Data from stable C and N isotope ratios revealing seasonal and interannual variability in the diet of young and sub-adult male Antarctic fur seals

Stable carbon and nitrogen isotope ratios in whiskers and blood of young (2-3 years old) and sub-adult (4-7 years old) Antarctic fur seal males from the South Shetland Islands were used to assess the seasonal and interannual changes in the krill contribution to their diet. The dataset shows the stab...

Full description

Bibliographic Details
Main Authors: Drago, Massimiliano, Llorach, Celia, Ormazábal Santa Cruz, Unai, Zenteno Devaud, Lisette, Rebolledo, Lorena, Rita, Diego, Gazo i Pérez, Manel, Cardona Pascual, Luis
Format: Dataset
Language:English
Published: CORA.Repositori de Dades de Recerca 2022
Subjects:
Earth and Environmental Sciences
Antarctica
Arctocephalus gazella
Blood components
Feeding
Foraging ecology
Marine mammals
Pinnipeds
Isotopes
Vibrissae
Antarc*
Antarctic
Antarctic Fur Seal
Antarctic Fur Seals
South Shetland Islands
Online Access:https://doi.org/10.34810/data234
Description
Summary:Stable carbon and nitrogen isotope ratios in whiskers and blood of young (2-3 years old) and sub-adult (4-7 years old) Antarctic fur seal males from the South Shetland Islands were used to assess the seasonal and interannual changes in the krill contribution to their diet. The dataset shows the stable isotope ratios revealing that krill dominated the diet of young and sub-adult male Antarctic fur seals year-round, with penguins, and not fish, as the second major prey, regardless of year and season. Whisker values are represented from the oldest part of the whisker (tip) to the newest one (root).

Similar Items