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ev o Trop, (4): 9-9, 1999

wwwucrac.cr ww.ots.ac.c ww.otsduke.edu

up production of whte srim, Litons vnmi(Dcaoa: Pnaia), on-bar o comrial traws

Carlos E edina-eyna iguel H Beltrn-Gonzlez and Hector T Salinas-Orta

Instituto de Industrias Universidad del Mar. Apdo. Postal. 4, Puerto Angel, Oaxaca, 0902 Mxico. F (958) 43049.Crreo electrnico: peneion@angel.mx

2 Centro Regional de Invesigaciones Pesqueras. Instituto Naionl de la Pesca. Av. Prolong. Ote. de Playa Abieta. ColSan Ju. Salina Cruz, Oxac Mxco

Received 28- VIII-998. Corrected 26-III-19 ccepted 16-I-1999

Rsumen Los laortorios no h logd proucir sucients nauplios de uena alidad por lo que siuesiendo necesario colectar hembras maduras en ta m. in embargo, no siemp se recolectan hembras en lacondicin inseminad. En est estuio, se evlu la colecta de hembras y produccin de nauplios abordo deun bco camaronero durante un viaje cmercial como una tativa para el lavcultivo de en el Golo de Tehuantepec Se efectuaron arrasts en la tarde hasta el anochece. El mejor tiem deat fue de 20 y pdujo una aptura mdia de 37 8 camarones adultos con una sobienca de 72 3 % e observaron desovs desde l 1:00 PM hasta las 02:00 AM, con un mximo a las 12:00 PM. Sesigieron

"14 desoves en cinc das, durante los cuales se produjeron 2.2 x 10 nauplios con una tasa media de

ferilidd y e eclosi de 83 7 %, spectvamente Este trabajo psenta una tcnica que puede proveer desimientes para el larvicultivo a pir e los prouctos reprductivos de crones capturados por la otacamronera comerial.

Ke wrds: Naupl, , Qring, arvicultu

h exica aci shrimp h isamong the most imprant sheries in aiAei (agaln-Barajas 87) and theexic shrimp culture proucin aksec n e contnent Oceanic snseaon ss om Septmer to arc hesmoh sxul mauty

i

rached and usualycomerci sh boats tral on re shri

sub-pulaions a n e ulf ofTehantepecwere reprotio ccs ye-round Thispratice decreases te reroducive outputpotential and lea to sow soc epletion(Salnas-rta per s eductive outputca be save if comercia shimpers recovera miimum aoun o females discded on sde and sawne Jate under ko rigtecniues n is ay eggs a ht and

naupliar sgs can survive in small-saehatcheries loate n the ast ro ths ointof viw small-cale hatcheries couldciumvent the search for readto spawemals (ra al 198 Bray ad aence199 ne of the mny atempts to poucenaupli onbod eial shrimp boats haseport sccessl tls Beltrn-Flix 187).

aur refIcs ignrnce of repoductibavor undr stress and the lac ofequipent aapte t he onditions a seaThis su ams to assess e spawnng anatchig ptet o hite Qim on-board a shrimpawler equipped wi seawater treatment anaeration systems dg a commercial crise inte lf f Teuantep

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DINA : Naupl producton o whte shrp 5

-

o or

nD

5

Fg Incdene te o spawnngs o aed speales caught n th Gul o Tahuantpec Vus eeans SD

A total of 22 x 0 nauli were roucedfrom feales naturally mated (=1) during

four days of eective comrial fisingean fertility rate of MF vaied from 5 5 to8 %. ean eg roduction ranged m122 26 t 244 40 x 103 eggs per spwnMean hach rate vaed from 61 11 to 90 5%, with a mean yield ranging from 83 0 to189 000 healthy nauplii pr pawn (Table 1)Ashmore (1988), Wyban and weeney (191),Bray & Lawrnce (1992 and Robertson (993), uner controled cnditions n e

mainland, reorted lower values: their anfertility rat for L vaed om 0 o% and mean hatching rates ranged om 32to 66. ierences are roably caused b age,eyestalk ablation, nutritional saus, gneticerforance d envirenal condiins(Bry & Lawrence 1992) Oshore spning

under the condition f is satises nauliiproduction needs for a small-scale atcheryowver, intrannual varations o abundanc must be monitored rgularly toestimat how many MF could be cagt usingthis approac

ature female ansport is a iicult asfo laulture orations ih malit canocur du o stress caused by trawling and

confinement (Beltrn-Flix 198) Lowdensity connment rials (9 shms er m2)during trnsport on a shim trawler producdhighest survival in 24 . Survival at 8 h ofransort at this density yield no furthermortality (Tukey's HSD tests

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96 EVISA DE BIOLOA ROPICA

RFENCS

Ashmo, S B 988 Nauplii production results from aommercial P maturation facility inHawaii (Abstrat) J World Aquaculture Soc9:5A

Beltrnlix, J L 987 Captura y desove de camarnP Boone y rStimpson. Cien Mar (Mx) 1: 6

Bray, , G W Chamberlain & A L Lawrence982Increased larval production o P r byaicial insemination during souring cruises JWold Mariculture S 13:2333

Bray, W A & A L Lawrence 198 Sourcing Pr: A summ ry of larval production, incidenceof aptu of ated females, and mating ncidenceby time f ay on research cises 198982 J.World Mariculture S 15:128

Bray, W. A. & A L. Lawnce 992 Reproduction ofP species in captivity, p. 9317 I A W Fast

& L J Lester (eds) a shrimp ulture:Principes d practices. Elsevie Amsterdam, theetherlands

MaglnBarajas J 1987 The Pacic shrimp sheryof Mexco COFI Rep 28:2

Roberson, L, B Bray, T Samocha & A. L Lawrence993 Reprodctin of penaeid shmp an operationsguide, p 732 I J P vey (ed) CRC

Handbook of mari cultue Vol 1 CrustaceanAquaculture CRC, Boa Raton, Floda

Teece, G. D & J M Fox 993 Design, operation andtraining manual for an ntensive culture shrimphatche (wih emhasis on P d andP Texas &M University Searant Coll Prog, Galveston, Texas

Wyban, J. A & J N Sweeney 1991 Intensve ShimpProduction Technolog The Oceanic Insti ShrmpManual The Oceanic Insttute onolulu, Hawaii

6 p