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Diversity and trophic level of ichthyofauna associated with the trawl bycatches of Cuddalore and Parangipettai, south-east coast of India

Published online by Cambridge University Press:  25 May 2015

Purusothaman Sambandamoorthy ,
Jayaprabha Nagamuthu ,
Silambarasan Arumugam  and
Murugesan Perumal
Purusothaman Sambandamoorthy*
Affiliation:
Faculty of Marine Sciences, Centre of Advanced study in Marine biology, Annamalai University, Parangipettai-608502, Tamil Nadu, India
Jayaprabha Nagamuthu
Affiliation:
Faculty of Marine Sciences, Centre of Advanced study in Marine biology, Annamalai University, Parangipettai-608502, Tamil Nadu, India
Silambarasan Arumugam
Affiliation:
Faculty of Marine Sciences, Centre of Advanced study in Marine biology, Annamalai University, Parangipettai-608502, Tamil Nadu, India
Murugesan Perumal
Affiliation:
Faculty of Marine Sciences, Centre of Advanced study in Marine biology, Annamalai University, Parangipettai-608502, Tamil Nadu, India
*
Correspondence should be addressed to: S. Purusothaman, Research Associate (UGC-CPEPA Project), Centre of Advanced study in Marine biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India email: [email protected]
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Abstract

The present study was undertaken to obtain basic information on the diversity and trophic level of trawl bycatch fishes in Cuddalore and Parangipettai coastal waters, south-east coast of India. A total of 123 species of finfishes, belonging to 13 orders, 49 families and 82 genera were recorded in the trawl bycatch of Cuddalore and Parangipettai from January 2009 to December 2010. Among the orders, Perciformes dominated with 22 families, 40 genera and 66 species (53.6%), followed by Clupeiformes, of which there were four families, nine genera and 18 species (14.6%). Regarding the habitat-wise distribution, 50 species (40.6%) were reef associated, 43 (34.9%) were demersal, 19 (15.4%) were pelagic and 11 (8.9%) were benthopelagic. Considering the trophic levels, 5 (4.0%), 8 (6.5%), 41 (33.3%), 49 (39.8%) and 20 species (16.2%) were recorded in the trophic levels of 2.0–2.49, 2.5–2.99, 3.0–3.49, 3.5–3.99 and 4.0–4.5, respectively, in both the coastal waters.

Keywords

Trophic leveldiversitydemersaltrawl bycatchessouth-east coast of India
Type
Research Article
Information
Marine Biodiversity Records , Volume 8 , 2015 , e78
Copyright
Copyright © Marine Biological Association of the United Kingdom 2015 

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