Killer whales Distribution Ecophysiology Stable isotopes Biodiversity Animal migration Poisson Tracking Personality Conservation Mirounga leonina Invasive species Mercury PFAS Antarctic Salmonids Demography Climate change Bioaccumulation Foraging ecology Abundance Southern elephant seal Biologging Foraging behaviour Birds Body condition Southern Indian Ocean Blood Contaminants Diet Thyroid hormones Insect Morphology Marine predators Disease ecology Biological invasion Oxidative stress Seabird Diving behavior Bio-logging Ageing Southern Ocean GPS Fisheries Sea trout Behavioural ecology Mate choice Seabirds Trace elements Black-legged kittiwake Albatrosses Movement ecology Cold stress Procellariiformes Stress InvaCost Foraging Salmo trutta Sexual selection Phenotypic plasticity Energetics Ecology Diving behaviour Depredation Metabolism Kerguelen Diomedea exulans Functional traits Salmonidae Population dynamics Monetary impacts Pygoscelis adeliae Dispersal Behaviour Svalbard Migration Conservation biology Breeding success Global change Fish Corticosterone Management Arctic Capture–mark–recapture Energy expenditure ACL Antarctica Wandering albatross Rissa tridactyla Arctocephalus gazella Survival Mitochondria Metabolomics Foraging behavior Prolactin Sea ice Age Accelerometry Reproduction Biological invasions