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Habitat Associations of Juvenile Cutthroat Trout: Implications for Forestry Impacts (in Proc. Conference Biology & Management of Species and Habitats at Risk) Rosenfeld, Jordan
1999
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Abstract: Juveniles of sea-run coastal cutthroat trout (Salmo clarki) rear in small coastal streams for 23 years before migrating to the ocean to complete their life cycle. Associations of juveniles with different habitats (e.g., pools vs. riffles) and the effect of large woody debris (LWD) on channel structure were evaluated in order to assess the longterm impact of different riparian management practices on cutthroat populations. Cutthroat densities were highest in smaller streams (<4 m bankfull width), and smaller parr (0+ year-class) were typically associated with shallower hydraulic units, while parr >110 mm long (larger 1+ and 2+ year-classes) were usually found in pools. LWD was responsible for >50% of pool formation in most streams, including those classified as S4 (<1.5 m bankfull width) under the British Columbia Forest Practices Code. Pools formed by LWD scour were, on average, 10% deeper than pools formed by other mechanisms...
 
Rosenfeld, Jordan, Porter, Marc S.; Parkinson, Eric A.. 1999. Habitat Associations of Juvenile Cutthroat Trout: Implications for Forestry Impacts (in Proc. Conference Biology & Management of Species and Habitats at Risk). Ministry of Environment, Lands and Parks. Proceedings - Conference Biology & Management. Vol. 2
 
Topic: Species and Ecosystems at Risk
Keywords: channel structure, channel width, coho, cutthroat trout, large woody debris, Oncorhynchus clarki, Salmo clarki
ISSN:  Scientific Name: Oncorhynchus clarkii
ISBN:  English Name: Cutthroat Trout
Other Identifier: University College of the Cariboo
 
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