INDIRECT EFFECTS OF HUMAN ACTIVITIES ON STREAM INVERTEBRATES BY ALTERING SALMONID FISH DENSITY IN MOUNTAIN STREAMS.

• UEDA Ryuji

  Graduate School of Science and Engineering, Ehime University

• KIKUCHI Syugo

  Graduate School of Science and Engineering, Ehime University

• MIYAKE Yo

  Graduate School of Science and Engineering, Ehime University

• SUGIHARA Tatsuya

  Graduate School of Science and Engineering, Ehime University

• INOUE Mikio

  Graduate School of Science and Engineering, Ehime University

Bibliographic Information

Other Title

• 山地河川における人間活動がアマゴの生息密度改変を介して底生動物に及ぼす間接的影響

Abstract

The construction of erosion control dams and the alteration of riparian forest are known to have strong influences on the density of salmonid fish that dominate in mountain streams. Our objective was to elucidate the indirect effect of the dam construction and riparian alteration on stream invertebrates through the alteration of salmonid fish (Oncorhynchus masou ishikawae) density. The densities of two dominant invertebrate species, Baetis yoshinensis and Baetis thermicus, were low at study sites with high O. masou density. In conclusion, our study suggested that human activities indirectly affect stream invertebrates via changing fish abundance in mountain streams.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 68 (4), I_691-I_696, 2012

  Japan Society of Civil Engineers

Keywords

• erosion control dams
• human impacts
• Oncorhynchus masou ishikawae
• riparian forest
• stream invertebrates

Details

• CRID: 1390001205352217728
• NII Article ID: 130004557739
• DOI: 10.2208/jscejhe.68.i_691
• ISSN: 2185467X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed