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| Jac, Cyrielle; Desroy, Nicolas; Certain, Gregoire; Foveau, Aurelie; Labrune, Céline; Vaz, Sandrine. |
| By relating observed changes to the pressures suffered, the Marine Strategy Framework Directive intends to better control the factors of environmental degradation and to manage their consequences in European waters. Several descriptors are defined within the framework of the MFSD and in particular descriptor 1 relating to the biological diversity of the seabed and descriptor 6 relating to the seabed integrity (i.e. the quality of their structures and functions). For each descriptor, indicators and threshold values must be defined and a novel conceptual approach to define and detect seabed integrity thresholds is proposed here. Bottom trawling being the main source of shelf continental disturbance, it is important to evaluate its impact on benthic habitat.... |
| Tipo: Text |
Palavras-chave: GES; Threshold values; Trawling impact; Indices; MFSD. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00634/74575/74464.pdf |
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| Labrune, Céline; Lavesque, Nicolas; Bonifácio, Paulo; Hutchings, Pat. |
| A new species of Terebellidae, Pista colini sp. n., has been identified from the harbour of Banyuls-sur-Mer, north-western Mediterranean Sea. This new species was found in very high densities, exclusively in gravelly sand deposited manually, and was not found in the original source habitat of the gravel. This species is characterized by the colour of the ventral shields with pinkish anterior part and a blood red posterior part in live specimens, a pair of unequal-sized plumose branchiae inserted on segment II and anterior thoracic neuropodia with long-handled uncini. The presence of long-handled uncini even in the smallest specimens constitutes the major difference between Pista colini sp. n. and other Pista species with a single pair of branchiae such as... |
| Tipo: Text |
Palavras-chave: Annelida; Gravel deposits; Harbour; Pista colini sp. n.; Taxonomy; Terebellida. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00489/60062/63347.pdf |
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| Jac, Cyrielle; Desroy, Nicolas; Certain, Gregoire; Foveau, Aurelie; Labrune, Céline; Vaz, Sandrine. |
| The benthic fauna of European continental shelves is a severely impacted community, mostly due to intense bottom trawling activity. Trawling effect may be dependent on the spatial and temporal distribution of abrasion, the habitat type including natural perturbation intensity and the fishing gear used. Nonetheless, there is an urgent need to identify or develop indices likely to measure the effect of trawling. For this purpose benthic fauna by-catch monitored in scientific trawl surveys carried out in all European waters in the frame of the Common Fishery Policy Data Collection Multiannual Program may be used. Benthic invertebrates data used in this study were collected during scientific bottom trawl surveys covering the English Channel, the North Sea and... |
| Tipo: Text |
Palavras-chave: Benthic sensitivity; Trawling effect; Indices; Seabed integrity; MSFD. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00635/74693/74606.pdf |
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