A stable isotope analysis on blood and whiskers samples from adult female Antarctic fur seals, from 3 colonies in the Southern Ocean: - Marion Island (2008-2018) - Bird Island, South Georgia (2008-2012) - Cape Shirreff, South Shetland Islands (2008-2012) The purpose of the study is to examine temporal, spatial and individual variation in the trophic ecology of Antarctic fur seal, and their role as sentinels of change in the Southern Ocean ecosystem. EMBARGO NOTE: Data is embargoed until 01/01/2027. The data files associated with this record will be made available at this time.

This dataset contains physiological measurements collected from sand flathead (Platycephalus bassensis) to examine regional differences in thermal performance between Tasmania’s heavily fished southern population and the more lightly fished northern population. Fish were captured from both regions and acclimated for three weeks under common laboratory conditions before measurements were taken. The dataset includes standard metabolic rate (SMR), maximum metabolic rate (MMR), and aerobic scope (AS) recorded during acute thermal exposure at 12.5°C, 15°C, and 20°C using intermittent‑flow respirometry. To assess longer‑term thermal tolerance, critical thermal maximum (CTmax) was measured after a 14‑day acclimation to each test temperature. The purpose of the study was to determine whether populations with different histories of fishing pressure exhibit divergent thermal sensitivities and metabolic responses to warming. This information contributes to understanding how exploitation history may influence physiological resilience to climate change in coastal fisheries.

Time series dataset of depth and activity recorded by miniPAT (Wildlife computers) popup satellite archival tags deployed on Kerguelen sandpaper skates (Bathyraja irrasa, n=24) caught in the Patagonian toothfish longline fishery in Heard Island and McDonald Islands. Tags were deployed to assess the post-release survival of skates in the fishery.