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Field identification of yellowfin and bigeye tuna

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Relation http://eprints.cmfri.org.in/11372/
 
Title Field identification of yellowfin and bigeye tuna
 
Creator Roul, Subal Kumar
Retheesh, B
Prakasan, D
Abdussamad, E M
 
Subject Marine Fishing
Tuna fisheries
 
Description Tunas are commercially important food fishes
exploited from all the world oceans. Of the 9 species
contributing to the Indian tuna fisheries, yellowfin
and bigeye tuna grow to big sizes, and with superior
meat quality have high export demand.
Identification of these tuna species are
comparatively easier in fresh condition than the iced
or frozen condition due to discolouration, fin and
skin damage during handling and storage process.
In such cases certain internal characteristics such
as length of air bladder, liver shape and striation
are used. Misidentification of yellowfin and bigeye
tunas occurs in several cases. The present study is
based on field observations at Cochin Fisheries
Harbour and uses an easy field identification key
for yellowfin and bigeye tuna based on external
characteristics developed by Itano (2005) and IOTC
(2013). Bigeye tuna are landed stray numbers along
with yellowfin tunas, at Cochin Fisheries Harbour.
 
Publisher Central Marine Fisheries Research Institute
 
Date 2016
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/11372/1/MFIS%20227_5.pdf
Roul, Subal Kumar and Retheesh, B and Prakasan, D and Abdussamad, E M (2016) Field identification of yellowfin and bigeye tuna. Marine Fisheries Information Service; Technical and Extension Series (227). pp. 14-16. ISSN 0254-380 X