Comparative distribution and habitat preference of the sea cucumber Holothuria atra Jaeger at protected and unprotected sites inThoothukudi region of Gulf of Mannar, south-east coast of India
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Relation |
http://eprints.cmfri.org.in/10348/
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Title |
Comparative distribution and habitat preference of the sea cucumber Holothuria atra Jaeger at protected and unprotected sites inThoothukudi region of Gulf of Mannar, south-east coast of India |
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Creator |
Asha, P S
Diwakar, K Santhanavalli, G Manisseri, Mary K |
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Subject |
Seacucumber
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Description |
The present study was conducted to understand the density, biomass, size distribution and habitat preference of the holothurian, Holothuria atra, at a protected and an unprotected site in Thoothukudi region of Gulf of Mannar.Water quality and sediment characteristics of these stations were also assessed. At the unprotected station (St. I), comparatively lower numerical density (mean 0.044±0.003 nos.m-2) as well as lower biomass (6.33±0.99 g m-2) of H. atra were observed, rubble constituted the dominant habitat and the population comprised entirely of adult specimens. At the protected station (St. 2), the numerical density varied between 0.17 to 1.43 nos. m-2 and biomass between 12.9 to 161.7 g m-2. Sand constituted the dominant habitat and the population comprised both adults and fission pieces. Significant difference was noticed in the numerical density and biomass between stations (p |
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Date |
2015
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Language |
en
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Identifier |
http://eprints.cmfri.org.in/10348/1/9.pdf
Asha, P S and Diwakar, K and Santhanavalli, G and Manisseri, Mary K (2015) Comparative distribution and habitat preference of the sea cucumber Holothuria atra Jaeger at protected and unprotected sites inThoothukudi region of Gulf of Mannar, south-east coast of India. Indian Journal of Fisheries, 62 (1). pp. 52-57. |
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