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Titolo:
Review of stock assessment and fishery biology of Dosidicus gigas in the Gulf of California, Mexico
Autore:
Morales-Bojorquez, E; Cisneros-Mata, MA; Nevarez-Martinez, MO; Hernandez-Herrera, A;
Indirizzi:
Ctr Reg Invest Pesquera La Paz, Inst Nacl Pesca, La Paz 23020, Baja California, Mexico Ctr Reg Invest Pesquera La Paz La Paz Baja California Mexico 23020 Mexico
Titolo Testata:
FISHERIES RESEARCH
fascicolo: 1, volume: 54, anno: 2001,
pagine: 83 - 94
SICI:
0165-7836(200112)54:1<83:ROSAAF>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
SQUID; POPULATION; CATCHABILITY;
Keywords:
Dosidicus gigas; Gulf of California; management;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Morales-Bojorquez, E Ctr Reg Invest Pesquera La Paz, Inst Nacl Pesca, Carretera Pichilingue Km 1,, La Paz 23020, Baja California, Mexico Ctr Reg Invest Pesquera La Paz Carretera Pichilingue Km 1, La Paz Baja California Mexico 23020
Citazione:
E. Morales-Bojorquez et al., "Review of stock assessment and fishery biology of Dosidicus gigas in the Gulf of California, Mexico", FISH RES, 54(1), 2001, pp. 83-94

Abstract

Two periods in the Dosidicus gigas fishery in the Gulf of California, Mexico, have been examined. The first was in the early 1980s, when there was a single stock with multiple cohorts and recruitment to the principal fishinggrounds was in May. Management schemes were difficult to establish becauseof the variation in the annual abundance of the cohorts. During 1983, the fishery collapsed; an effect of El Nino was an acceptable hypothesis. The second period began in 1994. Landings increased from 1994 to 1996. During this time there was only one annual cohort in the fishery with recruitment inMay. A management strategy was proposed adopting the stock assessment usedfor Illex argentinus in the Falkland Islands; assuming an annual recruitment, an estimate of the proportional escapement and modelling the catch-per-unit-effort data of the three commercial fleets. Using this approach, the landings in 1997 were 120 000 t. However, in 1998 a decrease in landings occurred, a possible cause could have been the 1998 El Nino. Some aspects of these two periods are discussed, principally showing the differences in the management approach. (C) 2001 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 16/07/20 alle ore 16:44:32