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Observations on fishery and biology of yellowfin tuna Thunnus albacares (Bonnaterre, 1788) from Lakshadweep waters

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Title Observations on fishery and biology of yellowfin tuna Thunnus albacares
(Bonnaterre, 1788) from Lakshadweep waters
Not Available
 
Creator Retheesh,T B
Gireesh,R
Jayasankar,J
Koya,K P Said
Ganga,U
Thangaraja,R
Abdussamad,E M
 
Subject Biology
Feeding
Fishery
Lakshadweep
Thunnus albacares
Yellowfin tuna
 
Description Not Available
The yellowfin tuna Thunnus albacares is a high value oceanic resource for which targeted fishing was initiated in 2008 in
Lakshadweep islands. Pole and line, troll line and drift gillnet are the major gears operated in the islands using traditionally
designed mechanised Pablo boats of 25 to 34 feet overall length. Fishing operation is mainly practised during September to
May. The estimated landing of total fish from three islands of Lakshadweep (Minicoy, Androth and Agatti) during
January–December, 2011 was 1555 t, of which tuna contributed 83%. Maximum yellowfin tuna landing was recorded from
Minicoy (84%) followed by Agatti (9 %) and Androth (7%). Smaller sized yellowfin tuna with fork length (FL) measuring
42-46 cm were observed throughout the year. Swarming crab, Charybdis smithii was the dominant food component with
index of relative importance (IRI) of 87.5 followed by Auxis thazard (IRI - 5.3) and Cheilopogon sp. (IRI - 0.8). Since the
inception of the World Bank aided National Agricultural Innovation Project (NAIP) by the Indian Council of Agricultural
Research (ICAR), on ’Developing a value chain for oceanic tunas in Lakshadweep islands’, targeted fishing for yellowfin
tuna has resulted in 37% increase in the landing of this species.
Not Available
 
Date 2021-09-16T09:18:06Z
2021-09-16T09:18:06Z
2013
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63224
 
Language English
 
Relation Not Available