Current Rotenone Projects in Alaska

Anderson and Kings Lakes Restoration

Northern pike are not native to the Mat-Su Drainage and were introduced to the Yentna Drainage by an angler in the 1950’s. Dispersal and further illegal introductions have led to their widespread distribution throughout the Mat-Su Valley. In the Cottonwood Creek drainage, they were illegally introduced to Anderson and Kings lakes in the 1990’s. These two water bodies are at the headwaters of the drainage which provides valuable trout and salmon habitat. Historically, Kings and Anderson Lakes supported a trophy rainbow trout fishery along with rearing juvenile coho salmon; however, the fish assemblage in those two lakes are now completely dominated by northern pike. Because of a seasonal connection to Cottonwood Creek and a temporary fish passage barrier installed to prevent their spread, northern pike are not known to occur in Cottonwood Creek drainage outside of these two lakes. After considering various options, ADF&G concluded the northern pike in these two lakes were a high priority for eradication. The most effective tool for northern pike eradication is by treatment with rotenone which will result in a safe, cost efficient, and permanent solution to the northern pike problem in these two lakes. Following this treatment, the lakes will be stocked with rainbow trout to restore the trout fishery along with reintroduction of naturally occurring species such as longnose sucker and stickleback which are important forage fish for wildlife.

ADF&G has written an environmental assessment for the restoration of Kings and Anderson Lakes and is now soliciting public comments. Public comments will be accepted during the period of May 27, 2020 through June 25, 2020. Written comments for the EA can be submitted to the following address by email, postal mail, or fax:

Parker Bradley
1801 S. Margaret Dr. Suite 2
Palmer, AK 99645
Fax: 907-746-6305

Any questions regarding the project or public meeting can be directed to Parker Bradley at 907-746-6328 or