Habitat use by subyearling Chinook and coho salmon in Lake Ontario tributaries
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Abstract
The habitat use of subyearling Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) was examined in three tributaries of Lake Ontario. A total of 1781 habitat observations were made on Chinook salmon (698) and coho salmon (1083). During both spring and fall, subyearling coho salmon used pool habitat with abundant cover. During spring, principal component analysis revealed that water depth was the most important variable governing subyearling Chinook salmon habitat use. Substrate materials used by Chinook salmon in the spring and coho salmon in the fall were significantly smaller than were present on average within the study reaches. When the two species occurred sympatrically during spring they exhibited similar habitat selection. Although the habitat used by coho salmon in Lake Ontario tributaries was consistent with observations of habitat use in their native range, higher water velocities were less important to Chinook salmon than has previously been reported.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Habitat use by subyearling Chinook and coho salmon in Lake Ontario tributaries |
Series title | Journal of Great Lakes Research |
DOI | 10.1016/j.jglr.2013.12.006 |
Volume | 40 |
Issue | 1 |
Year Published | 2014 |
Language | English |
Publisher | International Association for Great Lakes Research |
Publisher location | Toronto |
Contributing office(s) | Great Lakes Science Center |
Description | 6 p. |
First page | 149 |
Last page | 154 |
Country | United States |
State | New York |
Other Geospatial | Little Sandy Creek, Orwell Brook, Trout Brook |
Online Only (Y/N) | N |
Additional Online Files (Y/N) | N |
Google Analytic Metrics | Metrics page |