MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
artículos
Título:
Linking population trends of Antarctic shag (Phalacrocorax bransfieldensis) and fish at Nelson Island, South Shetland Islands
Autor/es:
BARRERA-ORO E.; CASAUX R,
Revista:
POLAR BIOLOGY
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2016 vol. 39 p. 1491 - 1491
ISSN:
0722-4060
Resumen:
Abstract This study analyses and relates long term information on population trends ofinshore demersal fish and Antarctic shags of the South Shetland Islands. Theanalysis is complemented with comparable information on diet, foraging patternsand breeding output of shags from the Danco Coast, western Antarctic Peninsula,an area that has remained out of the influence of the commercial fishery. A declining trend observed in shag colonies at theSouth Shetland Islands in the decades of 1990 and 2000 may have been influencedto some extent by the concomitant decrease in the abundance of two of theirmain preys, the nototheniids Nototheniarossii and Gobionotothen gibberifrons,owed to the intensive industrial fishing in the area in the late 1970s.