Local variation variation within marinas: Effects of pollutants and implications for invasive species

MARINE POLLUTION BULLETIN

卷:133

Article

Kenworthy, Joseph M.¹  Rolland, Guillaume¹  Samadi, Sarah²  Lejeusne, Christophe¹ 

[1] Sorbonne Univ, CNRS, Adaptat & Diversite Milieu Marin UMR 7144 AD2M, Stn Biol Roscoff,CS90074, Pl Georges Teissier, F-29688 Roscoff, France

[2] Sorbonne Univ, MNHN, ISYEB, UMR CNRS 7205,UPMC,EPHE, CP26,57 Rue Cuvier, F-75005 Paris, France

关键词: Biofouling;    Marinas;    Artificial structures;    Sessile invertebrates;    Invasive species;    Community composition;   

DOI  :  10.1016/j.marpolbul.2018.05.001

来源: Elsevier

【 摘 要 】

Urban structures like marinas are dominant features of our coasts, often hotspots for invasive species. The processes that govern the distribution of invasive species within and between marinas are not well understood. We therefore investigated the impacts of local-scale variability within and between marinas, analysing fouling communities at two zones (inner and outer) within three close marinas in accordance with pollutants recorded in the water and sediment. Communities varied between zones, however no significant differences in abundances of invasive species was recorded. The inner zones contained higher levels of copper and other pollutants and were correlated with lower biodiversity and abundances of many species in comparison to the outer zones. Only the native Ascidiella aspersa was found in greater abundances in the inner zones. This local-scale variability and how it impacts biodiversity is important for consideration for coastal managers in mitigating the build-up of pollutants and spread of invasive species.

【 授权许可】

Free