Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean

Carreón Zapiain, M. T. y Favela Lara, Susana y González Pérez, J. O. y Tavares, R. y Leija Tristán, Antonio y Mercado Hernández, Roberto y Compeán Jiménez, G. A. (2018) Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean. Marine and Coastal Fisheries, 10 (4). pp. 402-410. ISSN 19425120

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URL o página oficial: http://doi.org/10.1002/mcf2.10029

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Abstract Basic population parameters such as age, size, and distribution have been poorly evaluated for the Shortfin Mako Isurus oxyrinchus in the Mexican Pacific Ocean. According to data collected by scientific observers on board medium-size fishing vessels during the period of 2006–2013, size as TL was obtained for 5,740 individual sharks. The range of TL was 70–362 cm for females and 71–296 cm for males. Weight (W), measured randomly from 1,409 individuals, ranged from 2 to 90 kg for females and from 2 to 80 kg for males. The weight-to-TL ratio was best fitted by the equation W = 4 × 10−5(TL)2.59 (r2 = 0.6532). No sex-specific difference was found in the weight-to-TL relationship between males and females, nor in W or TL separately. By using the inverse von Bertalanffy equation and parameters described by other authors for the same study area, we determined the age range for individuals captured on the basis of their TL. The age ranged from 0 to 39 years in females and from 0 to 21 years in males. Using a logistic model, the mean length at sexual maturity was obtained for 2,532 males (TL = 190 cm). The quarterly distribution of young of the year and 1-year-old juveniles showed that there is a tendency for these sharks to move

Tipo de elemento: Article
Divisiones: Ciencias Biológicas
Usuario depositante: Lic. Josimar Pulido
Creadores:
CreadorEmailORCID
Carreón Zapiain, M. T.NO ESPECIFICADONO ESPECIFICADO
Favela Lara, SusanaNO ESPECIFICADONO ESPECIFICADO
González Pérez, J. O.NO ESPECIFICADONO ESPECIFICADO
Tavares, R.NO ESPECIFICADONO ESPECIFICADO
Leija Tristán, AntonioNO ESPECIFICADONO ESPECIFICADO
Mercado Hernández, RobertoNO ESPECIFICADONO ESPECIFICADO
Compeán Jiménez, G. A.NO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 27 Jun 2019 20:44
Última modificación: 29 Ago 2019 16:11
URI: http://eprints.uanl.mx/id/eprint/16120

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