Ash-free dry weight biomass of Anodonta cygnea (WoRMS 234103) per unit area of the bed by identification by optical microscopy and gravimetric determination of loss on ignition AHBDM014 Unavailable 2008-10-16 16:27:09.0 SDN:P01::AHBDM014 SDN:P01::AHBDM014 SDN:P01::AHBDM014 1 1 2008-10-16 16:27:09.0 accepted false