September 26th, 2013 by Irene Miles
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.
September 16th, 2013 by Irene Miles
Recent research indicates that even a handful of Asian carp, between just ten and twenty fish, could establish an ecologically damaging population in the Great Lakes.
From ScienceDaily.com:
“Published this week in the Biological Invasions journal, research from Professor Kim Cuddington of the Faculty of Science at Waterloo indicates that the probability of Asian carp establishment soars with the introduction of 20 fish into the Great Lakes, under some conditions…
‘This species will have a huge impact on the food web,’ says Professor Cuddington. ‘Not only is it a fast-growing fish physically, but the population itself grows very quickly. A female can lay well over a million eggs a year, and with no known predators present in the Great Lakes, the Asian carp could dominate the waters and impact fisheries.’…
Individual fish have already been caught in two of the Great Lakes. The probability of Asian carp establishment changes dramatically if only 10 of the creatures are introduced. With 10 fish, the probability of a population of Asian carp is only 50 per cent, but with 20 fish, it jumps to 75 per cent, under some conditions.”
August 23rd, 2013 by Irene Miles
Back in April, we announced an art contest that asked K-12 students to share their ideas of how Lake Michigan could be protected from Asian carp. The results are now in, and three students in the Champaign area have been crowned the winners.
The awards go to Kylie Jackson, a third grader from Mahomet, and Lindsay Donovan and Nicole Dudley, both kindergarteners from Champaign. Each of their drawings depicts different ways to control the spread of Asian carp by keeping eggs from hatching. Kyle, Lindsay, and Nicole were chosen from 67 entries. Drawings were judged on creativity, artistic design, and relevancy to the topic.
The contest, funded by Illinois-Indiana Sea Grant, is part of ongoing efforts to introduce people to a new modeling tool that resource managers and lawmakers can use to prevent the spread of Asian carp. The model, known as FluEgg, can help decision makers identify where in the Great Lakes the invasive fish could become established. Because carp eggs have to stay afloat to hatch, Asian carp need to spawn in fast-moving streams. In order to thrive in the lakes, they would need access to places where there is a lot of turbulence, such as downstream from dams and spillways. Resource managers can use FluEgg to find those areas where conditions are right and test how effective prevention methods would be.
Developed by University of Illinois researchers Tatiana Garcia and Marcelo Garcia, FluEgg is the first of its kind to consider factors like water temperature and turbulence as well as biological data about early life stages to answer the question of whether Asian carp can become established in the Great Lakes. The model has already revealed that the Sandusky River in Ohio—a tributary to Lake Erie that was though unsuitable for spawning—could be a breeding ground for Asian carp during warm summer months. In the coming months, Tatiana and Marcelo plan to use FluEgg to evaluate more tributaries.
August 21st, 2013 by Irene Miles
Purdue Day at the Indiana State Fair turned out to be a great place for Illinois-Indiana Sea Grant specialists to show off the Asian carp bag toss game. Fair goers of all ages tried their hand at making the shot, and they got to learn more about invasive Asian carp at the same time.
With each throw, Purdue graduate students Zoe Almeida and Allison Hyrcik and IISG specialists Kara Salazar and Angie Archer quizzed the visitors on facts related to Asian carp. Many were eager to learn more and to find out about actions they could take to control the spread of Asian carp.
Attracting close to a million visitors each year, the Indiana State Fair offered specialists the opportunity to talk with Hoosiers from all areas of the state, from the southern border near the Ohio River to the northern part of the state around Lake Michigan. With so many waterways throughout Indiana, visitors to the booth were interested to learn more about invasive species and steps that could be taken to protect the state’s natural resources.
Find out more about invasive species at our website.
August 13th, 2013 by Irene Miles
Quagga and Zebra Mussels are well-known names in the Great Lakes region, as these invasive species have already had an effect on marine wildlife. But both species are prevalent in waterways throughout the United States, and fighting their spread could require a boost from the Federal government.
From USA Today:
“The mussels, natives of Eastern Europe and Western Asia, were transported to the U.S. in the ballast water of trans-Atlantic cargo ships. They first appeared in the Great Lakes in the mid-1980s, and between 2000 and 2010, they cost that region’s water users some $5 billion. The invaders have since crossed the Rocky Mountains, likely hitching a ride on a vacationer’s boat (they can survive for weeks out of water).
Their rapid spread threatens water supplies and energy systems in the West, a region heavily dependent upon hydropower and often gripped by drought. In response, state officials have stepped up boat inspections and cleaning efforts in addition to calling for federal help.”
Read the complete article at the link above for more information about the spread of these invasives and how additional funding could help step up the fight against their spread.
August 7th, 2013 by Irene Miles
Researchers at the University of Illinois, working with the USGS and funded in part by Illinois-Indiana Sea Grant, have developed a modeling system that will help manage and prevent the spread of invasive Asian carp.
From Phys.org:
“The model, called Fluvial Egg Drift Simulator (FluEgg), follows a clutch of eggs over time as they travel downstream. Since carp spawn in turbulent waters, they seek places such as dams and spillways. To establish a large population in the Great Lakes, the carp would have to leave the lakes to spawn in the tributaries where the water moves rapidly, usually downstream from dams and spillways, where there is a lot of turbulence. The eggs have to stay suspended in the current to hatch – if they settle on the bottom, they die.
‘The challenge is, of all those million of eggs, how many of those end up hatching?’ said Marcelo Garcia, the U. of I. professor of civil and environmental engineering who led the project. ‘Our challenge has been to find a way to simulate this process from the spawning point all the way downstream. If the eggs are not kept in suspension, they will not be viable and they will die out. We have a model to look at certain streams – like tributaries to the Great Lakes – and figure out whether those streams are potential areas for Asian carp to reproduce. I think we have put together a tool that is going to be eye-opening, to say the least. It’s going to be a lot easier to visualize the transport and the conditions you need for hatching.'”
Read more about the model at the link above, and read about their outreach project here.
July 24th, 2013 by Irene Miles
Senators Mark Kirk (R) and Dick Durbin (D) of Illinois recently passed an amendment that would prevent the Army Corps of Engineers from moving critical invasive species prevention functions out of their current Chicago location .
From CBC News:
“An amendment to the Energy and Water Appropriations bill has passed and prevents the removal of critical functions and staff from the District Office of the U.S. Army Corps of Engineers in Chicago. The Windy City is home of the frontline fight against Asian carp entering the Great Lakes.
Republican Senator Mark Kirk and Senator Richard Durbin, a Democrat, proposed the amendment after U.S. Army Corps of Engineers announced plans to move Chicago district office functions to Detroit.
The senators believe the move, had it been made, would have potentially affected more than 200 employees who oversee projects such as Asian carp electric barriers and Chicago locks and dams designed to keep the invasive species out of the Great Lakes.”
Read the complete article at the link above to learn more.
July 12th, 2013 by Irene Miles
Greg Hitzroth, IISG’s organisms in trade outreach specialist, recently attended both the Northern Midwest Zen Nippon Airinkai Koi Club Show and the Indiana Koi and Water Garden Club Show to speak directly with water gardeners about making the right choices to prevent selecting and spreading invasive species.
The overall message he shared with the attendees was that even common plants associated with water gardens can quickly become “aquatic invaders” under the right conditions. Aquatic invaders are plants and animals that cause ecologic and economic harm once established in public waterways, and removing them can be very expensive and often impossible. One way that aquatic invaders are introduced or spread into public waters is through the intentional or unintentional release of species from water gardens and koi ponds.
Prevention is the best and most cost-effective way to keep aquatic invaders from spreading, and the gardeners and landscapers heard about a number of methods at the shows.
The first way to keep these species from spreading is to avoid buying and using them at all. Instead, Greg recommended purchasing native species and avoiding known invasives like those on identified by Reuben Keller of Loyola University Chicago and Christa Gants and David Lodge of University or Notre Dame in their article (PDF). The Chicago Botanic Garden’s website has a list of invasive species and alternatives that are not invasive or environmentally threatening to help guide gardeners’ purchase.
Additionally, simple steps like finding appropriate alternatives to releasing these species (including trading, returning them to retailers, or properly disposing of them) can have a profound effect in keeping aquatic invaders from establishing in other areas.
Greg will be presenting this information at other upcoming shows and events, including this weekend’s Midwest Koi and Pond Show, and looks forward to providing information about preventing aquatic invaders to gardeners and hobbyists throughout the season. Illinois-Indiana Sea Grant is creating a number of educational materials about preventing these species from spreading, and more information about those will be posted soon.
June 27th, 2013 by Irene Miles
Illinois-Indiana Sea Grant’s summer interns are already hard at work assisting specialists in several areas, working directly on important issues and getting the public involved in problems facing the Great Lakes.
Alice Denny, one of the interns working with the aquatic invasive species team, has been working with AIS specialist Sarah Zack to bring important invasive species prevention information to fishing tournament organizers and participants. She just recently attended the first of several tournaments slated for this summer, and wrote in to tell us about the internship experience thus far.
“It has been a busy week for me at the AIS office. This summer I am primarily working with fishing tournament organizers and anglers to better understand their attitudes and practices in AIS prevention. Last weekend, I attended my first fishing tournament and had a great time. Although the weather was less than ideal at North Point Marina, Clean Boats Crew and I were able to reach out to the salmon and trout anglers in the Geoffrey Morris Memorial Tournament. Sarah and I attended the rules meeting Friday evening to talk about simple steps tournament anglers can take to prevent the spread of AIS. Then on Saturday I went to the weigh-in to speak with anglers one-on-one and hand out educational material. There were around 70 boats participating in the tournament, with multiple anglers per boat. The audience was receptive and I really enjoyed speaking with them about the importance of AIS prevention. I’ll be attending another tournament in Indiana next weekend, and I’m hoping for nice weather and lots of fish so I can reach as many anglers as possible! Overall I’m really enjoying working with this audience over the summer as I’m getting lots of experience with outreach.”
Several of our interns wrote about their experiences at the IAGLR 2013 conference, and there are many more events and projects they’ll be updating us on throughout the summer.
