Interesting article in the infisherman online about gobies & the impact on the great lakes smallmouth fisherie. The article is State of the smallmouth written by Rich Zaleski. From page three " Noted Lake Erie angler Jeff Hahn has found a pronounced shift in that lake's smallmouth population over the past decade. While smallies in the 4- to 5-pound class seem to be increasing, the numbers of young fish are falling. Many folks, including some fishery biologists, lay the blame for declines in young fish on the proliferation of the goby, he says.
While gobies have become the main diet of Lake Erie smallies, they also raid the nests of spawning fish, resulting in a population of fewer but larger fish. Years ago, a good catch in the two weeks before the spawn might have included 100 fish with an average size close to 3 pounds. The best days now may produce 35 to 40 fish. The average size of a culled limit now borders on or exceeds 4 pounds, with a few fish over 5 and frequently a 6-pounder or two. While this appears to be trading quantity for quality, the reality is that that smaller fish are much fewer and farther between.
Those not familiar with Lake Erie see that it still takes 5 fish over 20 pounds to win a one-day tournament and figure the lake's smallmouth population is in great shape. But many Erie anglers and fishery personnel are concerned about what appears to be a significant reduction in the recruitment of smallmouth. When those big fish die off, says Hahn, what will be left?
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