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| Raoux, Aurore; Baux, Noémie; Pezy, Jean-philippe; Balay, Pierre; Lesourd, Sandric; Dauvin, Jean-claude. |
| The impact of 70 years of dumping harbour dredged material on ecosystem functioning was compared to a control site (non-impacted zone). A combination of indices (Shannon-Wiener diversity, Pielou evenness, BO2A, AMBI benthic indices) and modelling (Ecopath models) generated Ecological Network Analysis indices were used to detect the dumping operations effects. ENA indices showed that dumping operations appear to have a relatively limited impact on the structure and flow pattern of the local food web. In fact, only small variations between the two sites are revealed by a comparison of ENA indices between the impacted and non-impacted zone. This result could be explained by the fact that the Bay of Seine is historically characterized by a high level of human... |
| Tipo: Text |
Palavras-chave: Dredged material disposal; Harbour activities; Ecopath model; Ecological Network; Analysis; Benthic indicators; Impacted zone; Non-impacted zone; Bay of Seine. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00622/73393/72610.pdf |
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| Rice, Jake; Arvanitidis, Christos; Borja, Angel; Frid, Chris; Hiddink, Jan G.; Krause, Jochen; Lorance, Pascal; Ragnarsson, Stefan Aki; Skold, Mattias; Trabucco, Benedetta; Enserink, Lisette; Norkko, Alf. |
| The European Marine Strategy Framework Directive (MSFD) requires European states to maintain their marine waters in 'Good Environmental Status'. The MSFD includes 11 descriptors of "Good Environmental Status" (GES), including "Sea-floor Integrity". This descriptor is defined as: "Sea-floor integrity is at a level that ensures that the structure and functions of the ecosystems are safeguarded and benthic ecosystems, in particular, are not adversely affected." This contribution briefly summarizes the main conclusions of an international expert group established to review the scientific basis for making this concept operational. The experts concluded that consideration of 8 attributes of the seabed system would provide adequate information to meet... |
| Tipo: Text |
Palavras-chave: Sea-floor Integrity; Benthic indicators; Marine Strategy Framework Directive; Good Environmental Status. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00049/16039/18002.pdf |
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