Movement of Cutthroat Trout, Salmo clarki clarki (Richardson) in Three Oregon Coastal Streams
- 1 October 1965
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 94 (4) , 334-338
- https://doi.org/10.1577/1548-8659(1965)94[334:moctsc]2.0.co;2
Abstract
Movement of cutthroat trout in three small coastal streams was studied from Oct. 1959 to Dec. 1963. Upstream migrations of trout occurred from late October until March, with a maximum in December. Kelts returned downstream from December to April with the greatest numbers in January and February. More than 90% of the downstream movement of immatures occurred in February, March, April, and May, with numbers being consistently greatest in April. Two-year-old immature fish dominated the run in the two larger streams, while 1-year-old immatures did so in the smallest stream. Small tributaries of the study areas were found to be very important to cutthroat trout reproduction. Young trout were noted to leave the tributaries at about 1 year of age. Trout 150 mm in length that had never left the study streams were found in a gravid condition near redd sites.This publication has 1 reference indexed in Scilit:
- Aggressive Behavior in Juvenile Coho Salmon as a Cause of EmigrationJournal of the Fisheries Research Board of Canada, 1962