Abundancia poblacional del calamar gigante (Dosidicus gigas) en las costas de Sonora, Mexico

Translated title of the contribution: Population abundance of the giant squid (Dosidicus gigas) from the coast of Sonora, Mexico

E. Morales Bojórquez, A. Hernández Herrera, M. O. Nevárez Martínez, A. J. Díaz De Léon Corral, G. I. Rivera Parra, A. Ramos Montiel

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The objective of this study is to determine population abundance of the giant squid Dosidicus gigas in Sonora, Mexico. The weekly information on catch per unit effort (CPUE) was analyzed from October 1995 to March 1996. Estimates were obtained by two methods: a) a non linear method and b) a maximum likelihood method with interaction between different fleets. The results showed an effort increment starting in January 1996, as well as a change in the catch from 100 t to 600 t per week, the CPUE decreased from 15 t to 1.5 t/fishing night. The initial biomass estimated with the non linear method was 146 352 t and with the maximum likelihood method was 80 800 t. The catchability was 4.29 x 10-4 , and 1.49 x 10-5 for vessels and artisanal fleet respectively.

Translated title of the contributionPopulation abundance of the giant squid (Dosidicus gigas) from the coast of Sonora, Mexico
Original languageSpanish
Pages (from-to)89-95
Number of pages7
JournalOceanides
Volume12
Issue number2
StatePublished - Dec 1997
Externally publishedYes

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