N ill lie p~lantedt. Coiconuit
iniicm doesi not assist thie piolecct iii the eaiiX cr iitiia 'tageX
bowc\ cX , b caiuse ii lit maitulratio~n lagtulleim of about 5 X cars1 . GOI
Xtll)XidlX t fiiiiifi (Isti ctuisi 'IX 3t).Ott t30000000
\\ bute the use if bc'dX X cqliliprnlcnt. \\]let-(, conditionsX peri t its
[Ise, XX liid hlp~ XiiXe thie 1p1oblemi of' liabii Xtitpt) fur pond1( till)
Xti iitioiii thie cos~t illaX bei hIugler tbuim boild iibori becausei of, tile
lack of' approIpilate ciipiloent iuiadc'iloate equiillet i 111.01
tenaici itt d lin iexperien ced operators. The ii i Xi of beaX X eipm111 ent
Xsoight to eii'.tie tile i tfec tiX and ccinioiliic IIXC of cqulipiiiellt.
Employment
for Acell buiit b ase line daita foi coimIIpaiso w IIl ith 1)ilt-pci 9ect ein)-
tlii i n 'lt ai c' ackii g. llt addition to conllXsilteIale tc ip )01di labior
pro\i ided b\ pon 1))11cinsXtirlction and r11( nCmII at 11)1 act iX it icX, the tail) -
bak iiit iXt r\ ill Aceb pro\I icled fil I-ti ic ciiiIoX iliilt foi appi Oct
fliateiX 7, 12:3 fih farili ownersti 2 :300t Liai llwne ir tiiil. membiiIIlers,
2,561) fl iii faii car etakeisX 501( XllniI proXesin wokcers, antd 150
111(1kit iiig Xi irkc'rX. It is reasoinal aXsXIIumeid tbat subs )taniitial neCXX
Cii )1 lilt 'lit XXs crati d 'itst aX 1 CXiit iif poniii productio mc11I-'ca~sc,
iltel sIXfIi'd colilectioni andc iiarketin g if' 1111kfishX fry, andi talI batk
ireai t'cpaiioi byX a r eporlted 2,348 hleitaies CXhrtml 1978 to 1981 ain
adiditional i i icirease of' 6.00 hI t ectares XwasI reportctl I I the Aceh
FishlerieX 8erX ice.
As a cons~eqtuenlce of isperlence inl Northl Stimatrai it is estimlatedl
tbat tilt IX 'raigc l abotr reqiremenii it per foirii ectare tai i (k uinit iX
toneX raiIit1111.t( 11 h I XII Iw iladil ltI i of tiua labo pe \lca cfo aX Fo t poll
iostution:0 (iii -a\si run iiiretd per hictare for cvto
IIC rip
1 
ii caia andi ike. oiX ., 125 nnd7 e etr o
c'iea'i ii g an d It0 nian11-dl\ X till'gate ctruXtilct ion). ThlereI ii ddit itlt
labor~ cireat iii inl tble mairket ing, 1)1 1 I fii g alint ill IplIt XtipplX
sector ho X)X cer, 1111 incn tailXre avXailale fur ttlai t if' ii ig thiese
factors.
and pilot project ponds (right).
4
~tt
Field Trial Station
'I'llele is it lice(I ill tit(, nortlierl) Sumatra pro iect to Atilill
pro(luctioll datil floill colltrolle(l Xicld trials to (Ictcrillilic pro-
duction's possible till(ler locill conditions ofsoil, \\ittcr and clilliatc.
Tllis illf,61-Illittion is llcedcd to support c\tcllsioll actkitic's and
J)lo\ ide dilta lot- bu(li4et prowctions lot- arca c\pansion fCitsil)dit\
P rod I I ctjo I I trii I Is xx o I I I (I it Is o pro\ I d e ad d it I() I I it I I cill-Iii I I,,, expci
ences lot- projcct stiff. Limited prodil(tioll trials lla\e I)ccil coll-
(lucted at PFDL',s \% Iiicli \\cre (lesi"'Iled tot demonstration, not ficl(l
t ria Is.
Duriog flic flifixt \ (,at- of tit(, proicct it 1 ecol 11111 ('1 Iditt jolt \\aS illit(le
to co I I trl Ic t it fie I (I trial ftei I it\. ( )\ c I t I I c I I(,\ t :2 \ cars it sit C, wits
sclcoed and (,\ alitilte(l illl(l tll(. liwilit\ dcsi(,'Iw(1 \\ it 11 tlic assistalice
of it collsklltilli. clll illeer \ All collsi(lerahle c\pcl icocc in (Icsilall of'
brackisliwatcr pon(ls. Final drim illl s \\ crc pi-cpal c(l all(l 
lip.
10,000,000 were Inade m ilililblc b\ ( J )I for thc first 
p1litse of'
(]('\ clopillent, consisting of' fificen 500-in ' pond,, four 2,500-m2
powls, aod buildim4s for laborator\ , stoiat4c and liollsing.
Marketing
Projcct l'aficrestilliates \ civ tliat miolct (1cmand %\xs snificicot
to absorb proicocd production illcl-cascs I (-sliltiln" fl-ool dic pro jcct
ill AcdI. Actual pro(Itictioll incl-cilses, lIo\\c\cI-, \Ncrc ncilrl\
double t1le projections, Ml(] Illin-kctill", diflictiltics \ crc c\pel-j-
cficcd b\ t1le fisl) 1 lrlllers.
FflOrts cill-l\ ill tlie project to locate export markos f'Or milkfisli
wcrc oot pioinishw. Visits to flic Jakarta miukrts ito(I (liscussions
\\ till officials tlicre ill 197S ('stablislicd t1lat (1cilialid \ it,, stIfIR i(,Iltl\
liii_ li to absorb excess Aceli production. I hm e\ (,I-, tlic attellipt to
establisli. mark-ctim4 linkages \Nas not succcssfol.
Ill late 1980, it specialist fi-om Atil)(11-11 ('11kcrSit\ tDr. Gregory
Stillkim) conducted it iiiiii-kcting stti(l\ for milkfisll all(I slirillip
produccd tit tanibaks ill Ac(d), and proided it (olliprelicliskc
report of' llis findings. His recoillillelldittions locused oil (,'i\illg
prioi it\ to iniii-kct reseiti-cl) ill proicct allilk sis, pro% idill", ill) insti-
tutiotial fl-iunc\Norkitt national and pro\ iocial ](,\(+s forf'[Sll Iiiiii-ket-
ing, and cXpailding flic role oftinobak fai iner associations tit vAi
Pro\ ince to illd 11(le it (lirect ill% ok ("neot tit inin-kctim4 dicir
pl odlice.
'I'lic mai k(,t lot \(-(,It III imp production is stroll"', both lot local
Mill cXport salc. slirillip is t1lils ill[ important 
titillbilk (-ollllllo(lit\ ,
ilod tlicl-c is it desirc illllolli tillilbak- fill-111crs to 1oiI\iloizc plo-
(Inctioll. 'I'lic c\tcllt to \\ Iii(Al this cilil be (lolle, lio\ c\ cr, is 
lililitcd
dlic to t1w IIII.Soitilbilit\ of'sonic pollds (oftell too sliitllo\\ ) fill shrillip
cultiliv, and liloitc(l llilturill occill-l-Clic-C of' sill-hop post-litr\ it(- ill
SOHW iff(I&S.
Shrimp Hatchery
A skillip liatclici\ tot- PcIlacils monodoll ill t1w ooldwril Still]-
iltril ill-ca is I C"'it I d( (l its cssel It tit] to pro\ ide ildc( I I lilt ( I It I I I) I w 
I s of
slil ilop post-liti-xiie to slirillip producers. 'I'llis 
is c"pcciall\ critical
for Noltli Suillatra proxince. its tlic ecolloillic fCitsibilih 
of tambak
arca c\paosion \\ill (lcpcod silbstillitkill\ upoll t1w pl odliction of'
llit4lier \allic dirillip.
slirillip liatchcr\ tcclilloloL \. is establislied slifficicild,\ 
to 1)(']*Iliit
scitle opelatioll, its ])its been (lellionstratcd b\ tlic (;()I
liatclier at Jcparit, Cential ja\a. A liatclicr\ Ior tlic lioldwill
Stollittril region \\olll(l I-c(loire it iiiiiiiiinim production 
capitcit\ of 5
million post-lilr\ilc ficr illontil. Constilictioll 
cost \\oIlld bc ill)-
proximittel\ Rp. :300,000MOO, itil(I Rp. 200,000,000 \\oold 
bc ic-
quil-ed tot- iloolial opciatili(" ('\pelises. 'I'll(, 
skillcd pci-
soilliel Iwcdcd\\oIIl(l bc one biolot4ist ted ill iciall. olleillailltullillicc
teclinician and it\(, skillc(l \\orkers.
'I'lle U'l-clich (_,o\cI-olI)(,IIt llits recentl\ committed itself, to 
ii -
sistill'-, t1w (:()I to dc\clopit llatjoll\ i(lc slirillip liatclicr\ pro"'ritill
to be Ilmdcd b\ tlic Asian l)c\elol)nient Bank.
Pumping Systems
'I'lle fCasihilit\ of ploopim4 as opposed to cvil\iltion ill llit4h
cle\atioll/l(m tidill lZill'i4cilivils wils not tlloroilt llk c\allIiItcdd1Icto
(1clil\s and prob1cols \ itll I)IIIIII) installation at t1w pilot project.
, r1w initial capital 
olitlil\ lot- pulliping 
ap1wars to be 
nillcll clicalwi-
diall cv.a\iltioll. col [till tlim" opcrationid, 111itilitcliali(c
Mid equiploclit (lepi-cciatioll costs ])]list bc collsidclvd and bal-
itlIC(ld a("ilinst polld illilintellalic-c requircillcilts incliricd b\
ev.a\ittioli.
Pumping water from tidal channel to pond supply canal.
hI
i.4
A~.~g?' ,#
#~ I
14
4
i~
p'i
Al
- - I 
, -V
PROJECT REPORTS, REVIEWS AND PUBLICATIONS
(1) "ANNUAL REPORT- BRACKISHWATER FISHERY PRODUCTION
PROJECT - INDONESIA", by Bryan L. Duncan and Michael C.
Cremer, December, 1977.
(2) "TDY REPORT - INDONESIA BRACKISHWATER FISHERIES
PRODUCTION PROJECT", by H.R. Schmittou, Auburn Uni-
versity, August, 1977.
(3) "MARKETING AND CREDIT PROBLEMS CONSTRAINING
ATTAINMENT OF OUTPUT GOALS FOR BRACKISHWATER
FISHERIES PRODUCTION PROJECT", by E.W. McCoy, Au-
burn University, August, 1977.
(4) PROJECT APPRAISAL REPORT (PAR), BRACKISHWATER
FISHERIES PRODUCTION PROJECT, USAID, July, 1977.
(5) "FINAL REPORT - PHASE I- BRACKISHWATER FISHERY
PRODUCTION PROJECT - INDONESIA", by Bryan L. Duncan
and Michael C. Cremer, September, 1978.
(6) "EVALUATION OF MARKETING MILKFISH FROM LHOK-
SEUMAWAE TO JAKARTA, INDONESIA", by Michael C. Cre-
mer, November, 1977.
(7) "TRIP REPORT - MILKFISH MARKETING SURVEY IN
SINGAPORE", by Michael C. Cremer, August, 1978.
(8) "TAMBAK DEVELOPMENT PROGRAM FOR NORTH SUMATRA IN
THE THIRD FIVE-YEAR PLAN", by Provincial Fisheries Ser-
vice of North Sumatra, December, 1978.
(9) BRACKISHWATER FISHERY PRODUCTION IN ACEH AND NORTH
SUMATRA. Proc. of Mangrove Forest Ecosystem Seminar,
Jakarta, Indonesia. February 27 to March 1, 1978. pp.
162-164 by Bryan L. Duncan.
(10) "BRACKISHWATER AQUACULTURE DEVELOPMENT IN
NORTHERN SUMATRA, INDONESIA", by Michael C. Cremer
and Bryan L. Duncan. Research and Development Series
No. 23, International Center for Aquaculture, Agricultural
Experiment Station, Auburn University, Alabama. April,
1979.
(11) "REVIEW OF BRACKISHWATER AQUACULTURE PROJECT-
SUMATRA", by D.D. Moss, Auburn University, February,
1979.
(12) "TRIP REPORT - BRACKISHWATER AQUACULTURE AND SEA
FISHING NEAR MEDAN", by Donald K. Emmerson, Center
for Southeast Asian Studies, University of Wisconsin, Mad-
ison.
(13) "ANNUAL REPORT - YEAR THREE- BRACKISHWATER FISHERY
PRODUCTION PROJECT- NORTH SUMATRA, INDONESIA", by
Bryan L. Duncan, October, 1979.
(14) "LAPORAN PROYEK PEMBINAAN PERIKANAN RAKYAT DAERAH
ISTIMEWA ACEH (BRACKISHWATER FISHERY PRODUCTION
PROJECT, TECHNICAL ASSISTANCE USAID)", by Dinas Peri-
kanan Daerah Istimewa Aceh, 1979.
(15) PROJECT EVALUATION SUMMARY -BRACKISHWATER
FISHERIES PRODUCTION PROJECT, USAID, 1979.
(16) BRACKISHWATER POND DEVELOPMENT IN SUMATRA, by B. L.
Duncan. ICLARM Newsletter, Vol. 3, No. 4. October,
1980.
(17) "ADMINISTRATIVE REVIEW REPORT FOR BRACKISHWATER
AQUACULTURE PROJECT AID/ASIA-C-1177", by E.W. Shell,
Auburn University, December, 1980.
(18) "ANNUAL REPORT- YEAR FOUR - BRACKISHWATER FISHERY
PRODUCTION PROJECT- NORTH SUMATRA, INDONESIA", by
Bryan L. Duncan, November, 1980.
(19) PROJECT EVALUATION SUMMARY - BRACKISHWATER
FISHERIES PRODUCTION PROJECT, USAID, 1980.
(20) "ECONOMIC ANALYSIS OF THE BRACKISH FISHERY
PRODUCTION PROJECT", by Ernesto Lucas, USAID/
Indonesia, 1980.
(21) "ANALYSIS OF THE STATUTE AND HOUSEHOLD RULES OF THE
DIKE FISHERY PROJECT MANAGEMENT UNIT AT BEDAGAI",
by Ernesto Lucas, USAID/Indonesia, 1980.
(22) "A MARKETING STUDY FOR MILKFISH AND SHRIMP FROM
BRACKISHWATER TAMBAKS IN ACEH PROVINCE, SUMATRA,
INDONESIA", by Gregory Sullivan, Auburn University, May,
1981.
(23) "REPORT OF AQUACULTURE ENGINEERING CONSULTANT", by
Ricardo Hechanova, March, 1981.
(24) "THE INDONESIA BRACKISHWATER AQUACULTURE
PRODUCTION PROJECT COMPLETION REPORT", by Bryan L.
Duncan, August, 1981 (DRAFT).
(25) "AQUACULTURE TO PLAY IMPORTANT ROLE IN INDONESIA'S
FUTURE", by Michael C. Cremer and Gregory M. Sullivan.
Aquaculture Magazine, Vol. 3, No. 2, 1982.
15
Year
1 ..................
2...................
3...................
4...................
5...................
6...................
7...................
8...................
9...................
'Capital investment Rp. 9,
b Based on Rp. 600,000, 
d(
eBased on tax of Rp. 5,00(
dlnitially at 2% 
capital irnv
Year
PROJECT A. SCHEDULE OF FIXED COSTS (RUPIAH) - 48 HA SMALL-HOLDER ESTATE
Amount of cap.a Annual depreciation" Taxc 
Maintenanc']
investment equipment and repair
Grace period 240,000
22,638,400 300,000 240,000 1,878,536
22,638,400 300000 240,000 2,160,316
22,638,400 300,000 240,000 2,484,364
22,638,400 300,000 240000 2,857,018
22,638,400 300,000 240,000 3,285,571
22,638,400 300,000 240,000 3,778,407
-300,000 240,000 4,345,168
300,000 240,000 4,996,943
3,926,000.
epreciated over two years.
0 per hectare per year.
'estment escalating at 15%/yr.
Labor cost'
PROJECT A. SCHEDULE OF VARIABLE COSTS" (RUPIAH)
Cost of Cost of'
fingerlings fertilizer
Cost of
pesticide
2........................... 3,627,000 8,782,650 4,643,700 161,520 17,214,8370
3........................... 4,171,051 10,100,048 5,340,255 185,748 19,797,101
4........................... 4,796,708 11,615,055 6,141,293 213,610 22,766,666
5........................... 5,516,214 13,3571,313 7,062,487 245,652 26,181,666
6........................... 6,343,66 15,360,910 8,121,860 282,499 30, 108,915'
7........................... 7,295,193 17,665,046 9,340,139 324,877 34,625,255:
8........................... 8,389,472 19,972,702 10,741,160 373,606 39,476,940
9........................... 9,647,892 22,968,607 12,352,334 429,646 45,398,481
a All costs escalating at 15%.
'At Rp. 90,000/ha.
,!Milkfish @ Rp. 25 X 1950 (30% mortality) X 2 seasons X 40.38 ha.
Shrimp Rp. 6 X 10,000 X 2 X 40.38 ha.
d Organic fert. @ Rp. 25,000/ton X 3 ton/ha/yr X 40.38 ha; inorganic @ Rp. 100/kg X 20 kg/application X 20 appl/yr X 40.38 ha.
eDerris 2 appl/year X 4 kg/appl. X 500 kg. 
X 40.38 ha.
PROJECT A. PRODUCTION, PRICES, REVENUE OF TAMBAK PROJECT (RUPIAH)
a r Production 
in kg/ha
~armilkfish" 
prawn')
....... 600 150
....... 642 173
(630-660) (164-177)
....... 687 198
(662-726) (178-209)
.. ..... 783 228
(695-799) (194-246)
....... 837 262
(729-878) (212-291)
....... 896 308
(765-966) (231-343)
.. ..... 958 347
(804-1063) (252-405)
....... 1025 399
(844-1169) (274-478)
aBased on 7% (5-10%) increase 
in yield.
b Based on 15% (9-18%) increase 
in yield.
TBased on 15% inflation rate.
Prices in Rp/kgc
milkfish prawn
1300 3500
(800-1500) (2500-4500)
1495 4025
(920-1725) (2875-5175)
1719 4629
(1058-1894) (3306-5951)
1977 5323
(1217-2281) (3802-6844)
2273 6121
(1399-2623) (4373-7871)
2615 7040
(1609-3017) (5028-9051)
3007 8096
(1850-3470) (5783-10,408)
3458 9310
(2128-3990) (6650-11,970)
Revenue from 40.38 ha
milkfish prawn
31,496,000 21,199,500
38,756,300
47,686,882
62,507,877
76,822,990
94,611,95
116,322,000
143,124,000
28,117,604
37,09,996
49,006,95
64,757,487
85,851,110
113,440,000
149,999,000
Total fixe~d
costs
240,1000
25,056,936
25,338,716
25,662,764
26,035,418
26,463,971
26,956,807
4, '885,168
5,536,93
Total
variable cost
2.
3.
4.
5.
6.
7.
8.
9.
Total revenue
40.38 ha
52,695,900
66,873,904
84,66,8
111,514,000
141,580,000
184,463,000
229,762,000
293,123,000
16
Cr)O
.Y"YV~,"" ~CI~LV~ Lly ~)VVV
PROJECT A. COSTS, REVENUE AND PROFITS AT CURRENT & CONSTANT PRICES (RUPIAH)
Net present value of: Incremental
Year Gross revenue Gross costs 
Gross profits Revenue Costs profit
1 ........... 240,000 -240,000 240,000 -240,000
2....................... 52,5695,900 42,271,806 10,424,-094 45,822,522 36,758,092 9,064,430
3....................... 6*6,873,904 45,135,817 21,738,087 50,566,279 34,129,162 
16,437,117
4....................... 84,696,848 48,429,430 36,267,418 55,689,552 31,843,136 23,846,416
5S....................... 111,514,000 52,217,084 59,296,916 57,175,300 29,855,288 27,320,012
6....................... 141,580,000 56,572,886 85,007,114 70,390,280 28,126,720 42,263,560
7....................... 184,463,000 61,582,062 122,880,000 79,748,400 26,623,600 53,124,800
8 ....................... 229,762,000 44,362,108 185,390,000 86,376,000 16,677,)300 
69,698,700
9 ....................... 293,123,000 50,935,424 242,180,000 95,822,400 16,650,800 
79,171,00
TOTAL: 541,590,000 220,664,000 3201,926,000
PROJECT B. SCHEDULE OF FIXED COSTS-4 HA UNIT (RUPIAH)
Year Capital investmnent' Sluice gate depreciation" Tax" Maintenance"d 
Total fixed costs
1.................. Grace period 20,000 
20000
2................. Grace period 69,000 20000 200,000 
289,000
3.................. Grace period 79,350 20,000 230,000 
329,350
4.................. 1,240,278 91,252 20,000 264,500 1,616,030
5.................. 1,240,278 104,940 20,000 304,175 1,669,393
6.................. 2,03,612 120,681 20,000 349,801 
2,564,094
7.................. 2,03,612 138,783 20,000 402,271 2,634,666
8.................. 2,03,612 159,600 20,000 .462,612 
2,715,824
9.................. 2,490,280 183,540 20,000 532,004 
3,225,824
10.................. 2,490,280 211,071 20,000 611,805 
3,333,156
11.................. 2,490,280 242,732 2000 703,575 
3,456,587
12.................. 2,490,280 279,141 20,000 809,112 
3,598,'533
13 ........ 321,013 20,000 930,478 
1,271,491
"Capltal investment Rp. 10,000,000/4 ha 
unit.
Repayment end-loaded at 10.5%/yr.
"Initial cost of sluice gate Rp. 300,000.
Depreciated over 5 years including 15% annual inflation.
'IPEDA tax @ Rp. 5,000/ha/yr.
"I1nitially at 2% of capital investment, escalating at 15% 
/yr.
PROJECT B. SCHEDULE OF VARIABLE COSTS.- 4 HA UNIT'
Fingerling!
Year Labor") post-larvae' Fertilizer' 
Pesticide' Total variable cost
1 .................
2...................... 99,900 441,25 82,500 
4,440 628,065
3..................... 114,885 507,409 94,875 
5,106 722,275
4..................... 132,118 583,520 109,106 
5,872 830,616
5..................... 165,623 738,153 138,019 
7,428 1,049,23
6..................... 190,446 848,876 158,722 
8,542 1,206,606
7..................... 219,036 976,207 182,531 
9,823 1,387,597
8..................... 272,709 1,234,902 230,901 
12,)427 1,740,939
9..................... 319,616 1,420,137 265,536 
14,291 2,019,580
10.................37,588C 01,633,158 305,36 Qr- 7 16,434 2,322,54 N7
2 thru 4, etc.
ODerris root, 2 application s/yr. x 4 kg/
application x 1.11 ha for year 2.thin 4, etc.
17
PROJECT B. PRODUCTION, PRICES AND REVENUE (RUPIAH)
Year Production in kg/ha/year 
Prices in Rp/kg Revenue from Total
milkfisha shrimp" milkfish shrimp 
milkfish shrimp
1 . . . . . .. . .. . . .
2............. . 600 200 900 
4,500 599,400 900,000 1,499,400
3............. . 642 230 1,035 
5,175 737,562 1,190,250 1,927,812
4............. . 687 264 1,190 
5,951 907,458 1,571,064 2,478,522
5............. . 783 303 1,369 
6,844 1,297,031 2,073,732 3,370,763
6............. . 837 349 1,574 
7,871 1,594,100 2,746,979 4,341,079
7............. . 896 401 1,810 
9,051 1,962,330 3,629,451 5,591,781
8............. . 958 461 
2,082 10,409 2,612,868 4,798,549 
7,411,417
9............. . 1,025 530 2,394 
11,970 3,214,544 6,344,100 9,558,644
10............. . 1,097 530 3,753 
13,766 3,956,254 7,295,980 11,252,234
11............. 1,173 530 3,166 
15,830 5,236,342 8,389,900 13,626,242
12.............. 1,255 530 3,641 18,205 
6,442,932 9,648,650 16,091,582
13............. 1,343 530 4,187 
20,936 7,928,629 11,096,080 19,024,709
a7% increase in 
annual yield.
15% increase in 
annual yield.
'15% inflation rate.
PROJECT B. GROSS REVENUE, COSTS AND PROFIT (RUPIAH)
Year Gross revenue Gross costs Gross profit
1 ................ 20,000 -20,000
2................ 1,499,400 917,065 582,335
3 ................ 1,927,812 1,051,625 876,187
4 ................ 2,478,522 2,446,646 31,876
5 ................ 3,370,763 2,718,616 652,147
6 ................ 4,341,079 3,770,700 570,379
7................ . 5,591,781 4,022,263 1,569,518
8 ................ 7,411,417 4,466,763 2,944,654
9 ................ 9,558,644 5,245,404 4,313,240
10 ................ 11,252,234 5,655,703 5,596,531
11................ 13,626,242 6,384,568 7,241,674
12................ 16,091,582 6,965,713 9,125,869
13................ 19,014,709 5,143,746 13,880,963
18