Journal of Marine Biology & Oceanography ISSN: 2324-8661

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Research Article, J Mar Biol Oceanogr Vol: 5 Issue: 1

Fishery Analysis of Mugil cephalus in Central Mexican Pacific

Manuel Gallardo-Cabello1, Elaine Espino-Barr2*, Arturo Garcia-Boa2 and Marcos Puente-Gómez2
1Instituto de Ciencias del Mar y Limnología. Universidad Nacional Autónoma de México. Av. Ciudad Universitaria 3000, Col. Copilco, México
2INAPESCA, CRIP-Manzanillo. Playa Ventanas s/n, Manzanillo, Colima, Mexico
Corresponding author :Elaine Espino-Barr
INAPESCA, CRIP-Manzanillo. Playa Ventanas s/n, Manzanillo, Colima, México
Tel: 52 (314) 332 3750
E-mail: [email protected]
Received: February 15, 2016 Accepted: March 28, 2016 Published: April 04,2016
Citation: Gallardo-Cabello M, Espino-Barr E, Garcia-Boa A, Puente-Gómez M (2016) Fishery Analysis of Mugil cephalus in Central Mexican Pacific Coast. J Mar Biol Oceanogr 5:1.doi:10.4172/2324-8661.1000151

Abstract

The analysis of fishery parameters of the main species captured in México are important, management strategies and normativity can be established, to regulate the fishery and avoid overexploitation. Specimens for this study were obtained from the commercial fishery in the Cuyutlán Lagoon, Colima, and in Cruz de Loreto Lagoon, Jalisco, México. Samples were obtained from August to December 2007, January to March 2008 and November 2012 to October 2013. Captures of M. cephalus were higher in the coasts of Colima than in Jalisco. Recruitment length was L0.25=34 cm and first capture length was L0.50=39 cm in Colima; in Jalisco these lengths were L0.25=30cm and L0.50=33 cm, respectively. Total mortality for ages 13 to 23 years was Z=0.474 and the survival rate was S=0.625. Natural mortality rate was M=0.127 for the species, M=0.091 for males and M=1.22 for females. Fishing mortality was F=0.343. Increasing the age of first capture from Tc=6.5 years to Tc=8 years, the yield per recruit will increase from y/r=454.5g to y/r=491.1 g with a value of F=2.0. Results on natural mortality rate (M) were compared to those of other authors in other geographic areas in México and the world, finding differences probably due to climate, genetic and latitudinal position, as well as to the fishing pressure. M. cephalus is a species that has to be protected by using the appropriate fishing gear; a generalized use of the 4 inch mesh size would increase recruitment and yield per recruit of this fishery.

Keywords: Production; Recruitment; First capture age; Mortality; Exploitation rate; Yield per recruit; Mugil cephalus

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