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Titolo:
Performance of a bycatch reduction device in the shrimp fishery of the Gulf of California, Mexico
Autore:
Garcia-Caudillo, JM; Cisneros-Mata, MA; Balmori-Ramirez, A;
Indirizzi:
Conservat Int Mexico AC, Programa Golfo Calif, Guaymas 85450, Sonora, Mexico Conservat Int Mexico AC Guaymas Sonora Mexico 85450 85450, Sonora, Mexico Inst Nacl Pesca, Ctr Reg Invest Pesquera, Guaymas 85400, Sonora, Mexico Inst Nacl Pesca Guaymas Sonora Mexico 85400 Guaymas 85400, Sonora, Mexico
Titolo Testata:
BIOLOGICAL CONSERVATION
fascicolo: 2, volume: 92, anno: 2000,
pagine: 199 - 205
SICI:
0006-3207(200002)92:2<199:POABRD>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Garcia-Caudillo, JM Conservat Int Mexico AC, Programa Golfo Calif, Miramar59-A, Guaymas 85450, Sonora, Mexico Conservat Int Mexico AC Miramar 59-A Guaymas Sonora Mexico 85450
Citazione:
J.M. Garcia-Caudillo et al., "Performance of a bycatch reduction device in the shrimp fishery of the Gulf of California, Mexico", BIOL CONSER, 92(2), 2000, pp. 199-205

Abstract

Although shrimp fisheries are of great economic importance worldwide, theyproduce serious ecological disturbances and affect other resource harvesting activities such as small-scale fisheries. We tested performance of the Square Mesh/Extended Funnel bycatch reduction device (BRD) in the bottom trawl shrimp fishery of the Gulf of California. Efficiency of the BRD was determined under controlled conditions in terms of exclusion rate of fish bycatch, shrimp-capture loss and exclusion of certain fish species selected as indicators. Average exclusion rate for finfish species was 37% and that for shrimp, 7%. Total bycatch was decreased by 40% in comparison to the controltrawl (no BRD). Extrapolation of this result to the entire commercial fleet suggests that BRD use would allow the exclusion of 73 thousand tons of bycatch per year in the Gulf. Their use would also help the recovery of certain endangered species, such as Totoaba macdonaldi. For this endemic fish, the exclusion rate of juveniles in our trials was 81%. An economic analysis showed that with a shrimp-capture loss of 7%, an average shrimp boat will continue to realize profits, but that opportunity costs could make this typeof shrimping financially unattractive. (C) 2000 Elsevier Science Ltd. 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 21:13:26