Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Jason L. WhiteBret C. Harvey
    Date: 2007
    Source: Transactions of the American Fisheries Society 136: 1187-1192
    Publication Series: Scientific Journal (JRNL)
    PDF: View PDF  (0 B)

    Description

    To investigate the relationship between turbidity and trout feeding success in natural systems, we sampled the stomach contents of resident rainbow trout Oncorhynchus mykiss and coastal cutthroat trout O. clarkii clarkii under different streamflow and turbidity conditions during winter in two northwestern California streams (total sample sizeĀ¼161). Feeding success generally did not differ sharply for fish collected under low versus high streamflow and turbidity conditions. Bioenergetics modeling suggested that feeding success on average did not reach maintenance levels for seven of eight sets of samples, but extensive feeding on oligochaetes during one period of elevated streamflow resulted in positive energy balances. Occasional peaks in food intake could greatly influence the energy budgets and growth of trout in mild-winter systems. Under some natural conditions, trout appear able to achieve relatively high feeding success when turbidity limits visibility.

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    White, Jason L.; Harvey, Bret C. 2007. Winter feeding success of stream trout under different streamflow and turbidity conditions. Transactions of the American Fisheries Society 136: 1187-1192.

    Keywords

    salmonids, fish, feeding success, turbidity

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page