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MJ Dreyfus-León ; E Almanza-Heredia ; JAE Almanza-Heredia ;Ciencias Marinas 2010, 36 (1)

Autor: K Xolaltenco-Coyotl

Fuente: http://www.redalyc.org/


Introducción



Ciencias Marinas ISSN: 0185-3880 cmarinas@uabc.mx Universidad Autónoma de Baja California México Xolaltenco-Coyotl, K; Dreyfus-León, MJ; Almanza-Heredia, E; Almanza-Heredia, JAE Analysis of the fishing effort of the Mexican longline tuna fleet operating in the Gulf of Mexico in 2004 Ciencias Marinas, vol.
36, núm.
1, 2010, pp.
59-70 Universidad Autónoma de Baja California Ensenada, México Available in: http:--www.redalyc.org-articulo.oa?id=48013190006 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Ciencias Marinas (2010), 36(1): 59–70 Analysis of the fishing effort of the Mexican longline tuna fleet operating in the Gulf of Mexico in 2004 C M Análisis del esfuerzo pesquero con palangre de la flota atunera mexicana del Golfo de México durante 2004 K Xolaltenco-Coyotl1, MJ Dreyfus-León1, 2*, E Almanza-Heredia1, JAE Almanza-Heredia1 1 2 Facultad de Ciencias Marinas, Universidad Autónoma de Baja California, Km 103 Carretera Tijuana-Ensenada, Ensenada, CP 22860, México. Instituto Nacional de la Pesca, Ensenada, Baja California, México.
*E-mail: dreyfus@cicese.mx ABSTRACT.
The Gulf of Mexico yellowfin tuna (YFT) longline fishing effort for 2004 was analyzed.
The data used to describe the longline characteristics and estimate the catch efficiency of the vessels (catch in number of organisms per trip) were obtained from fishing reports made by onboard scientific observers from the Mexican Tuna Exploitation and Dolphin Protection Program, covering 100% of the trips.
To compare the catch per trip and determine the main aspects influencing it, generalized linear models were applied.
To explain differences in efficiency, the following explanatory variables were considered: boat, bait, equipment, area, trimester, type of...





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