Expanding marine predator isotope work: community-level metrics, mercury isotopes, and data-model linkages
Ecological applications of stable carbon and nitrogen isotope analysis are rapidly expanding through the analysis of metadata. Recent efforts of the IMBeR CLIOTOP Task Team on Marine Predator Isotopes have focused on finalising an open-access data paper and three research papers that present novel findings of global scale, spatial and temporal analyses on migratory tuna muscle isotopes. The task team recently met in Brest, France to discuss novel ways to expand our ecological understanding of the ocean. The main approaches included formulating community level metrics, using isotopes of mercury, and finding practical ways to link isotopic data with ecosystem and biogeochemical models.