The Stonehedge of Lake Michigan

Lake Michigan — April 29, 2019

In 2007, a researcher was scanning the depths of Grand Traverse Bay in Northern Lake Michigan looking for shipwrecks. His name is Mark Holley, and he is a professor of underwater archaeology from Northwestern Michigan College, a public community college in Traverse City. What he found was even more remarkable than a rusted hull or the wooden beam of an old sailing ship.

Holley documented a formation of stones that appear to have been set in a specific order. The size, shaping, and placement of the stones seem to indicate they are not naturally occurring. If that is the case the stones must have been placed when the lake bed was dry, around the end of the last ice age. read more

This is one of those stories the internet loves. Tons of speculation, shreds of proof, all mixed with unexplainable circumstances. Did you know Lake Michigan has a spot on its sandy bottom where there appears to be a man-made stone formation?

Lake Michigan
Lake Michigan

Fish wholesaler gets year for illegal trout

CHARLEVOIX, Mich. (AP) — A fish wholesaler in northern Michigan has been sentenced to a year in custody after pleading guilty to acquiring trout that were illegally caught in the Great Lakes.

Federal Judge Paul Maloney says John Cross III of Charlevoix can serve his sentence in the off-season. He appeared in court Monday, months after pleading guilty to a misdemeanor.

The government says Cross and his business, Cross Fisheries, bought about 50,000 pounds of lake trout from a fisherman who was using so-called trap nets. Those fish should have been thrown back into the water.

Separately, Cross’ business pleaded guilty to a felony. The judge will hold another hearing to determine a financial penalty.

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Share your thoughts with the DNR at upcoming meetings

March 21, 2019

Share your thoughts with the DNR at upcoming meetings

The Department of Natural Resources is committed to providing Michigan citizens the opportunity to share input and ideas on policy decisions, programs and other aspects of natural resource management and outdoor recreation opportunities. One important avenue for this input is at meetings of the public bodies that advise the DNR and, in some cases, also set policies for natural resource management

Conversations and Coffee fisheries meetings

In addition, the public is invited to join DNR Fisheries Division staff at Conversations & Coffee events this spring for an informal opportunity to discuss local issues and management activities, and to get specific questions answered. More information is available at www.Michigan.gov/Fishing or by contacting Elyse Walter at 517-284-5839.

  • April 2, 6 to 7:30 p.m., Tahquamenon Area Public Library, Newberry
  • April 4, 6 to 7:30 p.m., Holiday Inn Express Munising-Lakeview, Munising
  • April 8, 6 to 8 p.m., Wolf Lake State Fish Hatchery Visitor Center, Mattawan
  • April 9, 2 to 3 p.m., webinar for those interested in southern Lake Huron waters, register online
  • April 9, 6:30 p.m., Bay City State Park Visitor Center, Bay City
  • April 10, 6:30 to 8 p.m., Waterford Fisheries Station, Waterford
  • April 16, 6 p.m., Lake Superior State University, Sault Ste. Marie
  • April 23, 6 to 8 p.m. (CDT), Gogebic Community College, Ironwood
  • April 24, 7 to 9 p.m., Ishpeming Township Hall, Ishpeming
  • April 25, 7 to 9 p.m., Portage Lake District Library, Houghton

April meetings

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Boating Safety Certificate Advocates urge boaters to ‘Spring Aboard’ this season

Michigan Boating Safety Certificate

Online or classroom

www.boat-ed.com/michigan

www.boaterexam.com/usa/michigan

The reminder is in line with the National Association of State Boating Law Administrators Spring Aboard – Take a Boating Education Course campaign (March 17-23). Many states require completion of a NASBLA-verified course to rent or operate a powerboat. In Michigan, boaters born after June 30, 1996, must have a boating safety certificate to operate a boat, and boaters born after Dec. 31, 1978, need a boating safety certificate to operate a personal watercraft.

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Piping plovers return to Lake Erie

Piping plover nests were found on the shores of all five Great Lakes last year for the first time since 1955.

The shore-dwelling bird disappeared from most of the Great Lakes in the 1980s and was listed as endangered in 1986, said Vince Cavalieri, the Great Lakes piping plover recovery coordinator for the U.S. Fish and Wildlife Service.

At one point, up to 600 pairs nested throughout the Great Lakes. In 1990, only 12 pairs remained. Once found on sandy beaches from Wisconsin to Pennsylvania, most of the survivors were clustered around the Sleeping Bear Dunes on Lake Michigan’s northwest shore.

But with the discovery of a nesting pair in Pennsylvania’s Presque Isle State Park last year–the first to take up residence on Lake Erie for 60 years–the winds have changed. Researchers found 76 nesting pairs throughout the Great Lakes region in 2017.Piping Plover

Two projects on the shores of Lake Michigan have already found success developing plover-friendly habitat: one at Wilderness State Park on the northern shore of Michigan’s Lower Peninsula, the other on a series of eroded islands in Wisconsin’s Lower Green Bay.

Results came quickly. The park staff started clearing brush and trees from the shore in 2014, DeLoria said. In the summer of 2015, they observed a pair that had nested there. In 2016, that same pair returned to raise three chicks.

Efforts to restore beaches on the Cat Island Chain in the Lower Green Bay have brought similar success, said Reena Bowman, the U.S. Fish and Wildlife Service’s Minnesota and Wisconsin Great Lakes piping plover lead.

“The species came back like immediately,” she said. “It was kind of a ‘build it and they will come’ kind of thing. And it wasn’t just plovers.”

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Apply to be a Keeper at Tawas Point Lighthouse

Apply to be a lighthouse keeper at Tawas Point Lighthouse. Get together with one, two or three friends for a service and recreation vacation like no other. 

Tawas Point Lighthouse

Tawas Point Lighthouse

In operation since 1876, Tawas Point Lighthouse is a fascinating attraction for maritime buffs. Tawas Point is a destination for birdwatchers; it also offers spectacular views of sunrises over Lake Huron and sunsets over Tawas Bay.

Lighthouse keeper program read more

Status of Sea Lamprey in the Great Lakes

Part of a successful sea lamprey control program is monitoring adult sea lamprey abundance in each lake and sea lamprey impacts on fish; the sea lamprey marking rate on lake trout, their preferred host, is used to assess impacts on fish. To better understand the relationship between sea lamprey abundance and marking rates on lake trout, the number of lake trout also needs to be assessed (i.e., the number of lake trout can influence the marking rate).

Sea lamprey populations are monitored by generating an adult sea lamprey abundance index for each lake. The index is calculated by assessment crews who capture migrating adult sea lamprey in index streams with traps during the spring and early summer. A mark-recapture study is conducted on each index stream to generate a population estimate. Individual index stream population estimates are then summed to create the lake-wide adult sea lamprey abundance index. Whole-lake adult sea lamprey abundance estimates can be calculated by multiplying the lake-wide index by a lake-specific conversion factor. Lake trout marking and abundance data are collected annually from management agencies around the Great Lakes to generate lake-wide marking rates and population estimates.

Success in meeting targets for both the adult sea lamprey abundance index and sea lamprey marking rates on lake trout is determined by assessing the 3-year average index or marking rate compared to the targets. There are no targets for lake trout abundance in the context of reporting sea lamprey status. The trend of the adult sea lamprey abundance index, sea lamprey marking rate on lake trout, and lake trout abundance is determined by the direction of the slope over the past five years. Single year point estimates fluctuate and can have wide error bars, thus the focus on 3-year averages and 5-year trends.

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Could the sounds of spawning lure lake trout?

Lake trout make noise in bed, according to new research by Great Lakes scientists.

The species commonly growl, snap, quiver and thump while spawning, according to a study in the “Canadian Journal of Fisheries and Aquatic Sciences.”

The report may cause a smirk, but researchers say the findings are serious.

“Peeping on spawning lake trout with a camera and microphone could be the premise of an interesting comedy skit, but also makes for interesting science that could help improve how fish populations are monitored,” said Nick Johnson, an ecologist with the U.S. Geological Survey.

Scientists could potentially use the audio sounds to lure fish to spawning areas, Johnson said.

Lake Trout

Lake Trout

“If you walk down the street and hear a party going you might want to check it out,” he said. “There are historical reefs in the Great Lakes that are no longer being used for spawning . . . we may be able to play back the sounds of reproduction to lure in the trout and try to get them interested in spawning there.”

Johnson led a team that included researchers from Michigan State University, the University of Windsor and the University of Vermont, and that recorded spawning lake trout with cameras and hydrophones. Hydrophones are underwater microphones that detect the sounds of boats, waves and the quietest fish.

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Charter fishing operations offer great options for novice and experienced anglers

For those who don’t have a fishing boat, may not have the correct fishing gear, don’t know how to fish, are new to an area, or are just looking for a day of fun, the Michigan Department of Natural Resources suggests considering a charter fishing trip. Charter fishing businesses are located throughout the state and offer a great way to experience Michigan’s world-class fisheries.

Lake Erie walleye charter aboard the Stray Cat Monroe, MI 48145

Sam walleye fishing Lake Erie

Licensed fishing charters make a full or half-day of fishing easy and enjoyable, as they provide the boat and all the equipment, plus the knowledge needed for a day on the water. Fishing charters are for anyone, children or adult, from the first-time angler to those who are experienced. Charter businesses in Michigan help anglers of all experience levels enjoy memorable experiences – whether it’s reeling in a fish for the first time or trying one’s hand at catching a new species.

In Michigan in 2016, more than 70,000 anglers participated in more than 17,000 charter fishing trips on Great Lakes and specific navigable waters. These anglers caught more than 244,000 fish of various species, with about half of the fish caught being trout and salmon.

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Tagged fish provide DNR with critical information

The Michigan Department of Natural Resources again this year is encouraging Great Lakes anglers who catch marked and tagged fish to report them. The DNR has used the coded-wire tag program to mass mark various fish species in Michigan since the 1980s. Mass marking provides critical data as fisheries biologists look to determine the value of naturally reproduced fish versus stocked fish, and lakewide movement of fish.

The coded-wire tag program involves implanting a small, coded-wire tag, which is invisible to the naked eye, into the snout of a fish. A fish containing a coded-wire tag can be identified because its adipose fin (the small, fleshy fin between the dorsal and tail fins) has been removed. An angler who catch a tagged fish then can record needed information about the fish, remove and freeze the fish’s snout, and drop it off at a designated location. A statewide list of dropoff locations can be found on the DNR website.

For years the DNR primarily tagged Chinook salmon and lake trout as part of its mass marking effort in Lake Huron. Tagging these fish has helped biologists understand more about lakewide natural reproduction and how many wild fish are available in the Great Lakes. It also has helped determine if the percentage of wild fish varies from year to year and how fish stocking locations contribute to lake and river fisheries. Additionally, it provides insight into fish movement and where fish are stocked compared to where they are caught.

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