Yellowstone Lake Trout Suppression Program

Our objective was to evaluate the efficacy and costbenefit of targeting aggregations of telemetered Lake Trout by using gill nets during the summer when catch rates of.

Yellowstone lake trout suppression program. The specific activity currently conducted to preserve Yellowstone Lake cutthroat trout is the lake trout suppression program which is one of the largest non-native fish removal programs occurring in the United States. Gill nets are used for this process. Gill nets have been the primary tool for capturing lake trout and up to 20 kilometers.

Funding for all aspects of the program comes from NPS Yellowstones nonprofit partner Yellowstone Forever and Wyoming Trout Unlimited among others according to Koel. Panels of net extend upward from the bottom of the lake about six to eight feet high and for many miles. 22112019 The primary activity of Yellowstones Native Fish Program is removal of the lake trout from Yellowstone Lake and this is the seventh year in a row of aggressive netting efforts on the lake.

Gill nets are used for this process. Lake Trout Response to Increased Suppression Efforts. Lake Trout should increase the efficacy of the Lake Trout suppression program in Yellowstone Lake and may be useful in the suppression of other aquatic invasive species.

However new strategies to maximize program effectiveness include destruction of lake. Evaluate the effectiveness of the lake trout suppression program. Despite the very substantial lake trout suppression program in recent years the landing rate of cutthroat trout has not exceeded one fish per hour since 2001 Koel et al.

More than 34 million lake trout have been removed from Yellowstone Lake since 1994. Panels of net extend upward from the bottom of the lake about six to eight feet high and for many miles. Since lake trout were first discovered in 1994 more than 34 million have been removed from Yellowstone Lake through suppression gillnetting.

Scientific Review Panel Evaluation of the National Park Service Lake Trout Suppression Program in Yellowstone Lake. The objective of the panel was to critically evaluate the lake trout suppression program in Yellowstone Lake including its effects on lake trout and Yellowstone cutthroat trout populations and associated ecosys-tem responses and provide direction for future suppression and recovery activities. Invasive predatory lake trout Salvelinus namaycush were discovered in Yellowstone Lake in 1994 and caused a precipitous decrease in abundance of native Yellowstone cutthroat trout Oncorhynchus.