While Asian carp, the invasive fish making their way towards the Great Lakes, are a popular food in several countries, they haven’t completely taken hold here. But that may change if proprietors like Dirk Fucik in Chicago have their way.
“Highly invasive Asian carp are advancing on the Great Lakes, so fire up your grill. Asian carp are eaten and appreciated globally, but the fish have never been popular in America because they’re bony and are thought to be bottom-feeders (actually, you can tell your pesca-prejudiced pals, Asian carp are plankton-feeders.) Nevertheless, Asian carp burgers at Dirk’s Fish & Gourmet Shop have been well-received.
’90 percent of the people who try it like it,’ Dirk Fucik says. At Taste of Chicago one year, Fucik gave out 800 carp burgers in two hours.
Fucik fillets the carp, then grinds the remaining fish. ‘Once you’ve done that, it’s like ground anything,’ Fucik says. He’s used Asian carp in the meatballs in Italian wedding soup, and he’s received a lot of compliments for his Asian carp gefilte fish. Fucik recommends preparing his burgers with some cambozola cheese in the middle, or using Dirk’s Thai or ‘Terry-aki’ marinades. The burgers cost $6 per pound, compared to $18 a pound for salmon burgers.”
Asian carp may be getting a foothold in waters near Lake Erie according to recent water sample analysis.
“Multiple water samples taken from the Muskingum River last fall carried the environmental signature of bighead carp, an invasive species threatening the ecosystem of the Great Lakes. A report released Friday by the Nature Conservancy — in conjunction with the Muskingum Watershed Conservancy District, the Ohio Department of Natural Resources, and researchers from Central Michigan University — indicated 10 of the 222 samples from the river tested positive for bighead carp eDNA.
Asian carp have been established in the Ohio River for more than a decade, but these eDNA results indicate the fish could be present in the Muskingum some 80 miles north of where the Muskingum joins the Ohio at Marietta.
The Muskingum has a series of old dams and deteriorating locks, but if the genetic evidence is accurate, those have not provided a significant impediment to the carp moving up the river system.”
Read more about the findings at the link above.
While much of the press about a carp invasion in the Great Lakes has focused on the bighead and silver varieties of Asian carp, a new study is showing that grass carp are making their way into and threatening the Lakes as well.
“Grass carp, a plant-eating species of the invasive Asian carp family, have also been found spawning in Lake Erie and its many tributaries…
Though fears over invading Asian carp have largely centered on bighead and silver carp — which gulp down large amounts of plankton, the all-important food-source foundation for a healthy aquatic ecosystem — the new study suggests conservationists should pay attention to grass carp too.
Grasses are also an important nutritional source for native fish species, and as its name suggests, grass carp could prove detrimental in that department.
The U.S. government has already spent upwards of $200 million trying to slow the encroachment of Asian carp into the Great Lakes. Many worry their growing presence will turn the Great Lakes into one giant carp pond — ruining ecological diversity and the multi-billion dollar fishing industry in the region. Regional authorities remain in discussion with federal agencies over further mitigation efforts.”
Read the complete article at the link above.
Much like a gardener hopes that their scattered seeds will eventually bloom into a lush garden, Illinois-Indiana Sea Grant awards seed grants to projects that address some of the biggest concerns in the Great Lakes in the hopes that the initiatives will grow into something larger. These Discovery Grant projects—totaling over 40 since 2009—cover a broad range of topics, and their results help natural resource managers and policy makers preserve Lake Michigan and strengthen nearby communities.
So, what are these projects exactly? We’re glad you asked. Discovery Grant Projects II shines a light on unexpected and emerging contaminants in stream water. Other featured projects examine the market for domestic seafood and give Hoosiers real-time access to fish consumption advisories. And another still paints a clearer picture of how Asian carp are changing the food web in the Illinois River.
Download the first edition, Discovery Grant Projects, to learn about past research on water quality, aquaculture, biodiversity, and more. And visit our Research page to read more about past projects and get a peek at ongoing research.
Following the U.S. Army Corps of Engineers’ report on Asian carp entering the Great Lakes (and methods to prevent them), there have been some articles looking more closely at the methods.
“Because of this, engineers have been encouraged to develop just about any solution to keep carp at bay — or out of one.
One such solution was the electric barrier in the Chicago Sanitary and Ship Canal, which was meant to keep Asian carp from swimming through the CAWS and into Lake Michigan. Of the identified 18 points of entry into the Great Lakes, the Army Corps believes the CAWS point is the most critical.
The barrier consists of three electrodes arranged in a line. These electrodes power a barrier much like an electric fence for dogs. Fish swimming into it receive an electric shock sufficient enough to stun them and keep them out — in theory. According to a report issued by the Army Corps in December, 2013, the barrier is effective against adult carp, but smaller fish of two to four inches long were able to find a loophole…
…It’s a big risk to take when plans require billions in funding. Still, an appropriate plan may pay off in the long term. Recent studies suggest that controlling the spread of invasive species already present in the Great Lakes can cost up to $800 million annually.”
Read more about the options at the link above, including a large graphic that helps visualize some of the suggested methods for controlling or preventing Asian carp from reaching the Great Lakes.
Two student applicants sponsored by Illinois-Indiana Sea Grant were selected as Knauss fellowship winners this year, and last month they traveled to the nation’s capital to find their respective positions working on water resource and environmental issues.
Katherine Touzinsky and Sara Paver both wrote in to update us on the positions they selected and the specific areas where they will be focusing their energies.
“Placement week – what to say?” Katherine writes. “Over the course of three days, I had 17 interviews for different positions, and each and every one seemed like something I had dreamed up. It was one of the most stressful and exciting experiences I’ve ever had.
I was placed as a navigation R&D advisor for the US Army Corps of Engineers. The US Army Corps of Engineers provides vital public engineering services in peace and war to strengthen our nation’s security, energize the economy, and reduce risks from disasters. I get to take a leadership role in research and development by helping to manage a national R&D agenda, make decisions about technical approaches, and integrate technical teams from federal, academic, and industry sectors. And I’ll get to actively participate in actual research projects too. For at least one week each month, I will be traveling to national DoD labs to meet scientists, get to know their research, and work to make connections between them and other governmental and non-governmental sectors.
I’m in the second year of my master’s program in ecological sciences and engineering (ESE). My thesis work is on the plasticity of Asian carp between the Illinois and Wabash Rivers, and I’ve been lucky enough to work closely with bowfisherman through most of my Asian sampling and extension activities. Right now I’m trying to choose whether or not I will continue on for my PhD and if so, on what topic. I’ve gained some crucial insight on my interests through working with ESE – what I love about ecology is studying interactions and, more broadly, systems. I’m so excited about the Knauss Fellowship year because it is going to let me get a bird’s eye view of the intersections between high-level government, scientists and researchers, the ecology of specific areas, and end users (fisherman, recreationalists, commercial operators, etc.).”
Sara also found placement week to be quite the experience. “Knauss placement week was a fun, speed-dating-esque marathon. It provided an amazing opportunity to get a glimpse of the breadth of work being done within NOAA and other host agencies. I really enjoyed meeting and talking with representatives from various host offices as well as incoming, current, and former fellows.
I selected a position at the National Science Foundation’s Division of Ocean Sciences. Part of my responsibilities will be to facilitate peer review and award decisions for proposals submitted to the Ocean Section, including the Coastal Science, Engineering and Education for Sustainability (Coastal SEES) program. I am really excited to be exposed to cutting-edge research and to see the grant review process first hand. I think that reading and participating in the review of the Coastal SEES proposals will be particularly enlightening due to their interdisciplinary nature.
I am graduating in December with a Ph.D. in Ecology, Evolution, and Conservation Biology from the University of Illinois at Urbana-Champaign, having studied aquatic microbial ecology in Dr. Angela Kent’s lab. I am looking forward to broadening my understanding of how policy and the needs of society influence science and how science, in turn, informs policy. I plan to return to microbial ecology research armed with this knowledge following my year as a fellow.”
To learn more about the fellowship program, visit the National Sea Grant College Program Dean John A. Knauss Marine Policy Fellowship website. And to find out about all of the fellowships available to undergraduate, graduate, and post-grad students, visit our fellowship page.
Scientists in Wisconsin began collecting and analyzing water samples from Sturgeon Bay a couple of days ago, searching for evidence of Asian carp in the water.
“Under mostly sunny skies and temperatures hovering near 30 degrees, a three-man crew from the U.S. Fish and Wildlife Service and the DNR motored across the bay in a flat-bottomed boat looking for promising sites to sample.
A scientist at the University of Notre Dame pioneered the technique of using DNA to search for populations of Asian carp. But the first step is far from rocket science:
One member of the crew stretched in a nearly prone position over the side of the boat and dipped a 2-liter plastic bottle into the 40-degree water. The driver read out GPS coordinates, the water temperature and the depth. The third man from the crew scribbled down the information.
The samples are processed in Green Bay and then packed with dry ice and sent to a Fish and Wildlife Service laboratory in La Crosse, where the DNA sequencing is done and water is matched with known DNA specimens of the two carp species. The samples will be queued up with hundreds of other potential carp samples from Illinois and elsewhere.”
Read the complete article at the link above.
A recent article in the Journal-Sentinel online reports that Asian carp DNA have been found for the first time in the Lake Michigan waters near Wisconsin.
From JSonline:
“The single positive water sample for the jumping silver carp was taken May 31 in Sturgeon Bay near Door County’s Potawatomi State Park.
The sampling was part of a Lake Michigan-wide survey looking for evidence of Eurasian ruffe, a different type of invasive fish species. The water sample was not screened for the presence of Asian carp DNA until this fall, and the DNR did not get word of the positive result until last week, said Mike Staggs, DNR’s fishery director.
The sample was the only positive found among the 282 water samples taken from Wisconsin’s Lake Michigan waters this year as part of an invasive fish survey conducted by government crews and researchers from the University of Notre Dame and The Nature Conservancy. Fifty of those of samples were taken in the Sturgeon Bay area.
Nobody is sure at this point what to make of this single piece of microscopic evidence.
There are several potential sources for the genetic scraps, including boat hulls, bird feces, or contaminated bait buckets. It could, of course, also signal the presence of a live fish.”
Read the complete article at the link above for more information about the study.
Michigan Radio’s Here and Now recently discussed the issue of Asian carp and the State of Michigan’s preparations to prevent and fight the spread of the invasive fish.
From WBUR:
“Asian carp, an invasive and destructive fish, have spread through the Mississippi, Ohio, Illinois and Missouri rivers. In total, the fish are affecting more than 20 states from Louisiana to South Dakota.
Under the right conditions, it could take as few as a dozen Asian carp to establish a population in the Great Lakes. That’s according to a report published this month by scientists in Ontario.
If they’re correct, the risk of even just a handful of Asian carp escaping into the Great Lakes could be more significant than officials had planned.
From the Here & Now Contributors Network, Lindsey Smith of Michigan Radio reports on how the Department of Natural Resources in Michigan is getting ready to face off with this invader.”
Listen to the program or read the transcript at the link above.
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