Anthropogenic impact of oyster farming on macrofauna biodiversity in an eelgrass (Zostera marina) ecosystem of the English Channel

摘要: Abstract Zostera marina flourish along the west coast of Cotentin, in cohabitation with extensive oyster cultivation. In 2016, seasonal sampling was carried out based on five combinations conditions involving vegetated and unvegetated areas, presence or absence tables a control station without either eelgrass The sediments consisted muddy sandy gravel no significant difference sediment composition observed between stations seasons. A total 147 taxa 8404 individuals were recorded over period one year effort 5 m2. effects farming are relatively limited, not handicap for extension meadows this part English Channel. Nevertheless, low Taxonomic Richness abundances characterize tractor pathway. Macrofauna abundances, biomasses number shoots similar to those reported at other sites Channel from North-eastern Atlantic.