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Investigations into the Early Life History of Naturally Produced Spring Chinook Salmon and Summer Steelhead in the Grande Ronde River Basin : Annual Report 2000 : Project Period 1 October 1999 to 30 November 2000.

Technical Report ·
DOI:https://doi.org/10.2172/798754· OSTI ID:798754
The authors determined migration timing and abundance of juvenile spring chinook salmon Oncorhynchus tshawytscha and juvenile steelhead/rainbow trout O. mykiss from three populations in the Grande Ronde River basin. Based on migration timing and abundance, two distinct life-history strategies of juvenile spring chinook and O.mykiss could be distinguished. An early migrant group left upper rearing areas from July through January with a peak in the fall. A late migrant group descended from upper rearing areas from February through June with a peak in the spring.
Research Organization:
Oregon Department of Fish and Wildlife
Sponsoring Organization:
US Bonneville Power Administration
OSTI ID:
798754
Report Number(s):
DOE/BP-00003076-1
Country of Publication:
United States
Language:
English