Spatial variability and response to anthropogenic pressures of assemblages dominated by a habitat forming seaweed sensitive to pollution (northern coast of Alboran Sea)

MARINE POLLUTION BULLETIN

卷:105

Article

Bermejo, Ricardo¹  de la Fuente, Gina²  Ramirez-Romero, Eduardo³  Vergara, Juan J.¹  Hernandez, Ignacio¹ 

[1] Univ Cadiz, Fac Ciencias Mar & Ambient, Area Ecol, Dept Biol, Campus Rio San Pedro, Cadiz 11510, Spain

[2] Univ Genoa, Dipartimento Sci Terra Ambiente & Vita DISTAV, Corso Europa 26, I-16132 Genoa, Italy

[3] GEOMAR Helmholtz Ctr Ocean Res Kiel, Expt Ecol Foodwebs, Dusternbrooker Weg 20, D-24105 Kiel, Germany

关键词: Cystoseira;    Spatial variability;    Rocky shores;    Habitat forming species;    Anthropogenic pressures;    Oceanography and community patterns;    Seaweeds;   

DOI  :  10.1016/j.marpolbul.2016.02.017

来源: Elsevier

【 摘 要 】

The Cystoseira ericaefolia group is conformed by three species: C. tamariscifolia, C. mediterranea and C. amentacea. These species are among the most important habitat forming species of the upper sublittoral rocky shores of the Mediterranean Sea and adjacent Atlantic coast. This species group is sensitive to human pressures and therefore is currently suffering important losses. This study aimed to assess the influence of anthropogenic pressures, oceanographic conditions and local spatial variability in assemblages dominated by C. ericaefolia in the Alboran Sea. The results showed the absence of significant effects of anthropogenic pressures or its interactions with environmental conditions in the Cystoseira assemblages. This fact was attributed to the high spatial variability, which is most probably masking the impact of anthropogenic pressures. The results also showed that most of the variability occurred on at local levels. A relevant spatial variability was observed at regional level, suggesting a key role of oceanographic features in these assemblages, (C) 2016 Elsevier Ltd. All rights reserved.

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