科研之友
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摘要
Se analiza la composici車n de las capturas de la familia Channichthyidae en aguas mesopel芍gicas del talud de la isla Georgia del Sur, Ant芍rtica. Las tres especies de esta familia capturadas en el sector constituyen el 12% de las especies identificadas y el 37% de la captura total. Champsocephalus gunnari y Chaenocephalus aceratus aportan el 95% de las capturas de Channichthyidae, mientras que Pseudochaenichthys georgianus aporta el 5%. Durante la temporada estival 2004-2005, se encontr車 un predominio de grupos con alto grado de endemismo en el Oc谷ano Austral, representados por Myctophiidae, Nototheniidae, Channichthyidae y Bathydraconidae, que en conjunto constituyeron m芍s del 62% de las especies 赤cticas del sector, frente a un 38% de especies cosmopolitas. El aporte por familia mostr車 un predominio de Myctophiidae, Channichthyidae, Gempylidae y Nototheniidae, con el 98% de las capturas, frente al 2% correspondiente a peces cosmopolitas The catch composition of Channichthyidae family in mesopelagic water over the slope of South Georgia Island, Antarctica, is analized. Three species from this family were detected in the sector, represent 12% of total ichthyic diversity and 37% of total ichthyic cathes. Champsocephalus gunnari and Chaenocephalus aceratus made up 95% of Channichthyidae cathes, and Pseudochaenichthys georgianus made up the other 5%. In the summer of 2004-2005, groups that are highly endemic to the southern oceans predominated. These were Myctophiidae, Nototheniidae, Channichthyidae and Bathydraconidae. Together these families represented more than 62% of the ichthyic diversity in the sector, the 38% were cosmopolitan fish. The contribution of each family showed that Myctophiidae, Channichthyidae, Gempylidae and Nototheniidae, predominated, making up 98% of the ichthyic catches, with the remaining 2% being cosmopolitan fish
