Run-off impacts on Arctic kelp holobionts have strong implications on ecosystem functioning and bioeconomy.

ABSTRACT: Kelps (Laminariales, Phaeophyceae) are foundation species along Arctic rocky shores, providing the basis for complex ecosystems and supporting a high secondary production. Due to ongoing climate change glacial and terrestrial run-off are currently accelerating, drastically changing physical and chemical water column parameters, e.g., water transparency for photosynthetically active radiation or dissolved concentrations of (harmful) elements. We investigated the performance and functioning of Arctic kelp holobionts in response to run-off gradients, with a focus on the effect of altered element concentrations in the water column. We found that the kelp Saccharina latissima accumulates harmful elements (e.g., cadmium, mercury) originating from coastal run-off. As kelps are at the basis of the

SUBMITTER: Niedzwiedz S 

PROVIDER: S-EPMC11649688 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature