Interspecific habitat associations of juvenile salmonids in Lake Ontario tributaries: implications for Atlantic salmon restoration

Journal of Applied Ichthyology
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Abstract

Diel variation in habitat use of subyearling Chinook salmon (Oncorhynchus tshawytscha), subyearling coho salmon (O. kisutch), yearling steelhead (O. mykiss), and yearling Atlantic salmon (Salmo salar) was examined during the spring in two tributaries of Lake Ontario. A total of 1318 habitat observations were made on juvenile salmonids including 367 on steelhead, 351 on Chinook salmon, 333 on Atlantic salmon, and 261 on coho salmon. Steelhead exhibited the most diel variation in habitat use and Chinook the least. Juvenile salmonids were generally associated with more cover and larger substrate during the day in both streams. Interspecific differences in habitat use in both streams occurred with Atlantic salmon (fast velocities) and coho salmon (pools) using the least similar habitat. Chinook salmon and Atlantic salmon used similar habitat in both streams. These findings should help guide future management actions specific to habitat protection and restoration of Atlantic salmon in Lake Ontario tributaries.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Interspecific habitat associations of juvenile salmonids in Lake Ontario tributaries: implications for Atlantic salmon restoration
Series title Journal of Applied Ichthyology
DOI 10.1111/jai.12456
Volume 30
Issue 5
Year Published 2014
Language English
Publisher Wiley-Blackwell
Publisher location Berlin
Contributing office(s) Great Lakes Science Center
Description 9 p.
First page 853
Last page 861
Country United States
State New York
Other Geospatial Orwell Brook, Trout Brook
Online Only (Y/N) N
Additional Online Files (Y/N) N
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