INVESTIGADORES
CASAUX Ricardo Jorge
congresos y reuniones científicas
Título:
The diet of the blue-eyed shag Phalacrocorax atriceps at Laurie Island, South Orkney Islands, as reflected by the analysis of stomach contents collected throughout the breeding season
Autor/es:
CASAUX R.; CORIA N.; BARRERA-ORO E.
Reunión:
Workshop; The CCAMLR Ecosystem Monitoring and Management Working Group; 1995
Resumen:
The analysis of twenty nine
stomach contents collected in a colony close to Pirie Peninsula, South Orkney
Islands, from 2 January to 18 February 1995, showed that fish were by far the
main prey of the blue-eyed shag Phalacrocorax atriceps, followed by
octopods, decapods and gammarids. Notothenia coriiceps constituted the
bulk of the diet; however, its importance decreased by the end of the study
when Nototheniops
nudifrons was the most important prey. The composition of the diet
varied throughout the breeding season according to changes in the chicks'
energetic demands. The results are compared to those obtained previously in the
area and the possibility that the stomach contents primarily represents the
chicks diet is discussed.