What is the problem? Where did that problem come from? How can the problem be solved?
2007-05-20 12:42:10 · 4 answers · asked by Maya M 2 in Science & Mathematics ➔ Earth Sciences & Geology
The Lamprey Eel, a foreign species introduced to the Great Lakes by artificial canals, is decimating the native fish populations. The eels came from the Atlantic Ocean.
In the Lakes, the lampreys have no natural predators, so they flourish and attack commercially valuable species, such as lake trout. In Europe, lampreys are considered a delicacy, but in the US and Canada, people refuse to eat them.
Humans attempt to control the lamprey population in the Great Lakes by using "lampricides" which are lethal to lampreys but harmless to other fish. Authorities also erect special barriers against them. These methods of control are expensive and complicated.
They won't kill off all of the lampreys, but they do help to keep their population in check, which at this point is all that can really be done.
El Chistoso
2007-05-20 12:58:51 · answer #1 · answered by elchistoso69 5 · 0⤊ 0⤋
Invading species that wipe out resident species. They come up the St. Lawrence river or from people introducing them in rivers and smaller lakes.
2007-05-20 19:49:17 · answer #2 · answered by Mike1942f 7 · 2⤊ 0⤋
The problem is zebra mussels. The problem probably came from elsewhere. Solution is still being worked on.
2007-05-20 19:52:39 · answer #3 · answered by navig8r 3 · 0⤊ 0⤋
invasive species, water held in the ships coming in, dump the water before entering the lakes or treating it before dumping it
2007-05-20 23:36:34 · answer #4 · answered by cloe 1 · 0⤊ 0⤋