%0 Conference Proceedings
%9 ACTI : Communications avec actes dans un congrès international
%A Chassot, Emmanuel
%A Delgado de Molina, A.
%A Assan, C.
%A Lucas, J.
%A Dewals, Patrice
%A Cauquil, Pascal
%A Rahombanjanahary, D.M.
%A Soto, M.
%A Floch, Laurent
%T Statistics of the European Union and associated flags purse seine fishing fleet targeting tropical tunas in the Indian Ocean 1981-2013
%S 16ème groupe de travail sur les thons tropicaux
%C Victoria
%D 2014
%L fdi:010063283
%G ENG
%I CTOI
%K OCEAN INDIEN ; EUROPE
%N IOTC-2014-WPTT16-13
%P 29
%U https://www.documentation.ird.fr/hor/fdi:010063283
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-01/010063283.pdf
%W Horizon (IRD)
%X In 2013, the European and associated flags (EAF) purse seine fishing fleet of the Indian Ocean was composed of 35 vessels of individual capacity >800 t, which all represented a total carrying capacity >45,000 t of tuna. The total cumulated nominal effort exerted during the year was about 10,000 and 8,000 fishing and searching days, respectively. The EAF purse seiners cumulated a total of more than 9,300 fishing sets, with 80% made on FAD-associated schools (FAD) and 20% realised on free-swwiming schools (FSC). The total annual landings of the principal market tunas by the French purse seine fishing fleet increased by 20% between 2012 and 2013 and reached more than 270,000 t. The landings were composed of about 49%, 42%, and 9% yellowfin, skipjack, and bigeye, respectively. Total catches on FAD-associated schools increased from 150,000 t in 2012 to about 225,000 t in 2013 (+50%) while catches on FSC substantially decreased from 78,000 t to about 45,000 t (-43%). The percentage of yellowfin in the FAD catch has steadily increased over the recent years from about 25% during 2006-2009 to more than 40% in 2012-2013. The catch of skipjack per positive set on FAD- associated schools has strongly decreased since the early 2000s, from >30 t set-1 in 2002-2003 to <17 t-1 in 2012-2013. By contrast, the catch of yellowfin per FAD positive set has increased from low values of about 7.3 t set−1 during 2007-2009 to almost 15 t set-1 in 2013. The catch of yellowfin in free-swimming schools was at high levels (>30 t set -1) in 2012-2013.
%B GTTT : Groupe de Travail sur les Thons Tropicaux
%8 2014/11/15-19
%$ 040