Author:
Abidin N A,Shaleh S R Muhamad,Ching F F,Othman R,Manjaji-Matsumoto M,Mustafa S,Senoo S
Abstract
Abstract
Overexploitation of sea cucumbers especially Holothurians is not a new issue, as this species has been highly demanded and traded at high price in Asian dried seafood market. As the wild seed supply has shown a substantial decline, hatchery production is urgently needed to supply the aquaculture industry. However, many are still struggling with the larviculture of Holothuria scabra. In this study, suitable diet (Nannochloropsis sp., Chaetoceros calcitrans and combined diet) and stocking density (1, 1.5 and 2 larvae ml−1) for H. scabra larvae are tested in a factorial experiment. The experiment was carried out in plastic containers randomly arranged in a water bath at temperature 29-30°C. Result shows that, there was a strong interaction between diets and stocking density on the growth of the larvae (p=0.000). Single species of Nannochloropsis sp. at 1.5 larvae ml−1 demonstrated the highest growth (109.69± 8.21). On the other hand, single species of C. calcitrans also at 1.5 larvae ml−1 enhanced the metamorphosis of auricularia into doliolaria stage. However, the survival rate was not significantly affected by the diets and stocking density (p= 0.974) although single species of Nannochloropsis sp. at 2 larvae ml−1 has the highest survival (1.2±1.05). For a stocking density of 1.5 larvae ml−1, it is recommended to feed the larvae with Nannochloropsis sp. and C. calcitrans for higher growth and faster metamorphosis, respectively.
Subject
General Physics and Astronomy
Reference36 articles.
1. Spawning and larval rearing of the sea cucumber Holothuria (Theelothuria) spinifera Theel;Asha;SPC Beche-de-mer Information Bulletin,2002
2. Effects of single and combined microalgae on larval growth, development and survival of the commercial sea cucumber Holothuria spinifera Theel;Asha;Aquaculture Research,2006
3. Effects of Stocking Density on the Hatching Rate, Larval and Early Juvenile Rearing of Edible Sea Cucumber Holothuria scabra (Jaeger, 1883);Asha;Indian Journal of Geo-Marine Sciences,2013
4. Sea cucumber fisheries and trade in Malaysia;Baine,1999
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