TY - JOUR
T1 - Biomass and distribution of the jumbo squid (Dosidicus gigas; d'Orbigny, 1835) in the Gulf of California, Mexico
AU - Nevárez-Martínez, Manuel O.
AU - Hernández-Herrera, Agustín
AU - Morales-Bojórquez, Enrique
AU - Balmori-Ramírez, Alejandro
AU - Cisneros-Mata, Miguel A.
AU - Morales-Azpeitia, Rufino
PY - 2000
Y1 - 2000
N2 - 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°10'-28°50'N and 109°30'-112°45'W. At each station, fishing was done by using attraction of light and jigs with six rings of barbless hooks. Biomass was estimated by stratified 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°and 28°30'N and lower catch along the coast of Sonora, south of 27°N. There was no relationship between biomass, distribution, and water temperature from surface to 70 m depth. (C) 2000 Elsevier Science B.V.
AB - 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°10'-28°50'N and 109°30'-112°45'W. At each station, fishing was done by using attraction of light and jigs with six rings of barbless hooks. Biomass was estimated by stratified 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°and 28°30'N and lower catch along the coast of Sonora, south of 27°N. There was no relationship between biomass, distribution, and water temperature from surface to 70 m depth. (C) 2000 Elsevier Science B.V.
KW - Biomass
KW - Cephalopoda
KW - Distribution
KW - Dosidicus gigas
KW - Jumbo squid
UR - http://www.scopus.com/inward/record.url?scp=0033637781&partnerID=8YFLogxK
U2 - 10.1016/S0165-7836(00)00198-3
DO - 10.1016/S0165-7836(00)00198-3
M3 - Artículo
SN - 0165-7836
VL - 49
SP - 129
EP - 140
JO - Fisheries Research
JF - Fisheries Research
IS - 2
ER -