INVESTIGADORES
CASAUX Ricardo Jorge
congresos y reuniones científicas
Título:
The importance of fish in the diet of the South Polar Skua Catharacta maccormicki at the South Shetland Islands, Antarctica
Autor/es:
MONTALTI D.; CASAUX R.; CORIA N.; SOAVE G.
Reunión:
Workshop; The CCAMLR Ecosystem Monitoring and Management Working Group; 1996
Resumen:
Twenty eight stomach
contents of the South Polar Skua Catharacta maccormicki were
collected throughout the breeding season at Half-moon Island, South Shetland
Islands, Antarctica. The analysis of the samples indicated that fish were the
most frequent prey (100%) and also predominated in mass (98%) and that their
importance remained constant all along the study period. Eight fish species
were identified (Electrona antarctica, Pleuragramma antarcticum, Krefftichthys
anderssoni, Champsocephalus aceratus, Gymnoscopelus braueri, Electrona
carlsbergi, Protomyctophum normani and Protomyctophum tenisoni)
being E. antarctica the most important prey. The unexpected fish
importance in the diet composition as well as its implication for CCAMLR are
commented.