Linked from
The 8 pages that link to Sea lamprey, each with the reason it gives.
Great LakesRelated: Its predation sharply damaged native and commercially valuable fish populations.
WalleyeRelated: Sea lamprey control transformed Great Lakes fisheries that include walleye.
Lake ChamplainRelated: Its predation has harmed valuable fish populations in the lake.
CoregonusRelated: Its spread contributed to major changes in Great Lakes fish communities.