Nephtys cirrosa and fluctuating salinity-tolerant fauna in reduced salinity infralittoral mobile sand
|Within Vocab||Marine Habitat Classification for Britain and Ireland Version 97.06|
|Definition||Mobile sand in reduced salinity conditions where tidal currents create an unstable shifting habitat. Characteristic species include the polychaetes Nephtys cirrosa and Scoloplos armiger along with amphipods of the genus Bathyporeia spp. The biotope contains relatively few species each typically in low abundance. It is found in tidal channels with moderate to strong tidal streams. The habitat is more stable than IGS.MobRS and may contain a small percentage of silt/clay, especially when sampled on slack water when deposition of the finer sediment grades occurs. Care should be taken in identification of this biotope due to the presence juveniles and species washed in during slack water. The biotope is a reduced salinity version of IGS.NcirBat, distinguished from this by the absence of species not tolerant of reduced salinities, in particular the polychaete Chaetozone setosa.|
|Has Current Version||1|
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