[DOC] [TLE] GLFC - Sea Lamprey - Great Lakes Fishery Commission [PAR] Sea lampreys (Petromyzon marinus) are parasitic fish native to the Atlantic 
Ocean. ... While sea lampreys resemble eels, they are not related and are set 
apart by ... by secreting an enzyme that prevents blood from clotting, similar to 
how a leech ... Sea lampreys prey on most species of large Great Lakes fish such 
as lake... [DOC] [TLE] Alien Invasion A Great Lakes Dilemma - National Wildlife Federation [PAR] Aug 1, 2007 ... Some 180 exotic species have found their way into the lakes during the past ... 
soon move into the Great Lakes, where experts already have tallied more ... the 
Welland Canal in 1829 opened a waterway between Lakes Ontario and Erie, ... 
Lampreys are eel-like, jawless relics from the earliest days of fishes. [DOC] [TLE] Invaders of the Great Lakes - University of Wisconsin Sea Grant ... [PAR] annually. This guide describes the top invasive threats to the Great Lakes ... This 
guide is the product of a partnership among the programs of the ... boating waters 
so we can ensure they are here for this generation and ... I have never seen 
fishing as good as it ... watermilfoil to many fish species, there seems to be no 
end. [DOC] [TLE] 10 invasive species threatening Canadian habitats - Technology ... [PAR] Feb 23, 2012 ... Evidence of the invasive species has been found in the Great Lakes, but to ... 
plants that make up the habitats where fish, birds and animals feed, ... In some 
locations, purple loosestrife has also begun invading dry habitats like pastures ... 
In Canada, it was first found in 2003 in an industrial park between... [DOC] [TLE] Pollution by Invasive Species - river, sea, oceans, effects, important ... [PAR] Here a fish-market vendor displays a snakehead, which is a popular food item in 
parts of Asia. ... Scientists fear a significant threat to aquatic ecosystems and 
native species, ... Exotic amphibians and tropical fish also are found throughout 
Florida. ... This thumbnail-sized mollusk was introduced into the Great Lakes in 
the... [DOC] [TLE] EEK! - Alien Profile: Sea Lamprey [PAR] The Sea Lamprey has invaded the Great Lakes, find out how it happened and 
what is ... They are 12-20 inches long and eel-like. ... Freshwater lampreys are 
also found in Wisconsin's waters. ... Their are four species of native lampreys 
including: ... Freshwater eels are not parasitic and won't attach to fish or suck their 
blood. [DOC] [TLE] Sea Lamprey | Ontario's Invading Species Awareness Program [PAR] The sea lamprey is a primitive, eel-like fish native to the northern Atlantic Ocean 
... Sea lampreys invaded the Great Lakes in the early 20th century through 
shipping canals. ... Today sea lampreys are also found in all of the Great Lakes. 
... Invasive Species: A Threat to Ontario's Biodiversity  Invasive Species Centre  
Great... [DOC] [TLE] Great Lakes Under Stress: Invasive Species as Agents of Ecosystem ... [PAR] Following a brief introduction to the Great Lakes ecosystem, the case study 
describes several key ..... The sea lamprey is a predatory, eel-like fish native to 
the. [DOC] [TLE] Introduced Species Summary Project - Columbia University [PAR] Oct 29, 2001 ... Common name: Sea Lamprey (lake lamprey, lamprey eel, stone-sucker, ... 
However, the Grand River prevented further invasion of the ... As they did not 
evolve with naturally occurring Great Lakes fish species, their aggressive, ... fish 
prey, including the top predators of the lake ecosystem like the lake trout. [DOC] [TLE] Great Lakes Resource at Risk - NCBI - National Institutes of Health [PAR] For centuries the Great Lakes have been treated callously These five ... channels 
to crisscross the lakes, and that import exotic species along with their intended 
cargo. .... They are mixed into sediments on the lakes' floors, where they can be 
.... eel-like fish that sucks bodily fluids from other fishhad invaded all of the 
lakes. [DOC] [TLE] Aquatic Nuisance Species - Connecting the Coasts: Investigate [PAR] The AIS that are currently the greatest threat to

Question: This eel-like fish seen here is the biggest threat among species invading the Great Lakes
Answer: the lamprey eel