Considerations of diet, stocking density, distribution, population estimation and economics in the pond culture of blue shrimp (Penaeus stylirostris Stimpson).

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dc.acquisition-srcDr. David V. Aldrichen_US
dc.call-noSH380.6 .H34 1981 GBAYen_US
dc.contract-noen_US
dc.contributor.authorHardin, M.P.en_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T16:59:52Z
dc.date.available2010-02-15T16:59:52Z
dc.date.issued1981en_US
dc.degreeen_US
dc.description168 p., Thesisen_US
dc.description-otheren_US
dc.description.abstractBlue shrimp (Penaeus stylirostris Stimpson) were cultured in 10 0.1 ha ponds from July 18 to December 7. Four ponds were stocked at each density of 10,000 and 15,000 shrimp. Remaining shrimp were stocked into two ponds at densities of 4,200 and 5,100 shrimp. Four ponds (two at each density of 10,000 and 15,000) received a 25% protein ration, MR-25. All other ponds received 96.9..R, also a 25% protein ration. Additional research was performed as a supplement to the main pond experiment. Specifically, a common technique for counting large numbers of shrimp postlarvae, volumetric subsampling, was tested for accuracy under various conditions of temperature and postlarval size. Also, random sampling with cast nets was assayed for its utility in predicting pond population sizes and determining patterns of shrimp distribution in ponds. Finally, an aquarium experiment was performed to determine if differences in the palatability of the two pond rations existed. Growth during the initial 70 days in ponds appeared to be insignificantly influenced by population density and significantly influenced by diet. Faster growth tended to occur in ponds receiving MR-25, a result probably linked to weights and lengths at day 71 ranged from 6.3 to 10.1 g and 96 to 113 mm. Severe mortalities occurred in 4 of the 10 ponds on the 71st day. This was attributed to pollution of the affected ponds with lead-based paint. Unaffected ponds demonstrated an inverse relationship between initial stocking density and survival. Survivals ranged from 70 to 100% in these ponds. Yield was positively affected by stocking density in the unaffected ponds, ranging from 51.6 to 124.4 kg. Volumetric subsampling tended to consistently underestimate postlarval shrimp numbers by 30 to 40%, depending on temperature and shrimp length. Random sampling with cast nets allowed a highly linear relationship to be developed between mean catch and population density. A tendency was also discovered for shrimp to prefer a pond's end to it's middle. Enterprise budget analysis indicated that with the above conditions as an example, blue shrimp culture would be unprofitable at Cedar Bayou.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeCedar Bayouen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/20821
dc.latitudeen_US
dc.locationGBIC Collectionen_US
dc.longitudeen_US
dc.notesSubmitted by Wildlife and Fisheries Sciences Department, Texas A&M University and Texas Agricultural Experiment Station Project 6463 to the Houston Lighting and Power Companyen_US
dc.placeCollege Station, Texasen_US
dc.publisherTexas A&M Universityen_US
dc.relation.ispartofseries3012.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectPenaeus stylirostrisen_US
dc.subjectpenaeid shrimpen_US
dc.subjectblue shrimpen_US
dc.subjectpondsen_US
dc.subjectpond cultureen_US
dc.subjectstockingen_US
dc.subjectdensityen_US
dc.subjectsamplingen_US
dc.subjectpopulationen_US
dc.subjectdistributionen_US
dc.subjectgrowthen_US
dc.subjectmortalityen_US
dc.subjectmortality causesen_US
dc.subjectpollution effectsen_US
dc.titleConsiderations of diet, stocking density, distribution, population estimation and economics in the pond culture of blue shrimp (Penaeus stylirostris Stimpson).en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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