Assessing crucial stress on life cycle of fish in suburban streams

    Research output: Contribution to journalArticle

    Abstract

    To assess crucial stresses to fish survival in suburban streams, a Life Cycle Risk Assessment (LCRA) was developed and verified by comparing with field survey results. In LCRA, 8 stresses produced by human activities were taken into consideration, referring to the literature. Field survey was conducted over 2 years to identify the present existence and distributions of fishes in 3 streams, which have different pollution levels and morphologies. Field survey results demonstrated that species of fishes and their populations were different in 3 streams and varied with location. Crucial stresses frequently identified by the LCRA were depletion of dissolved oxygen (DO), disappearances of habitats (e.g. deep and shallow), disappearance of spawning area, and existence of obstructions in the streams. Furthermore, most LCRA results regarding existence or non-existence of 15 fishes at 7 different sites were fairly in good agreement with field survey results. From these results, we concluded the present LCRA would be a useful tool in assessing crucial stress as well as in predicting fish species that are able to survive in streams.

    Original languageEnglish
    Pages (from-to)705-711
    Number of pages7
    JournalWater Science and Technology
    Volume58
    Issue number3
    DOIs
    Publication statusPublished - 2008

    Fingerprint

    Risk assessment
    Fish
    Life cycle
    risk assessment
    life cycle
    field survey
    fish
    Dissolved oxygen
    dissolved oxygen
    Pollution
    spawning
    human activity
    pollution
    habitat

    Keywords

    • Assessment
    • Fish
    • Life cycle risk
    • Restoration
    • Suburban stream

    ASJC Scopus subject areas

    • Environmental Engineering
    • Water Science and Technology

    Cite this

    Assessing crucial stress on life cycle of fish in suburban streams. / Sakakibara, yutaka; Nakada, A.

    In: Water Science and Technology, Vol. 58, No. 3, 2008, p. 705-711.

    Research output: Contribution to journalArticle

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