These are believed to have independent influences on the sea lamprey behavior. Jawless fishes include brook lamprey, river lamprey, sea lamprey. Invasive species like the alewife and sea lamprey can be found in the Great Lakes. The western clawed frog appears to have two orthologs, and the sea lamprey has seven. Other examples of anadromous fishes are sea trout, three-spined stickleback, sea lamprey and shad. A major threat to the lake whitefish is an invasive parasite species, the sea lamprey. For generations our countries have worked cooperatively to reduce, and control, sea lamprey numbers. The sea lamprey has an eel-like body without paired fins. Sea Lamprey will be controlled by a specific lampricide known as TFM. Sea Lamprey spends a good chunk of their lives filter feeding on larvae. TFM kills sea lamprey largely; as the TFM has little to no impact to fish. The sea lamprey ("Petromyzon marinus") is a parasitic lamprey native to the Northern Hemisphere.