Spawning and Larval Survival of the Pink Shrimp,Penaeus duorarum, in a Small Culture Facility

Autor:	Geraldine M. Cripe
Rok vydání:	1997
Předmět:	Larva animal structures Ecology biology fungi Broodstock Aquatic Science biology.organism_classification Spawn (biology) Shrimp Isochrysis galbana Fishery Animal science Algae Penaeus Tetraselmis
Zdroj:	Journal of Applied Aquaculture. 7:29-41
ISSN:	1545-0805 1045-4438
DOI:	10.1300/j028v07n01_03
Popis:	Eye-enucleated pink shrimp, Penaeus duorarum, were successfully matured, mated, and spawned in 1.23-m diameter tanks. Broodstock of five to six female shrimp spawned, on average, 50% of days during which expanded ovaries were observed. Average daily spawn of viable eggs ranged from 2,750 (September) to 11,026 (March). In a preliminary experiment, shrimp fed the bloodworm, Glycera dibranchiata, as well as maturation pellets, produced twice the number of eggs as the shrimp fed pellets only. Survival of shrimp from egg to postlarvae fed the unicellular algae, Isochrysis galbana or Tetraselmis chuii or the diatom Chaetoceros gracilis and combination rations of/, galbana with T. chuii, or Skeletonema costatum, suggests that 7. galbana is inadequate as a food for pink shrimp. The greatest survival (83 ± 3.2%) was obtained with C. gracilis, indicating that it is a better food.
Databáze:	OpenAIRE
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