Temporal and spatial trends in marine carbon isotopes in the Arctic Ocean and implications for food web studies.

ABSTRACT: The Arctic is undergoing unprecedented environmental change. Rapid warming, decline in sea ice extent, increase in riverine input, ocean acidification and changes in primary productivity are creating a crucible for multiple concurrent environmental stressors, with unknown consequences for the entire arctic ecosystem. Here, we synthesized 30 years of data on the stable carbon isotope (δ¹³ C) signatures in dissolved inorganic carbon (δ¹³ C-DIC; 1977-2014), marine and riverine particulate organic carbon (δ¹³ C-POC; 1986-2013) and tissues of marine mammals in the Arctic. δ¹³ C values in consumers can change as a result of environmentally driven variation in the δ¹³ C values at the base of the food web or alteration in the trophic structure

SUBMITTER: de la Vega C 

PROVIDER: S-EPMC6899536 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature