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.
There is no abstract available for this document.
There is no abstract available for this document.
There is no abstract available for this document.
Abstract:
Two previously recorded species, Raja georgiana and Bathyraja meridionalis were recorded as-bycatch on one vessel in the South Georgia toothfish fishery, 2000. One further species could not be identified and was referred to as R. species 1. R. georgiana occurred in shallow water, the other two in deep water. The average catch rate was 0.23 rajids/1000 hooks. Distribution and length at maturity is described, as is the results of initial investigations of age determination using both vertebrae and thorns.
