Record Details

Feeding strategies and diet composition of yellowfin tuna Thunnus albacares (Bonnaterre, 1788) caught along Andhra Pradesh, east coast of India

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/7813/
 
Title Feeding strategies and diet composition of yellowfin tuna Thunnus albacares
(Bonnaterre, 1788) caught along Andhra Pradesh, east coast of India
 
Creator Rohit, Prathibha
Rao, G Syda
Ram Mohan, K
 
Subject Fish Nutrition
Fish Biotechnology
 
Description The food of yellowfin tuna, Thunnus albacares caught by longlines off the east coast of India was studied in detail. Contents
of 146 non-empty stomachs were analysed for the Index of relative importance (IRI) and prey specific abundance. T. albacares
caught by the longline were found to be non-selective generalist feeders, foraging on micronektonic, pelagic or benthic
organisms available in the epipelagic waters. Teleost fish, crabs, squids and shrimps were the major component of food
items. Priacanthus hamrur was the most preyed upon fish with a high IRI (40.5%) followed by the swimming crab
Charybdis smithii (23.9%), the squid Sthenoteuthis oualaniensis (15.5%) and prawn Solenocera hextii (10.3%). Being a
large pelagic predator, it formed an important link in the food chain of the ocean system and also formed a good collector of
the less exploited micronekton organisms of the deep scattering layer (DSL).
 
Publisher CMFRI/ICAR
 
Date 2010
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7813/1/Prathibha_Rohit.pdf
Rohit, Prathibha and Rao, G Syda and Ram Mohan, K (2010) Feeding strategies and diet composition of yellowfin tuna Thunnus albacares (Bonnaterre, 1788) caught along Andhra Pradesh, east coast of India. Indian Journal of Fisheries, 57 (4). pp. 13-19.