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Titolo:
Biomass and distribution of the jumbo squid (Dosidicus gigas; d'Orbigny, 1835) in the Gulf of California, Mexico
Autore:
Nevarez-Martinez, MO; Hernandez-Herrera, A; Morales-Bojorquez, E; Balmori-Ramirez, A; Cisneros-Mata, MA; Morales-Azpeitia, R;
Indirizzi:
Inst Nacl Pesca, Ctr Reg Invest Pesquera, Unidad Guaymas, Guaymas 85400, Sonora, Mexico Inst Nacl Pesca Guaymas Sonora Mexico 85400 Guaymas 85400, Sonora, Mexico
Titolo Testata:
FISHERIES RESEARCH
fascicolo: 2, volume: 49, anno: 2000,
pagine: 129 - 140
SICI:
0165-7836(200012)49:2<129:BADOTJ>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
STOCK ASSESSMENT; MANAGEMENT; FISHERIES; POPULATION; WATERS;
Keywords:
biomass; distribution; jumbo squid; Dosidicus gigas; Cephalopoda;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Nevarez-Martinez, MO Inst Nacl Pesca, Ctr Reg Invest Pesquera, Unidad Guaymas, Calle 20 Sur 605,Col Cantera, Guaymas 85400, Sonora, Mexico Inst Nacl Pesca Calle 20 Sur 605,Col Cantera Guaymas Sonora Mexico 85400
Citazione:
M.O. Nevarez-Martinez et al., "Biomass and distribution of the jumbo squid (Dosidicus gigas; d'Orbigny, 1835) in the Gulf of California, Mexico", FISH RES, 49(2), 2000, pp. 129-140

Abstract

The objective of this study was to estimate the total biomass and distribution of the population of jumbo squid Dosidicus gigas in the Gulf of California and its relation to sea temperature. Data were collected on the R/V BIP XI during a 20-day cruise (16 May to 3 June 1996). The cruise covered a grid of 59 stations within 25 degrees 10'-28 degrees 50'N and 109 degrees 30'-112 degrees 45'W. At each station, fishing was done by using attraction of light and jigs with six rings of barbless hooks. Biomass was estimated bystratified random sampling, and swept area by strata. The first method yielded an estimate of 85 513 metric tons (t), 95% interval of 79 613-93 413 t, and the second method 118 170 t (95% interval of 113 243-123 097 t). Squid were found in almost all the area covered by the cruise, There was a north to south gradient in catch, with the highest catch between 28 degrees and28 degrees 30'N and lower catch along the coast of Sonora, south of 27 degreesN. There was no relationship between biomass, distribution, and water temperature from surface to 70 m depth. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/07/20 alle ore 22:30:52