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Entries in Great Lakes (139)

Monday
Apr242017

Michigan Offers Big Bucks for Best Way to Keep Carp Out of Great Lakes

Want to earn big bucks? Tell the state of Michigan how to keep Asian carp from invading the Great Lakes and possibly decimating the sport fishery there.

The state has allocated $1 million for the global competition, with most of it going toward a prize for the best idea. The rest will be used to publicize and initiate the campaign, expected to begin this summer.

"Somebody out there possibly could have a really good idea," said Joanne Foreman of the Michigan Department of Natural Resources. "Maybe they're not in fisheries or hydro-engineering."

Mary Flanagan with the Alliance for the Great Lakes added, "I think in the fight against Asian carp, there aren't really any bad ideas. We have to try a bunch of different things."

As silver and bighead carp spawn ever closer to Lake Michigan, the last barriers of defense are electronic barriers, but they are iffy at best. Officials fear that smaller fish could pass through them in the wakes of barges. Additionally, the best way to prevent invasion, closing the manmade connection between the Great Lakes and the Illinois River, almost certainly never will happen because of opposition from Illinois, Indiana, and power commercial navigation interests. Finally, the federal government, both under Barack Obama and Donald Trump, seems to see no urgency in developing a plan to keep the carp out.

All the other Great Lakes states, meanwhile, have pressed for years for an effective solution, with about $388 million spent since 2010, mostly by the feds. Those states have good reason to be concerned, too, as sport fishing in the Great Lakes region is worth about $7 billion annually. Michigan's tourism industry alone is valued at about $38 billion, with much of it focused on the outdoors.

Thursday
Apr132017

Feds Stall Even More on Plan to Protect Great Lakes From Asian Carp

What had been a slow walk to better protect the Great Lakes from invasion by Asian carp now has been delayed indefinitely.

The U.S. Army Corps of Engineers had been scheduled to release draft results of a study that it began in April 2015, with intent of structural or technological upgrades  at Brandon Road Lock and Dam on the Illinois River near Joliet. A final version was to be released in 2019. The area is downstream of electrical barriers, intended to repel silver and bighead carp, but which have questionable effectiveness.

But now release of the draft "has been deferred pending further coordination" with government officials and advocacy groups, according to Allen March, Corps spokesman. He added that more consultation is needed "to address things like the range of diverse ecosystems and national economies that could be impacted by outcomes of the study."

In a nutshell, Illinois, especially Chicago, and Indiana oppose any option that would include closing the manmade connection between the river and Lake Michigan or otherwise impede commercial navigation. Fearing what might happen to a billion-dollar sportfishery if the carp enter the Great Lakes, other surrounding states long have lobbied for more aggressive action.

"After a lengthy review process, which included extensive outreach and collaboration with a broad range of stakeholders, it seems that the administration has decided to side with a narrow group of special interests intent on preventing actions to address the movement of Asian carp toward Lake Michigan," said Michigan Sen. Debbie Stabenow.

And Molly Flanagan of the Alliance for the Great Lakes added that "no credible reason" exists for additional delay.

The action was announced after 16 Congressional members, mostly from Illinois and Indiana, sent a letter to President Donald Trump asking for delay until a new assistant secretary of the Army for civil works is appointed.

In a statement, the lawmakers said the Corps "should not hastily recommend a structural alternative that could negatively impact the economy and the safety of towboat crews."

They also pointed out that 5 million pounds of carp have been removed from the Illinois River and argued that the leading edge of the invasion still is well below Brandon Road. But that amount is but a small fraction of the total biomass in the waterway. Additionally, the leading edge of the invasion by mature carp might not be advancing as rapidly as it once was, but the prolific exotics continue to spawn closer and closer to Lake Michigan. And the younger, smaller fish are much more likely to penetrate the electric barriers, possibly riding through in the wake of barge traffic.

Silver carp (top) and bighead carp.Do You Have a Better Idea?

Want to earn big bucks? Tell the state of Michigan how to keep Asian carp from invading the Great Lakes and possibly decimating the sport fishery there.

The state has allocated $1 million for the global competition, with most of it going toward a prize for the best idea. The rest will be used to publicize and initiate the campaign, expected to begin this summer.

"Somebody out there possibly could have a really good idea," said Joanne Foreman of the Michigan Department of Natural Resources. "Maybe they're not in fisheries or hydro-engineering."

Mary Flanagan with the Alliance for the Great Lakes added, "I think in the fight against Asian carp, there aren't really any bad ideas. We have to try a bunch of different things."

As silver and bighead carp spawn ever closer to Lake Michigan, the last barriers of defense are electronic barriers, but they are iffy at best. Officials fear that smaller fish could pass through them in the wakes of barges. Additionally, the best way to prevent invasion, closing the manmade connection between the Great Lakes and the Illinois River, almost certainly never will happen because of opposition from Illinois, Indiana, and power commercial navigation interests. Finally, the federal government, both under Barack Obama and Donald Trump, seems to see no urgency in developing a plan to keep the carp out.

All the other Great Lakes states, meanwhile, have pressed for years for an effective solution, with about $388 million spent since 2010, mostly by the feds. They have good reason to be concerned, too, as sport fishing in the Great Lakes region is worth about $7 billion annually. Michigan's tourism industry alone is valued at about $38 billion, with much of it focused on the outdoors.

Thursday
Feb162017

That's Not a Goby . . . THIS Is a Goby!

Fish in the top photo is a round goby, an exotic fish introduced to the Great Lakes in the ballast water of ocean-going ships. They grow to about 6 inches maximum, but 3 to 4 inches is the norm. Also, they have proven to be among the favorite forage for smallmouth bass, and anecdotal evidence suggests that they are growing faster and larger on a goby diet.

Fish in the bottom photo is the world record marbled goby, caught in Thailand by John Merritt. It checked in at 5 pound, 3 ounces. IGFA says that it is "likely the largest of gobies." And with a mouth like that, it likely could turn the tables on some of those smallmouth bass that are eating its smaller, globe-trotting cousin.

You can see more "weird world records" at Sport Fishing.

The International Sport Fishing Association (IGFA) is the official record keeper for both fresh and saltwater species. You can see the full list here. For line class records and additional information, you must become a member.

Sunday
Feb122017

Tons of Plastic Degrade Great Lakes, Potentially Harmful to Fish, Widlife 

Nearly 22 million pounds of plastic debris enter the Great Lakes annually from the United States and Canada, according to a recent study by the Rochester Institute of Technology (RIT).

"This study is the first picture of the true scale of plastic pollution in the Great Lakes," said Matthew Hoffman, an assistant professor in mathematics and the lead author of "Inventory and Transport of Plastic Debris in the Laurentian Great Lakes."

Hoffman used computer simulations to follow the volume of plastic debris moving across both state and international boundaries, with nearly half going into Lake Michigan. Lake Erie followed a distant second with 5.5 million pounds, while Lake Ontario had 3 million, Lake Huron 1.3, and Lake Superior the least at about 70,000 pounds.

To put that into perspective, annual pollution in Lake Michigan is the equivalent of 100 Olympic-size pools full of plastic bottles, while that for Ontario equates to about 28.

While bottles and other plastic pollution accumulate in gigantic "garbage patches" in the oceans, winds and currents mostly carry them to shore in the Great Lakes.

"Plastic accounts for approximately 80 percent of the litter on the shorelines of the Great Lakes," RIT said in announcing the report. "The study quantifies dense plastic that quickly sinks and surface plastics like microbeads, fragments and pellets, plastic line, and Styrofoam, which could be consumed by wildlife and potentially enter the food chain."

Estimates of these tiny plastic particles floating or suspended in the lakes range from nearly 10,000 pounds in Erie to 436 pounds in Superior.

"We know some of the plastic sinks. But when we input the numbers, this is the amount that's floating near the surface," Hoffman said, adding that these microplastics are most likely to end up in fish and other aquatic life. "But we also don't know a lot about what happens to the plastic that doesn't float and where it ends up."

Meanwhile, researchers at the University of Wisconsin-Superior warned that these pollutants could pose a serious threat to aquatic ecosystems in 2013. And both the United States and Canada are working toward stopping production and sale of personal care products that contain tiny plastic beads, which wash down drains, pass unfiltered through treatment plants and enter the Great Lakes and other waterways.

Not surprisingly, Hoffman and his team revealed that major population centers are the primary sources of pollution, with Chicago, Toronto, Cleveland, and Detroit releasing more plastics than accumulate on their adjoining shorelines.

"Most of the particles from Chicago and Milwaukee end up accumulating on the eastern shores of Lake Michigan, while the particles from Detroit and Cleveland end up along the southern coast of the eastern basin of Lake Erie," Hoffman said. "Particles released from Toronto appear to accumulate on the southern coast of Lake Ontario, including around Rochester and Sodus Bay."

Thursday
Feb092017

Asian Carp Spawning Closer to Great Lakes

Asian carp have moved no closer to the Great Lakes during the past few years. They remain about 50 miles away. But they are spawning closer, and that's bad news.

"The bottom line is that the juvenile front is advancing, and made a big jump last year," said Joel Brammeier of the non-profit Alliance for the Great Lakes. "And we still don't have a permanent solution in place that's going to solve the problem."

That "big jump" was 90 miles.

Two electrical barriers and three locks and dams on the canal/river system serve as the final protection for Lake Michigan. Thus far, they have effectively blocked adult silver and bighead carp. But the smaller ones are much more likely to slip through in the wake of commercial barge traffic, which also can disrupt the effectiveness of the barriers.

"It seems like the wolves are at the door, and the door is still opening and closing," said Daniel O'Keefe of Michigan Sea Grant.

Meanwhile, a third electrical barrier is being constructed upstream of the other two, which are about 35 miles south of Lake Michigan. Intent is to make it more effective against juvenile fish, according to Charles Wooley, deputy director of the U.S. Fish and Wildlife Service's Great Lakes Region.

"There are no fish that are probing these electrical barriers on a daily basis," he added. "The closest these fish are is about 15 to 20 miles downstream, and that leading edge hasn't really changed much in the past five or six years."