COMPARISON OF THE STOMACH CONTENTS OF SOUTHERN ELEPHANT SEALS, MIROUNGA LEONINA, AT MACQUARIE AND HEARD ISLANDS

Autor:	K. Green, H. R. Burton
Rok vydání:	1993
Předmět:	geography geography.geographical_feature_category biology Foraging Aquatic Science biology.organism_classification Pacific ocean Fish eye Cephalopod Fishery Peninsula Benthic zone Carnivorous animal Feeding ecology Ecology Evolution Behavior and Systematics
Zdroj:	Marine Mammal Science. 9:10-22
ISSN:	1748-7692 0824-0469
Popis:	There are three major breeding populations of southern elephant seals centered on Macquarie Island, Kerguelen-Heard Islands and South Georgia-Antarctic Peninsula. The composition of the diet differs between these populations based on published data from Signy Island and data presented here from Macquarie and Heard Islands. These differences in diet appear to be linked to the location at which seals were sampled ranging from the least Antarctic (Macquarie Island) to the most Antarctic (Signy Island). The major food remains consisted of cephalopod beaks and fish eye lenses. More benthic material was found at Heard Island than at Macquarie Island. The diet at Macquarie Island differed between summer and winter and between young animals and adults. The difficulty in collecting dietary samples of southern elephant seals near their main foraging areas makes the study of the feeding ecology of this species extremely difficult in comparison with other Southern Ocean species.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bcb5af7849c2ef1619ad662f631274f5 https://doi.org/10.1111/j.1748-7692.1993.tb00422.x Zobrazit plný text záznamu Plný text