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Invertebrate distribution patterns and river typology for the implementation of the water framework directive in Martinique, French Lesser Antilles

Bernadet, Caroline and Touron-Poncet, Heliott and Desrosiers, Catherine and Compin, Arthur and Bargier, Nicolas and Céréghino, Régis Invertebrate distribution patterns and river typology for the implementation of the water framework directive in Martinique, French Lesser Antilles. (2013) Knowledge and Management of Aquatic Ecosystems (408). 1-15. ISSN 1961-9502

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Official URL: http://dx.doi.org/10.1051/kmae/2013036

Abstract

Over the past decade, Europe's Water Framework Directive provided compelling reasons for developing tools for the biological assessment of freshwater ecosystem health in member States. Yet, the lack of published study for Europe's overseas regions reflects minimal knowledge of the distribution patterns of aquatic species in Community's outermost areas. Benthic invertebrates (84 taxa) and land cover, physical habitat and water chemistry descriptors (26 variables) were recorded at fifty-one stations in Martinique, French Lesser Antilles. Canonical Correspondence Analysis and Ward's algorithm were used to bring out patterns in community structure in relation to environmental conditions, and variation partitioning was used to specify the influence of geomorphology and anthropogenic disturbance on invertebrate communities. Species richness decreased from headwater to lowland streams, and species composition changed from northern to southern areas. The proportion of variation explained by geomorphological variables was globally higher than that explained by anthropogenic variables. Geomorphology and land cover played key roles in delineating ecological sub-regions for the freshwater biota. Despite this and the small surface area of Martinique (1080 km²), invertebrate communities showed a clear spatial turnover in composition and biological traits (e.g., insects, crustaceans and molluscs) in relation to natural conditions.

Item Type:Article
Additional Information:Thanks to EDP Sciences editor. The original PDF can be found at http://www.kmae-journal.org/articles/kmae/abs/2013/01/kmae120071/kmae120071.html
HAL Id:hal-00913651
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Asconit consultants (FRANCE)
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Deposited By: Régis Cereghino
Deposited On:04 Dec 2013 09:56

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