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Tuna drift gillnet fishery at Chennai, Tamil Nadu- an update

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Relation http://eprints.cmfri.org.in/14242/
http://mbai.org.in/php/journaldload.php?id=2520&bkid=123
doi:10.6024/jmbai.2019.61.2.2066-06
 
Title Tuna drift gillnet fishery at Chennai,
Tamil Nadu- an update
 
Creator Sivadas, M
Abdussamad, E M
Margaret Muthu Rathinam, A
Mohan, S
Vasu, P
Laxmilatha, P
 
Subject Tuna fisheries
Crafts & Gear
 
Description The present study describes the status of multiday drift gillnet fishery
for tuna from Chennai fishing harbour based on data for the years
2016 – 2017. The data is also compared with that during 1999-
2006. Both the craft and gear increased in size with consequent
extension of fishing grounds and increase in the number of days/
fishing trip. The size of the boats increased to 20-23 m OAL from
11-12 m OAL and weight of the gear from 1 to more than 6 t.
Annual average catch increased to 8523 t during 2016-2017 from
595 t during 1999-2006. Average catch per unit effort was 8310 kg
as against 730 kg during 1999-2006. Yellowfin tuna, Thunnus
albacares and Skipjack tuna, Katsuwonus pelamis were the dominant
species. The stock position of skipjack tuna and yellowfin tuna vis-àvis
the three indicators indicated that the percentage of mature
yellowfin tuna in the catch in 2017 was 68%, fish in optimum length
35% and mega-spawners 33% whereas in skipjack tuna the
respective percentages were 99.5, 21.1 and 79.1. Problems and
prospects of multiday tuna drift gillnet fishery are also discussed.
 
Publisher MBAI, Cochin-14
 
Date 2019
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/14242/1/JMBAI_2019_Sivadas%20M_Tuna%20drift%20gillnet%20fishery%20at%20Chennai%2C%20Tamil%20Nadu.pdf
Sivadas, M and Abdussamad, E M and Margaret Muthu Rathinam, A and Mohan, S and Vasu, P and Laxmilatha, P (2019) Tuna drift gillnet fishery at Chennai, Tamil Nadu- an update. Journal of the Marine Biological Association of India, 61 (2). pp. 41-46.