INVESTIGADORES
CASAUX Ricardo Jorge
artículos
Título:
Ecology of inshore notothenioid fish from the Danco Coast, Antarctic Peninsula.
Autor/es:
CASAUX RICARDO; BARRERA-ORO ESTEBAN; BARONI ANDREA; RAMÓN ANALÍA
Revista:
POLAR BIOLOGY
Referencias:
Año: 2003 vol. 26 p. 157 - 165
ISSN:
0722-4060
Resumen:
Abstract
A total of 1103 inshore notothenioid fish were caught by means of
trammel-nets in four sites surrounding Cierva Point (Moss Island 1; Moss Island
2; Sterneck Island and Leopardo Island), Danco Coast, West Antarctic Peninsula,
during February and March 2000. The families Nototheniidae, Channichthyidae and
Bathydraconidae were represented in the samples being Notothenia coriiceps the dominant fish of the area. Gobionotothen gibberifrons and Trematomus newnesi followed in
importance. In general, the fish sampled agreed in terms of number and mass with that of the South Shetland
Islands area, except for a marked higher occurrence of G. gibberifrons in the Danco Coast. This supports the hypothesis
that the commercial fishery around the South Shetland Islands at the end of the
1970s was responsible for the decrease in the inshore population of G. gibberifrons in that area during the
last seventeen years. Information on morphometry, reproduction and diet of the
fish species caught is provided.