Intense Aquatic Nuisance Species Work Continues

Statewide monitoring efforts for aquatic nuisance species in 2013 resulted in only one new infestation – curly-leaf pondweed in Grass Lake in Richland County.


North Dakota Game and Fish Department ANS coordinator Fred Ryckman said for the second consecutive year, no zebra mussels were detected in the Otter Tail and Red rivers at Wahpeton, where immature zebra mussels were found in both 2010 and 2011.


“This is encouraging news,” Ryckman said. “However, adult zebra mussels discovered last year in Minnesota’s Otter Tail drainage continue to move closer to North Dakota. In addition, adult zebra mussels were documented this fall in Lake Winnipeg, which is of great concern to Manitoba officials.”


Statewide monitoring efforts also indicated known populations of ANS in existing North Dakota water bodies are generally stable, and in some instances are even in decline. Ryckman said a few adult silver carp were again observed in the James River below Jamestown Dam, after having moved upstream into North Dakota during the extremely high flows in 2011.


Game and Fish will continue intensive monitoring for ANS in 2014. In addition, the department will also continue its ANS information and education campaign, and enforcement efforts, with the intent of full compliance with existing rules and regulations.