Water puriTICation abilities of eight Japanese Unionoida

概要

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The water purification capacities of eight species of unionid mussels, Margaritlfera laevis､ Unio douglasiae nipponensis, Inversiunio jokohamensis, Lanceolaria grayana, Obovalis omiensis, Inversidens brandti, Anodonta japonica and Cristaria plicata were detemined through laboratory lnVeStlgation. Under experimental conditions, all eight species demonstrated higher noctlmalthandiurnal filtration rates. Furthermore, all species had a tendency to decrease total organic carbon (TOC) and total nitrogen (TN), demonstrating　their contribution to water pmiflCation. However, no direct correlation was observed forany species inthe relationship between filtration rate and TOCand TN removalrates, suggestlng lnterSPeCies differences in TOC and TN removal capabilities.
2010-02-10