Behavior and Movement of Adult Summer Steelhead Following Collection and Release, Lower Cowlitz River, Washington, 2012?2013 (Paperback) (ISBN-13: 9781497418844)

Historically, adult summer steelhead Oncorhynchus mykiss returning to hatcheries on the lower Cowlitz River were sometimes transported and released in the river (recycled) to provide additional angling opportunity for the popular sport fishery in the basin. However, this practice has not been used in recent years because of concerns associated with interactions between hatchery fish and wild fish. Fishery managers were interested in resuming recycling but lacked information regarding effects of this practice on wild steelhead so we conducted a study during 2012-2013 to: (1) enumerate recycled steelhead that returned to the hatchery or were removed by anglers; and (2) determine if steelhead that were not removed from the river remained in the system where they could interact with wild fish.

Author: U. S. Department of the Interior
ISBN-10: 1497418844
ISBN-13: 9781497418844
Publisher: Createspace Independent Publishing Platform
Language: English
Published: 03/30/2014
Pages: 28
Format: Paperback
Weight: 0.20lbs
Size: 11.02h x 8.50w x 0.06d