Abstract

DREYFUS-LEON, Michel Jules; VACA RODRIGUEZ, Juan Guillermo  and  COMPEAN-JIMENEZ, Guillermo Alberto. Descarte y captura incidental de la flota atunera mexicana menor de 363 tm de capacidad de acarreo en 1996. Hidrobiológica [online]. 2000, vol.10, n.1, pp.25-34. ISSN 0188-8897.

Due to the importance of fishing in a responsible manner, following FAO's Code of Conduct for Responsible Fishing, there is the need to estimate the incidental catch and discard of all fisheries worldwide. The fishing logbooks of the mexican tunaboats with less than 363 metric tons of carrying capacity were analyzed to estimate the level of tuna discards and incidental catches during 1996. Due to the absence of scientific observers aboard, direct and indirect methods were used. The tuna discard estimated varied from 190 to 320 metric tons, and the incidental catch estimate from 146 to 262 metric tons of different species or group of species. The discard estimate represents approximately 1.3 to 1.6% of total catch, and the incidental catch estimate about 1.0 to 1.8%. These levels are low compared to worldwide and other tuna fisheries discard and incidental catch estimates, but the damage they cause to the populations affected are subject to further population dynamic studies.

Keywords : discards; incidental catch; Thunnus albacares; yellowfin tuna.

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