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

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Relation http://eprints.cmfri.org.in/9602/
 
Title Observations on fishery and biology of yellowfin tuna Thunnus albacares
(Bonnaterre, 1788) from Lakshadweep waters
 
Creator Koya, K P Said
Ganga, U
Jayasankar, J
Gireesh, R
Retheesh, T B
Thangaraja, R
Abdussamad, E M
 
Subject Fishery biology
Tuna fisheries
 
Description 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.
 
Date 2013
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/9602/1/8.pdf
Koya, K P Said and Ganga, U and Jayasankar, J and Gireesh, R and Retheesh, T B and Thangaraja, R and Abdussamad, E M (2013) Observations on fishery and biology of yellowfin tuna Thunnus albacares (Bonnaterre, 1788) from Lakshadweep waters. Indian Journal of Fisheries, 60 (3). pp. 119-122.