Mediation of macronutrients and carbon by post-disturbance shelf sea sediment communities.

ABSTRACT: Benthic communities play a major role in organic matter remineralisation and the mediation of many aspects of shelf sea biogeochemistry. Few studies have considered how changes in community structure associated with different levels of physical disturbance affect sediment macronutrients and carbon following the cessation of disturbance. Here, we investigate how faunal activity (sediment particle reworking and bioirrigation) in communities that have survived contrasting levels of bottom fishing affect sediment organic carbon content and macronutrient concentrations ([NH₄-N], [NO₂-N], [NO₃-N], [PO₄-P], [SiO₄-Si]). We find that organic carbon content and [NO₃-N] decline in cohesive sediment communities that have experienced an

SUBMITTER: Hale R 

PROVIDER: S-EPMC6961522 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature