International Journal of Fisheries and Aquatic Studies
2019, Vol. 7, Issue 4, Part D
Ocean nursery rearing of sea cucumber Holothuria scabra early juveniles in hapa nets at different stocking densitiesAuthor(s):
Damaso MF and Argente FATAbstract:
Sea cucumbers are high value marine species with very high potential in aquaculture as profitable industry. Depletion of this species in the past years prompted researchers to indulge into various researches to maximize aquaculture opportunities of this species. In this study, sea cucumbers were subjected to ocean rearing to compare the survival and growth performance at different stocking densities arranged following the Randomized Complete Blocked Design. This focused on the growth performance and survival of Sea cucumber Holothuria scabra
early juveniles reared in hapa
nets at 250 ind m -3
, 500 ind m -3, and 750 ind m -3, respectively.
Results of the study revealed that Treatment I (250 ind m-3) obtained the highest growth and survival showing significantly difference (p<0.05) at the end of the culture (Day 42). Water parameters were recorded suggest that the early juveniles were exposed at the same environmental conditions while species composition and densities of food present were the same in each sampling period suggesting that the early juveniles were exposed to the same quantity and quality of food. Cost and benefit analysis showed that rearing of early juveniles in hapa nets reduced the cost and labor compared to rearing in tanks. Results further suggest that in ocean rearing of Holothuria scabra, the lower the stocking density the higher the growth rates of the species. It further shows that ocean rearing using hapa nets are profitable way of growing sea cucumbers compared in tanks. Thus, this study promotes hapa net rearing as an adaptable way of aquaculture technology. Pages: 253-257 | 341 Views 23 DownloadsDownload Full Article:
How to cite this article:
Damaso MF, Argente FAT. Ocean nursery rearing of sea cucumber Holothuria scabra early juveniles in hapa nets at different stocking densities. Int J Fish Aquat Stud 2019;7(4):253-257.