| dc.creator |
Yussuf, Yussuf S. |
|
| dc.creator |
Yahya, Saleh A. |
|
| dc.date |
2021-05-20T08:07:24Z |
|
| dc.date |
2021-05-20T08:07:24Z |
|
| dc.date |
2020 |
|
| dc.date.accessioned |
2022-10-20T13:09:28Z |
|
| dc.date.available |
2022-10-20T13:09:28Z |
|
| dc.identifier |
Yussuf, Y. S., & Yahya, S. A. (2020). Size-distribution and length-weight relationship of a deep-water population of Holothuria scabra (Jaeger, 1833) in Zanzibar, Tanzania. Western Indian Ocean Journal of Marine Science, 19(1), 113-121. |
|
| dc.identifier |
DOI: https://doi.org/10.4314/wiojms.v19i1.9 |
|
| dc.identifier |
http://hdl.handle.net/20.500.12661/3154 |
|
| dc.identifier.uri |
http://hdl.handle.net/20.500.12661/3154 |
|
| dc.description |
Abstract. Full text article available at https://doi.org/10.4314/wiojms.v19i1.9 |
|
| dc.description |
A study was carried out on the size distribution, length-weight relationship and condition factor of a deep-water population of the commercially important tropical sea cucumber Holothuria scabra in Zanzibar, Tanzania. Samples were collected from fishers and supplementary information gathered. The deep water (15-20 m) population of H. scabra is dominated by large sized individuals that have already attained maturity. There was no significant difference in size between male and female individuals (p>0.05). The sex ratio in this population significantly differed from 1:1 in favour of male individuals (p=0.01). The results showed significant correlation between length and weight for male, female, indeterminate individuals, and pooled data, with r values of 0.681, 0.794, 0.821 and 0.680, respectively. Moreover, the b-value for male, female, indeterminate individuals and pooled data was 1.288, 1.439, 1.686 and 1.407 respectively, which revealed that individuals of deep-water H. scabra exhibit negative allometric growth. The mean condition factor (K) value when all data were pooled together was 4.213±0.106 indicating that individuals were in good condition and came from a healthy environment. This study fills a key information gap that is relevant to the management of the H. scabra fishery in the country. |
|
| dc.language |
en |
|
| dc.publisher |
Western Indian Ocean Marine Science Association |
|
| dc.subject |
Holothuria scabra |
|
| dc.subject |
Size distribution |
|
| dc.subject |
Length-weight relationship |
|
| dc.subject |
Condition factor |
|
| dc.subject |
Allometric growth |
|
| dc.subject |
Zanzibar |
|
| dc.subject |
Tropical sea |
|
| dc.subject |
Sea cucumber |
|
| dc.subject |
Holothuria scabra |
|
| dc.title |
Size-distribution and length-weight relationship of a deep-water population of Holothuria scabra (Jaeger, 1833) in Zanzibar, Tanzania |
|
| dc.type |
Article |
|