Ecology of Antarctic Fish in the Scotia Arc. Project No. 23 2002-2004

ENGLISH

This project deals with different aspects of the ecology (trophic position,
reproduction, age and growth) of the Antarctic ichthyofauna in the Scotia Arc
(South Georgia Islands, South Orkney Islands, South Shetland Islands and west
Antarctic Peninsula). The fish species studied belong to the endemic Antarctic
Suborder Notothenioidei; most of them have been or are presently object of
commercial exploitation. These are the patagonian toothfish Dissostichus
eleginoides, the mackerel ice fish Champsocephalus gunnari and the Antarctic
cods Notothenia rossii, Gobionotothen gibberifrons and N. coriiceps, among
others. Monitoring of demersal fish at inshore sites of the South Shetland
Islands, to evaluate the impact of the former offshore commercial fishery in
the area in the late 1970s. Effect of long term shore-based sampling programs
on near-shore fish populations. Scope of the project is in line with the aim of
the Convention on the Conservation of Antarctic Marine Living Resources
(CCAMLR).

SPANISH

Ecologia de peces antarticos del Arco de Scotia (Islas Georgias del Sur,
Orcadas del Sur y Peninsula Antartica), Proyecto No. 23 2002-2004

El principal tema de estudio es Ecologia general (trofica-reproduccion-edad y
crecimiento) de especies icticolas antarticas de importancia comercial presente
o futura en el Arco de Scotia (Islas Georgias del Sur, Orcadas del Sur y
Peninsula Antartica), tales como Dissostichus eleginoides (merluza negra),
Champsocephalus gunnari (pez de hielo), Notothenia rossii, N. Coriiceps,
Gobionotothen gibberifrons (bacalaos antarticos) y otras. Monitoreo de
abundancia de peces demersales costeros del area de las Islas Shetland del Sur
y Peninsula Antartica. Estudio del impacto de la pesca comercial que se
realizara historicamente en la decada de los anos 70 en aguas offshore del area
mencionada sobre peces demersales costeros. Aplicacion a la explotacion
racional y conservacion de las especies segun el programa de investigaci?n de
la Comision para la Conservacion de los Recursos Vivos Marinos Antarticos
(CCRVMA).