Data/hora: 29/05/2024 00:31:58

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Recent expansion of the slipper limpet population (Crepidula fornicata) in the Bay of Mont-Saint-Michel (Western Channel, France)
Autores: | Blanchard, Michel.
Data: | 2009
Ano: | 2009
Palavras-chave: | Western Channel; France Crepidula fornicata Sidescan sonar Stock estimation Oyster farming Spread Invasive species.
Resumo: | A population of the invasive slipper limpet (Crepidula fornicata) has been spreading in the Bay of Mont-Saint-Michel (Western English Channel) for 40 years. Sidescan sonar, underwater video and quantitative sampling were conducted in 1996 and 2004 to document the widening geographic spread of the species over the bay. The limpet population grew by 50% during this period, to reach a fresh biomass of about 150 000 t. This local study analyses causes and effects of the spread and provides a typical example of the limpet spreading process. This population increase has significant effects on the environment in the most densely colonized area (modification to the sediment and biodiversity), leading to the emergence of a new benthic community. Anthropic dredging activities are among the causative factors of the spread but are also adversely affected by the invasion.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/2009/publication-6351.pdf

DOI:10.1051/alr/2009004

Editor: | EDP Sciences
Relação: | http://archimer.ifremer.fr/doc/00000/6351/
Formato: | application/pdf
Fonte: | Aquatic Living Resources (0990-7440) (EDP Sciences), 2009 , Vol. 22 , N. 1 , P. 11-19
Fonte: | 2009 EDP Sciences