Occurrence of Ammothea hilgendorfi (Böhm, 1879) a pycnogonid from the north Pacific, in Étel river
Le Roux, A.; Gélinaud, G.; Le Bail, Y.; Monnat, J.-Y.; Morel, J.-Y.; Paraire, O.; Ros, J. (2020). Occurrence of Ammothea hilgendorfi (Böhm, 1879) a pycnogonid from the north Pacific, in Étel river. An Aod 8(1): 21-32
In: An Aod: Les cahiers naturalistes de l'Observatoire marin. Institut Universitaire Européen de la Mer: Plouzané . ISSN 2263-5718, meer
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Alien species
Ammothea hilgendorfi (Böhm, 1879) [WoRMS]
Marien/Kust |
| Author keywords |
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| Auteurs | | Top |
- Le Roux, A.
- Gélinaud, G.
- Le Bail, Y.
- Monnat, J.-Y.
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- Morel, J.-Y.
- Paraire, O.
- Ros, J.
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| Abstract |
The pycnogonid Ammothea hilgendorfi from the north Pacific was introduced accidentaly to Europe where it is known from Southern England, Netherlands and the Venice lagoon. It was collected in rivière d’Étel, South Brittany (47°40′N 3°11′W) where it forms a locally dense population. This species was actively reproducing in late September and mid November. It is carnivorous, may be a scavenger and manifests a gregarious behaviour at least at low tide. It is likely to have a significant impact on its host environment due to its high density population. Its probable further spreading deserves to be monitored. |
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