Study on the Effect of Streambed Substrate on Invertebrate Diversity

Zhi Wen Luo; Wen Yan Wu; Kun Le

doi:10.4028/www.scientific.net/AMR.937.491

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 937Study on the Effect of Streambed Substrate on...

Study on the Effect of Streambed Substrate on Invertebrate Diversity

Abstract:

Invertebrates are important components of stream ecosystems. A field experiment was conducted to study the effects of substrate particle size, shape and roughness on the composition and biodiversity of invertebrates. The results show that the particle sizes, porosity,and interstial dimensions of the substrate affect the invertebrate community,while the shape and surface roughness of the substrate do not strongly affect the benthos composition and density. The invertebrate composition in the gravel is stable. The density and species richness in the gravels, leaf humus and are much higher than those in the black silt and sands.