MA3-212 - Homoeogammarus planicrurus (anciennement Pectenogammarus planicurus ou Echinogammarus planicrurus) dans du gravier ou du sable grossier bien trié du supra- et du médiolittoral

Pectenogammarus planicrurus in mid shore well-sorted gravel or coarse sand

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Shores of well-sorted gravel with a predominant particle size of 4.0 mm but ranging between 3 and 6 mm support dense populations of the amphipod Pectenogammarus planicrurus . Material finer than 2 mm reduces the ability of the amphipod to survive. The amphipod is tolerant of variable salinity, although a preference for a specific salinity regime has not been determined. As this habitat is regularly under-surveyed, its distribution is unclear.
Situation: The biotope is often associated with the lee side (wind or tide) of obstacles such as rock outcrops and groynes; this may be due to the deposition of algal debris, shelter from wave action or degree of sorting due to localised tidal flow around the obstacle (most likely a combination of the first and last influence).

Bibliography

European Topic Centre on Biological Diversity 2022. EUNIS marine habitat classification 2022 including crosswalks. Table Excel. (Source)