INVESTIGADORES
CASAUX Ricardo Jorge
congresos y reuniones científicas
Título:
Preliminary information on inshore demersal fish from the Danco Coast, Antarctic Peninsula, in the 1999/00 summer season
Autor/es:
CASAUX R,; BARRERA-ORO E.; BARONI A.; RAMÓN A.
Reunión:
Workshop; The CCAMLR Fish Stock Assessment Working Group; 2000
Resumen:
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, in the summer season
of 2000. The families Nototheniidae, Channichthyidae and Bathydraconidae were
represented being Notothenia coriiceps
the dominant fish of the area. Gobionotothen
gibberifrons and Trematomus newnesi
followed in importance. In general, the ichthyofauna 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
reproduction and diet of the fish species caught are provided. The diet
analysis showed general agreement on the feeding types and feeding behaviour of
these fish species in other areas.