Salmon fishing charter on Lake Michigan out of Kenosha Wisconsin on the "Nicole Lynn" of Lucky Lyle Fishing Charters, 41' Viking. Captain Tom and first mate.
Deploying multiple tools key to stopping Asian carp advance, researchers say
Lopez still charters boats for trout and salmon fishing on Lake Michigan in the summers, but said he fears losing that business too if carp continue their advance unchecked. "I'm here at ground zero," Lopez said. "The angling experience isn't as good
With a slew of methods, from electric barriers to noise cannons and "fences" made of carbon dioxide, researchers hope to keep Asian carp at bay. Layering multiple approaches is the closest thing to a solution, said Jon Amberg, a research fish biologist for the U. S. Geological Survey's Upper Midwest Environmental Sciences Center. "One of them might be 90 percent effective," he said, "but when you have five of them that are all 90 percent effective working together — you're pretty close to 100 percent. Few of Illinois' 44,000 miles of streams and rivers are free of Asian carp, experts say, and federal estimates put 3. 1 million pounds of the fish in the lower reaches of the Illinois River alone. That data also illustrates how Asian carp have continued their advance upstream in recent years. Regional natural resource experts have spent between $40 million and $50 million annually searching for solutions to keep the fish out of the Great Lakes, already home to 186 invasive species of plants and animals such as sea lampreys and zebra... From there, they say, little would stop them from entering and monopolizing tributaries and river systems in Wisconsin, Michigan, Indiana and Canada. Some of those efforts have staved off the species' leading edge, said Dan Stephenson, a longtime biologist and chief of fisheries at the Illinois Department of Natural Resources. Guy Lopez, who runs local charter fishing company Wild Dog Tackle and Good Guyde Service, said the carp's notoriety has cost him customers who used to fish on the Illinois River. He said the spot where he brings groups, near Starved Rock, is not what it once was as sauger and walleye have begun to disappear. Lopez still charters boats for trout and salmon fishing on Lake Michigan in the summers, but said he fears losing that business too if carp continue their advance unchecked. "The angling experience isn't as good as it used to be. ". Ultimately, wiping Asian carp from where they are already established is probably a pipe dream, Amberg said. But removing even half the population would reopen waters for native fish such as walleye, bass and bluegill to rebound. "It's an incredibly challenging feat, but the more tools we're able to provide, the better off they're going to be," Amberg said. He said targeting Asian carp has been a long staircase of testing solution after solution. If you pay attention to the steps that are right in front of you … next thing you know you're only a couple steps away — and that's where we are now. We're now at a point where we're seeing a light at the end of the tunnel," he said. Asian carp, first introduced in the South 40 years ago to clear algae from catfish ponds, are incredibly fertile, face few predators, and tend to eat so much plankton that they starve out native species. Their takeover poses economic risks in addition to ecological ones, because they could reduce revenue for tourism and recreation sectors if they swim their way into the Great Lakes. Tackling Asian carp could damage industry just as easily — namely the shipping industry — unless researchers find a way to block the fish while still allowing rivers and canals to connect freely to Lake Michigan. One method that has met those criteria involves electrodes installed at the bottom of waterways to create an electric field that repels or stuns fish. In 2002, the U. S. Army Corps of Engineers activated the first such electric barrier in the Chicago Sanitary and Ship Canal, and three are now in operation. As a baseline deterrent, the electric barriers have been incredibly effective, according to Chris Drew, commander of the Army Corps' Chicago District. Still, engineers have had to address a few potential glitches: the voltage's weakness when it comes to small fish, for one, and the possibility that barge traffic could drag fish across the barrier. The theory underlying new tools being explored by researchers is an ancient one, according to Amberg. "Know thy enemy," he said, citing a proverb by the ancient Chinese general Sun Tzu. By tapping into general fish biology as well as certain unusual physiological features of Asian carp, solutions such as fences made of carbon dioxide, acoustic barriers and targeted poison have shown promise. In studies conducted this summer, researchers demonstrated that aquatic species — be it Asian carp or other native fish — will swim away from carbon dioxide-infused water and toward oxygen-rich areas.
Baby Huey's Famous Boat Grub (brown sugar, rice, oil, onions, pork chops, cheddar cheese)
Lighten-Up Whatever Floats Your Boat Brownies #32204 (applesauce, eggs, flour, salt, sugar, cocoa powder, vanilla extract)
Stewed Beef Boat Noodle Soup Gkuay Dtiow Lauy Recipe (beef, bean sprouts, cilantro, hot pepper, fish sauce, garlic oil, garlic, green onion, galangal, sirloin steak, beef, rice noodles, lemongrass, cilantro, anise seed, sugar, white pepper, sea salt, soy sauce, water)
Bass Lake Fruit Smoothies (cranberry juice, ice, vanilla yogurt)
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