February 1st to 5th 2016
Olhão, Portugal
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Biological Invasions in the Mediterranean sea: ports versus Marine Protected Areas

Scientific Exhibition
Biological Invasions
Thursday, February 4, 2016 -
17:30 to 19:30

Ardura, A. 1 Planes, S. 2

1USR3278-CRIOBE-CNRS-EPHE. Laboratoire d'excellence "CORAIL", Université de Perpignan-CBETM. 58 Rue Paul Alduy. 66860-Perpignan CEDEX, France
2USR3278-CRIOBE-CNRS-EPHE. Laboratoire d'excellence "CORAIL"

The Mediterranean Sea is the largest semi-enclosed European sea which main characteristics are quite different from other European sea. These characteristics determine in a unique way the fate of physicochemical and biological cycles affecting all aspects of ecological process. The fauna and flora present in this sea, is one of the richest in the world particularly in the coastal zone, highly diverse and with a high rate of endemism. But, on the other hand, a lot of human activities are important sources of degradation to the Mediterranean marine ecosystem. One of the more dangerous threats to global biodiversity is the introduction of exotic species like an ongoing process. This phenomenon is apparent across the Mediterranean, which is caused by the Suez Canal, shipping and/or aquaculture. Besides, lagoonal ecosystems in the south of Francia, with around 100 exotic species inventoried, are considered hot-spot areas for exotic species. The main objective of this work is analyzing the benefits of marine protected areas (MPA) with Saint-Nazaire lagoon like a model (Natura 2000 network) on NIS control, versus one more modified ecosystem, Canet port; both in Langedoc-Rousillon (South Mediterranean). We have employed genetic Barcoding for ascertaining the species to avoid taxonomic incertitude. We have found strong and significant difference between MPA and port effect of MPA against NIS, with only one invasive species in the lagoon some invasive species. These differences are likely due to a combination of less habitat degradation and a higher occupation of niches by native species.

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