Conceptid (2) | Preflabel |
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AHBDM399 | Ash-free dry weight biomass of Valvata cristata (WoRMS 153996) per unit area of the bed by identification by optical microscopy and gravimetric determination of loss on ignition |
ZBN01634 | Abundance of Valvata cristata (WoRMS 153996) per unit area of the bed by sieving and picking under an optical microscope |