Advertisement

Report Shows Mixed Results on Great Lakes Lamprey Control

Sea lampreys at the 2018 boat show Sea lampreys at the 2018 boat show |  Photo: WDIO, File

Created: November 12, 2019 11:30 AM

ANN ARBOR, Mich. (AP) - Officials say populations of fish-killing sea lamprey remain at near-historic lows in Lakes Michigan and Ontario but are above target levels in Lakes Huron, Superior and Erie.
    
The Great Lakes Fishery Commission issued a progress report Tuesday on containing the parasitic lampreys, which invaded the lakes in the last century from the Atlantic Ocean and threatened trout and other native species.
    
They use suction-cup mouths and razor-sharp teeth to feed on blood and body fluids of other fish, usually killing their hosts.
    
Crews use specially designed poisons and traps to control lamprey numbers.
    
The commission says Lake Huron populations are close to target levels and have held steady the past five years.
    
Although above target, numbers in Superior and Erie have dropped significantly since near-record highs were observed in 2017.
 

Advertisement

Copyright 2019 The Associated Press. All rights reserved.

Advertisement
Advertisement

New COVID-19 cases reported Wednesday in St. Louis, Carlton Co.

State orders adult day care centers to close

Federal judge to take testimony in Wisconsin election lawsuits

Businesses and runners react to Grandma's being canceled

Grandma's Marathon canceled due to COVID-19

St. Luke's now offering virtual visits for patients

Advertisement