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Evaluation of Infrasound and Strobe Lights to Elicit Avoidance Behavior in Juvenile Salmon and Char.

Description: Experimental tests were conducted using hatchery reared and wild juvenile chinook salmon Oncorhynchus tshawytscha, eastern brook trout Salvelinus fontinalis, and rainbow trout O. mykiss to determine specific behavior responses to infrasound (<20 Hz) and flashing strobe lights. Caged fish were acclimated in a static test tank and their behavior was recorded using low light cameras. Species specific behavior was characterized by measuring movements of the fish within the cage as well as observ… more
Date: February 1, 1999
Creator: Mueller, Robert, P.; Neitzel, Duane A. & Amidan, Brett G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kootenai River Fisheries Investigations : Rainbow Trout Recruitment : Period Covered: 1997.

Description: The objective of this study was to determine if juvenile production is limiting the population of rainbow trout Oncorbynchus mykiss in the Idaho reach of the Kootenai River. We used snorkeling and electrofishing techniques to estimate juvenile rainbow trout abundance in, and outmigration from, the Deep, Boulder, and Myrtle creek drainages in Idaho. The total population estimates for the three drainages estimated in 1997 were 30,023; 763; and 235; respectively. A rotary-screw trap was utilized t… more
Date: February 2, 1999
Creator: Downs, Chris
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Idaho Supplementation Studies : Five Year Report : 1992-1996.

Description: In 1991, the Idaho Supplementation Studies (ISS) project was implemented to address critical uncertainties associated with hatchery supplementation of chinook salmon Oncorhynchus tshawytscha populations in Idaho. The project was designed to address questions identified in the Supplementation Technical Work Group (STWG) Five-Year-Workplan (STWG 1988). Two goals of the project were identified: (1) assess the use of hatchery chinook salmon to increase natural populations in the Salmon and Clearwat… more
Date: August 1, 1999
Creator: Walters, Jody P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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