Angling and Electrofishing for Removing Nonnative Rainbow Trout from a Stream in a National Park
- 1 October 1986
- journal article
- Published by Oxford University Press (OUP) in North American Journal of Fisheries Management
- Vol. 6 (4) , 580-585
- https://doi.org/10.1577/1548-8659(1986)6<580:aaefrn>2.0.co;2
Abstract
An experimental 9-week fishery was conducted in a Great Smoky Mountains National Park stream (Lynn Camp Prong) to evaluate the use of angling and electro fishing as techniques for reducing the density of a non-native rainbow trout (Salmo gairdneri) population. Most anglers were local residents in Tennessee. Angler visits were highest during the first 2 weeks and declined steadily thereafter. Anglers harvested 5,655 rainbow trout whose total lengths fell within the 80-and 280-mm size classes. The electrofishing crew caught fish in length classes between 30 and 280 mm. The adjusted preseason electrofishing catch per unit effort (CPUE) was 3.71 fish/h based on the time taken for daily preparation, travel, and electrofishing. When based on electrofishing time only, the CPUE was 5.90. The CPUE for one clerk at a creel station was projected to be substantially greater (6.70) than that for the electrofishing crew. In addition, total costs were far greater for the electrofishing crew because of equipment...Keywords
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