Ash-free dry weight biomass of Acroloxus lacustris (WoRMS 181590) per unit area of the bed by identification by optical microscopy and gravimetric determination of loss on ignition AHBDM005 Unavailable 2008-10-16 16:27:09.0 SDN:P01::AHBDM005 SDN:P01::AHBDM005 SDN:P01::AHBDM005 1 1 2008-10-16 16:27:09.0 accepted false