Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (900 KB)

Title: Stream inflow and predation risk affect littoral habitat selection by benthic fish

Author: Polivka, Karl M.; Friedli, Lisa M.; Green, Elizabeth C.;

Date: 2013

Source: Freshwater Biology. 58(5): 986-994

Publication Series: Scientific Journal (JRNL)

Description: We examined small, fishless headwater streams to determine whether transport of macroinvertebrates into the littoral zone of an oligotrophic lake augmented food availability for Cottus asper, an abundant predatory fish in our study system. We sampled fish and macroinvertebrates during the recruitment and growth season of 2 years, either monthly (2004) or bi-monthly (2005), to observe whether stream inputs increased prey availability and whether variation in total macroinvertebrate biomass was tracked by fish. Our results suggest that the effect of fishless headwater streams on downstream fish may not always be through direct delivery of food. In this study system, fish preferred stream inflow plots, but this preference interacted with macroinvertebrate biomass in a manner that was difficult to explain. For young-of-the-year, predation risk was related to the preference for stream inflows, although the specific factor that mitigates predation risk remains poorly understood.

Keywords: benthic, cottids, habitat selection, lakes, resource matching

Publication Notes:

  • 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.



Polivka, Karl M.; Friedli, Lisa M.; Green, Elizabeth C. 2013. Stream inflow and predation risk affect littoral habitat selection by benthic fish. Freshwater Biology. 58(5): 986-994.


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.