Skip to Main Content
Gravel pit ponds as habitat enhancement for juvenile coho salmon.Author(s): M.D. Bryant
Source: Gen. Tech. Rep. PNW-GTR-212. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 10 p
Publication Series: General Technical Report (GTR)
Station: Pacific Northwest Research Station
View PDF (366 KB)
DescriptionGravel pits built during road construction in the early 1970's near Yakutat, Alaska, filled with water and were connected to nearby rivers to allow juvenile salmonids to enter. Seasonal changes in population size, length and weight, and length frequencies of the coho salmon population were evaluated over a 2-year period. Numbers of coho salmon fluctuated, but two of the ponds supported high populations, more than 2,000 fish, throughout the study. These ponds appeared to support coho salmon throughout the winter. The range of physical measurements of the ponds did not seem to account for differences in numbers of salmon, but low concentrations of dissolved oxygen were detected in all ponds near the bottom. Aquatic vegetation, water exchange rate, and access may have affected the number of coho salmon in the less productive ponds.
- You may send email to firstname.lastname@example.org 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.
CitationBryant, M.D. 1988. Gravel pit ponds as habitat enhancement for juvenile coho salmon. Gen. Tech. Rep. PNW-GTR-212. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 10 p
KeywordsFish habitat, salmonids, stream habitat management, southeast Alaska, Alaska (southeast)
- Historical occurrence of coho salmon (Oncorhynchus kisutch) in streams of the Santa Cruz Mountain region of California: response to an Endangered Species Act petition to delist coho salmon south of San Francisco Bay
- The influence of fall-spawning coho salmon (Oncorhynchus kisutch) on growth and production of juvenile coho salmon rearing in beaver ponds on the Copper River Delta, Alaska.
- Riverscape patterns among years of juvenile coho salmon in midcoastal Oregon: implications for conservation
XML: View XML