Relative contribution of multiple stressors on copepod density and diversity dynamics in the Belgian part of the North Sea

MARINE POLLUTION BULLETIN

卷:125

Article

Deschutter, Yana^1,2  Everaert, Gert^1,3  De Schamphelaere, Karel¹  De Troch, Marleen² 

[1] Univ Ghent, Lab Environm Toxicol & Aquat Ecol, Coupure Links 653, B-9000 Ghent, Belgium

[2] Univ Ghent, Marine Biol, Krijgslaan 281-S8, B-9000 Ghent, Belgium

[3] Flanders Marine Inst VLIZ, Wandelaarkaai 7, B-8400 Oostende, Belgium

关键词: Multiple stressors;    Organic chemicals;    North Sea;    Zooplankton;    Multimodel inference;   

DOI  :  10.1016/j.marpolbul.2017.09.038

来源: Elsevier

【 摘 要 】

The effect of multiple stressors on marine ecosystems is poorly understood. To partially bridge this knowledge gap we investigated the relative contribution of environmental variables to density and diversity dynamics of the zooplankton community in the Belgian part of the North Sea. We applied multimodel inference on generalized additive models to quantify the relative contribution of chlorophyll a, temperature, nutrients, salinity and anthropogenic chemicals (i.e. polychlorinated biphenyls and polycyclic aromatic hydrocarbons) to the dynamics of calanoid copepod species in the Belgian part of the North Sea. Temperature was the only predictor consistently showing a high importance in all models predicting the abundances of the selected copepod species. The relative contribution of other predictors was species-dependent. Anthropogenic chemicals were important predictors for three out of six species indicating that chemical mixtures at low concentrations should not be left unattended when performing risk assessments in a natural environment.

【 授权许可】

Free