Eric Sharp: Good, bad news on lampreys
Tests of chemical signals called pheromones prove they can trick sea
lampreys to avoid streams that offer good spawning habitat and lure them
to streams where baby lampreys won't survive.
"It's hard to see
any good news when it comes to invasive species, but the sea lamprey is
one case where we're winning the battle," Dr. Marc Gaden said this week
during a briefing on new lamprey control efforts by the Great Lakes
Fishery Commission and other agencies.
That's the good news.
not-so-good news, at least in the short run, is what the scientists
learned when they tried a full-count press on the handful of rivers and
creeks that were thought to produce most of the lampreys in Lake Erie.
Rescued sailor, 84, unsure of another trip
PORT CLINTON -- Stranded on a sailboat with broken rigging and a swaying
mast in the Pacific Ocean, 84-year-old Tom Corogin realized his dream
of completing a solo voyage around the tip of South America was over,
It was his sixth attempt and one of the most difficult trips yet.
suffered an infected puncture wound to his leg and required hospital
treatment in Ecuador. He sailed through a terrible storm south of Mexico
and was forced to activate his emergency beacon for the first time, in
remote waters about 500 miles south of Easter Island.
In the end, Corogin was rescued Jan. 3 by a Japanese cargo ship and the Chilean navy but was forced to leave his boat behind.
a lawyer who still practices part-time, arrived back at his home along
Lake Erie almost three weeks ago. He had set sail Dec. 27 from Easter
Island on the last leg of his Cape Horn adventure when his rigging
snapped, leaving him stranded in desolate waters. more...
Living with Michigan's wolves
Gray wolves in the western Great Lakes were recently taken off the
endangered species list. Now, the state of Michigan is responsible for
managing the wolf population.
Michael Nelson is a professor of environmental ethics at Michigan
State University. He’s an author of a new report on people’s attitudes
about wolves in Michigan. His report is based on a statewide telephone
survey conducted in 2010.
Nelson says they asked people throughout the state how they felt
about the following four statements (on a five point scale from strongly
disagree to strongly agree): more...
Politicians flounder while Asian carp spawn a threat
Should the Great Lakes and Mississippi River basins be separated, even if the work costs as much as $9.5 billion? You bet.
Will it happen? Probably not.
A new engineering analysis shows that such a massive task could be
completed for the price of some big-city road and tunnel projects. Yet
it remains doubtful the Obama Administration and the President's home
state of Illinois have the political will to get behind such a plan.
The study was done to light a fire under the U.S. Army Corps of
Engineers. The Corps has given itself until 2015 to develop options for
the Chicago Area Waterway System. more...
Chemical levels in Saginaw Bay fish depend on where they hang out
|Male walleye in the Saginaw Bay really need to start taking a cue from
their female counterparts and hang out in a better neighborhood.|
about to be published by the Journal of Great Lakes Research found male
walleye contain three times more flame retardant chemicals than
females. The chemicals, polybrominated diphenyl ether (PBDE’s), have
been used in plastics, foams and fabrics as flame-retardants since the
1970’s. Animal tests suggest they could damage the liver, thyroid and
brain, according to the EPA.
The reason: The males are hanging out in the wrong places. more...
|Boating in cold weather can be the beginning of tragedy — if you are not
prepared. I learned this the hard way on an Ozark river several winters
ago. We were “roughing it” by fishing the cold water and camping on
sandbars at night.|
The second morning of the trip promised to be
a beautiful one with a light coating of new snow and ice on cliffs that
bordered the scenic river. I was clicking pictures of a beautiful ice
formation when the canoe just in front of us had an accident. The man in
front of the ill-fated canoe ducked under over-hanging limbs heavy with
ice. He made it, but the second man panicked and grabbed the branch.
A combination of him holding the limb and the river current made the
canoe go sideways and tip. River water came over the side, quickly
filling and sinking the canoe. Both men helplessly floated down the
river current with only their life jackets to thank for keeping them
floating. We paddled quickly to catch them, but suddenly one of the men
drifted into a huge brush pile and his head tipped under the surface. He
was an older man and too weak to pull himself up. more...
Should hunting of sandhill cranes be allowed in Wisconsin?
With long legs trailing behind in the sky, the sandhill crane
announces its arrival with a cry that hearkens back to prehistoric
times.Spotted along the river or seen
fishing in Fond du Lac County’s abundance of ponds and lakes, the
elegant bird has a great following of local enthusiasts who turn out to
count them every year. The state is home to the International Crane
But the bird’s blissful existence may soon be disturbed by the blast of
shotguns. State Rep. Joel Kleefisch, an Oconomowoc Republican and avid
duck hunter, began circulating a bill last week that would require the
DNR to create a sandhill season. more...
Lake St. Clair levels high now, but won't last, official says
There will be higher water levels than last year around Lake St.
Clair this spring, but boaters and other water lovers shouldn't think
that will last.
The lakes will be about the same depth as last year by summer, the U.S. Army Corps of Engineers predicts.
and anglers who might be expecting low lake levels because of the lack
of snowfall will be pleasantly surprised in early spring to find the
lake higher than last year.
Those higher-than-last-year levels in
lakes St. Clair and Erie in spring are more of a false positive than a
real promise of deeper water, said Keith Kompoltowicz, a Corps of
Engineers meteorologist. more...