Data/hora: 06/06/2024 11:51:42

Provedor de dados: | 5
País: | France
Título: | Dynamique spatiale et interannuelle des communautés mésozooplanctoniques en Manche Orientale en lien avec l’introduction récente d’une espèce non-indigène : Mnemiopsis leidyi
Autores: | Gravier, Nathan.
Data: | 2019-06
Ano: | 2019
Palavras-chave: | Mnemiopsis leidyi; Espèce exotique envahissante; Manche; Mésozooplancton; Mnemiopsis leidyi; Invasive species; English Channel; Mesozooplankton.
Resumo: | In the seas of southern Europe, Mnemiopsis leidyi is responsible for invasive events with worrying ecological consequences. Since 2005, this native of the east coast of the Americas is regularly observed in the English Channel in the Bay of Seine. In order to find out whether changes have taken place in the distribution of M. leidyi in the English Channel since the first reports made before 2014 and to identify the environmental conditions favourable to his presence, hydrological data and Channel Ground Fish Survey from 2014 to 2015 were analyzed. This confirmed that M. leidyi is well established in the Bay of Seine (naturalized species) but does not extend outside this area and therefore cannot be considered an invasive species for that region. The results showed that the French coast of the Eastern English Channel can be divided into two sub-regions characterized mainly by low salinities, the first covering the Bay of Seine and the second along the Picardie to the Strait of Dover. The indicator species that characterize zooplankton assemblages in the Bay of Seine are M. leidyi and its preferred prey, the larvae of barnacles and the small copepods of the genus Acartia.  Depending on the year, the two sub-regions of the French coastline may overlap more or less, confirming that the Picardie estuary region can also be favourable, both hydrologically and trophically, to the establishment of Mnemiopsis.
Tipo: | Text
Idioma: | Francês

Identificador:

https://archimer.ifremer.fr/doc/00504/61551/65459.pdf

https://archimer.ifremer.fr/doc/00504/61551/

Formato: | application/pdf

Fonte:

info:eu-repo/semantics/openAccess

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