Citation
Militz Thane, . and Leini Esther, . and Southgate Paul, . Evaluation of hatchery production from captive and wild-caught sandfish (Holothuria scabra Jaeger 1833) broodstocks. pp. 64-71. ISSN 0116-6514
Abstract
The overexploitation of natural populations of sea cucumbers is a threat to the sustainability of sea cucumber aquaculture operations reliant on wild-caught broodstocks. Maintaining wild-caught broodstocks in captivity ensures continuous availability of suitable broodstocks. However it remains unclear if captive broodstocks are suitable for use in hatchery production. This study evaluates hatchery production of sandfish (Holothuria scabra Jaeger 1833) using captive broodstock maintained in a pond for 1 year compared to newly wild-caught broodstock. At the end of the 40-day hatchery cycle lengths of juvenile sandfish resulting from the wild-caught (3.26 0.13 mm) and captive (3.28 0.16 mm) broodstocks were comparable (P 0.92). Survival curves of larval and juvenile sandfish differed between the two broodstock sources (P 0.01) owing to differences in the onset of exponential mortality. However survival was comparable for juvenile sandfish derived from the wild-caught (1.23 0.27 ) and captive (1.34 0.73 ) broodstocks (P 0.89) at the end of the hatchery cycle (40-days post-fertilisation). The results of the present study demonstrate that captive sandfish broodstock supported hatchery production comparable to that of wild-caught broodstock.
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Abstract
The overexploitation of natural populations of sea cucumbers is a threat to the sustainability of sea cucumber aquaculture operations reliant on wild-caught broodstocks. Maintaining wild-caught broodstocks in captivity ensures continuous availability of suitable broodstocks. However it remains unclear if captive broodstocks are suitable for use in hatchery production. This study evaluates hatchery production of sandfish (Holothuria scabra Jaeger 1833) using captive broodstock maintained in a pond for 1 year compared to newly wild-caught broodstock. At the end of the 40-day hatchery cycle lengths of juvenile sandfish resulting from the wild-caught (3.26 0.13 mm) and captive (3.28 0.16 mm) broodstocks were comparable (P 0.92). Survival curves of larval and juvenile sandfish differed between the two broodstock sources (P 0.01) owing to differences in the onset of exponential mortality. However survival was comparable for juvenile sandfish derived from the wild-caught (1.23 0.27 ) and captive (1.34 0.73 ) broodstocks (P 0.89) at the end of the hatchery cycle (40-days post-fertilisation). The results of the present study demonstrate that captive sandfish broodstock supported hatchery production comparable to that of wild-caught broodstock.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Holothuria scabra |
| AGROVOC Term: | Holothuriidae |
| AGROVOC Term: | Sea cucumbers |
| AGROVOC Term: | Aquaculture |
| AGROVOC Term: | Animal breeding |
| AGROVOC Term: | Hatcheries |
| AGROVOC Term: | Breeding stock |
| AGROVOC Term: | Fish larvae |
| AGROVOC Term: | Controlled environment |
| AGROVOC Term: | Mortality |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:54 |
| URI: | http://webagris.upm.edu.my/id/eprint/8115 |
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