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Boundary Waters Quetico Forum :: Listening Point - General Discussion :: Sea Lamprey History and Control
 
Author Message Text
arctic
02/15/2025 01:59PM
 
okinaw55: "Yet they found there way around Niagara Falls. Through time they have found a way. I'm just curious if it's a current or potential issue."


They bypassed Niagara via the Welland Canal.
 
okinaw55
02/17/2025 12:24AM
 
LindenTree: "
Okinaw, "The Fish Thief: A Great Lakes Mystery"



Watched it today, that was good and interesting."

glad you enjoyed it
 
GunflintTrailAngler
02/17/2025 10:29AM
 
Sea Lamprey got to the Great Lakes through the welland canal. They aren’t very strong swimmers, and are usually stopped by the first minor barrier. Which is why low head dams are effective at stopping them. Personally, I don’t think they could survive in most inland waters. There are 3 or 4 native lamprey species in Minnesota, and are very common in the big river systems. And they are pretty harmless to the rest of the fish.
 
inspector13
02/14/2025 05:40PM
 
I don't think they can get beyond the dams on the St. Louis river.


 
okinaw55
02/14/2025 07:02PM
 
LOL on the beer recipe.
 
Pinetree
02/14/2025 06:51PM
 
Sea Lamprey are not found in any inland lake,we do have the Silver lamprey which I have seen in Quetico. They are parasitic as a adult,but usually do not cause yhe death to fish like the sea lamprey. silver lamprey-their ugly and slimy
 
okinaw55
02/14/2025 06:52PM
 
Yet they found there way around Niagara Falls. Through time they have found a way. I'm just curious if its a current or potential issue.
 
Pinetree
02/14/2025 06:55PM
 
lamprey
 
LindenTree
02/15/2025 03:33PM
 

Okinaw, "The Fish Thief: A Great Lakes Mystery"


Watched it today, that was good and interesting.
 
okinaw55
02/13/2025 07:01PM
 
I just watched a very good documentary on the history of sea lamprey and how they became a parasitic problem in the Great Lakes. It's on Amazon Prime and called "The Fish Thief: A Great Lakes Mystery".

WTIP posted an article last year about current lamprey issues in MN rivers that are close to or are in the BWCA.
https://wtip.org/sea-lamprey-discovered-in-more-north-shore-rivers-as-reports-of-the-invasive-species-increase-in-parts-of-lake-superior/

Are these parasites invading BWCA waters? Has anyone seen evidence of them on caught fish? What are your thoughts on the use of TFM (3-trifluoromethyl 4-nitrophenol) and it's yet to be thoroughly investigated effect on humans. Eager to hear replys.