C and N stable isotope data for invertebrates collected by HOV Alvin during R/V Atlantis cruise AT50-24 at Sanak Seep Alaska from May 16 to June 5, 2024

This dataset provides C and N stable isotope data for invertebrates collected by HOV Alvin in May-June 2024 during R/V Atlantis cruise AT50-24 at methane seeps on the Aleutian margin off Alaska. There are also POM data for surface and near-bottom water samples collected by CTD. δ13C and δ15N measurements were made on 0.2-4 mg dry-weight samples combusted using an elemental analyzer interfaced to a continuous flow isotope ratio mass spectrometer at the Stable Isotope Facility at the University of California, Davis (SIF-UCD).