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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/
 
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
 
Creator Asha, P S
Diwakar, K
Santhanavalli, G
Manisseri, Mary K
 
Subject Seacucumber
 
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
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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.