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Estimation of maximum sustainable yield of Gelidium robustum seaweed fishery in Mexico

Published online by Cambridge University Press:  27 June 2005

M. Casas-Valdez ,
D. Lluch-Belda ,
S. Ortega-García ,
S. Hernández-Vázquez ,
E. Serviere-Zaragoza  and
D. Lora-Sánchez
M. Casas-Valdez
Affiliation:
Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional, Apartado (de Correos) Postal 592, La Paz, B.C.S. 23000, Mexico
D. Lluch-Belda
Affiliation:
Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional, Apartado (de Correos) Postal 592, La Paz, B.C.S. 23000, Mexico
S. Ortega-García
Affiliation:
Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional, Apartado (de Correos) Postal 592, La Paz, B.C.S. 23000, Mexico
S. Hernández-Vázquez
Affiliation:
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Apartado (de Correos) Postal 128, La Paz, B.C.S. 23000, Mexico
E. Serviere-Zaragoza
Affiliation:
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Apartado (de Correos) Postal 128, La Paz, B.C.S. 23000, Mexico
D. Lora-Sánchez
Affiliation:
Agarmex, S. A. de C. V., Ensenada, B.C. 22800, Mexico
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Abstract

Surplus production models were used to assess the fishery condition of red seaweed Gelidium robustum off the west coast of the Baja California Peninsula from 1985 to 1997. The maximum sustainable yield and optimum effort estimated by the Schaefer model were 705 tn and 457 teams, while the Fox model estimated 670 tn and 510 teams. The determination coefficients were r2=0·62 for the Fox and r2=0·58 for the Schaefer model. These results suggest that the resource is not overexploited. Fitting the data to Hilborn & Walters' dynamic model was not satisfactory.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 85 , Issue 4 , August 2005 , pp. 775 - 778
Copyright
2005 Marine Biological Association of the United Kingdom

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