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Etude de la faune présente sur les sites de dragage et d'immersion des déblais dragués dans l'estuaire de la Gironde

Abstract : At a request of the Bordeaux port's authority, the authors produce a classification of species located in the different areas where sediments are deposited. In a first part a partial inventory was lead on downstream channel in february 2001. During the second phase, an other inventory was prepared in abril 2001 both in the downstream channel, in the central sector and in the upstream channel. In the dragged areas there is almost no benthic fauna, on the other hand this area is occuped by "vagile" fauna and the macrofauna. Whichever animal sector was considered, the deposited areas of dragged material are very similar to the bench-mark areas. In the benthic sector a new index allows us to determine the impact of discharge as the well as the recolonization of the site.
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https://hal.inrae.fr/hal-02580118
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Submitted on : Thursday, May 14, 2020 - 8:13:38 PM
Last modification on : Monday, October 11, 2021 - 9:56:02 AM

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  • HAL Id : hal-02580118, version 1
  • IRSTEA : PUB00009753

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Michel Girardin, B. Sautour, Laurent Brosse, J.C. Sorbe, Eric Rochard. Etude de la faune présente sur les sites de dragage et d'immersion des déblais dragués dans l'estuaire de la Gironde. irstea. 2001, pp.56. ⟨hal-02580118⟩

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