This past summer a group of us got into the most unreal lake trout fishing imagineable. At what passes for night on the solstice in central Alaska, the red salmon smolts leave the big lakes they have been living in for a year or so and head downstream. That forces them to a river and schools of lake trout hang there waiting for them.

Schools of smolts would suddenly boil to the surface all around us and literally at our feet as the lakers tore into them. Big areas of river surface would erupt and the terns and gulls would start diving.

Big white flies stripped through the schools were hit every cast. It was unreal!

As it got "darker" the birds stopped flying but the smolt activity increased.

I can see where the lakers could have a profound impact on any other species around. But I cannot see where they stand a chance of getting rid of them with the jello... It may be a part of the picture and a method to control, but never eradicate them.
art