On:
In: 2024, AIS, angling, aquatic invasive species, Boating, conservation, fishing, Fox-Wolf Watershed Alliance, FWWA, invasive, invasive species, Lake Butte des Morts, Lake Poygan, Lake Winnebago, Lake Winneconne, Spiny Waterflea, waterflea, Winnebago, Winnebago Lakes, Winnebago Waterways

Additional Monitoring Reveals No Other Spiny Waterfleas

Following up from a spiny water flea finding in Lake Winnebago in 2022, the WI Department of Natural Resources and local partners conducted extensive monitoring for spiny water fleas through the summer and fall of 2022. Biologists were searching for additional adult spiny waterfleas as well as eggs that would have been laid in the sediment of the lake. Following analysis of the samples collected, we are please to report that no evidence of spiny waterflea were found which includes not finding any eggs!

This is fantastic news for our waterways! Currently, there is no evidence that the spiny waterfleas found in 2022 were able to establish a population in Lake Winnebago. Ongoing monitoring by UW-Green Bay as part of the Fox River Navigational System Authority (FRNSA) AIS Monitoring Program will continue to keep an eye out for spiny waterflea and other invasive species.

Remember- an ounce of prevention is worth a pound of cure. It’s easy to help prevent the spread of all aquatic invasive species between lakes. No matter what lake or river you visit, follow these steps to protect your wild places:

Spiny waterflea on a fingertip

· Inspect equipment (boats, fishing line, etc.) for attached aquatic plant, animals, or mud

· Remove all attached plants or animals

· Drain all water from buckets and containers

· Never move live fish away from a waterbody (fish out of water = dead)

Photo Credit: Riley Schultz (UWGB), WI Sea Grant, Donn Brandstrator (UM-Duluth), Chris Acy

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on Twitter! You can also sign-up for email updates at WinnebagoWaterways.org.

Winnebago Waterways is a Fox-Wolf Watershed Alliance program. The Fox-Wolf Watershed Alliance is an independent nonprofit organization that identifies and advocates effective policies and actions that protect, restore, and sustain water resources in the Fox-Wolf River Basin.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post Update: 2022 Spiny Waterflea Findings in Lake Winnebago appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/04/24/update-2022-spiny-waterflea-findings-in-lake-winnebago/?utm_source=rss&utm_medium=rss&utm_campaign=update-2022-spiny-waterflea-findings-in-lake-winnebago

Chris Acy

On:
In: 2024, Get into your sanctuary workshop for youth, Lottie Cooper, R/V Neeskay, Selah Chamberlain, Sheboygan, Wisconsin Historical Society, Wisconsin Sea Grant, Wisconsin Shipwreck Coast National Marine Sanctuary

The post Get Into Your Sanctuary Workshop for youth first appeared on Wisconsin Sea Grant.

Original Article

Blog | Wisconsin Sea Grant

Blog | Wisconsin Sea Grant

https://www.seagrant.wisc.edu/blog/get-into-your-sanctuary-workshop-for-youth/

Marie Zhuikov

On:
In: 2024, Adopt-a-Launch, AIS, aquatic invasive species, Bay of Green Bay, Butte des Morts, Citizen Lake Monitoring Network, Clean Boats Clean Waters, conservation, Fox-Wolf Watershed Alliance, FWWA, invasive species, Lake Butte des Morts, Lake Poygan, Lake Winnebago, Lake Winneconne, Project RED, volunteer, volunteer opportunity, watershed

Opportunities Abound; Volunteer While Doing What You Love!

The warmer weather and open water is calling! When you’re out doing your favorite activities this spring and summer, you could be helping protect your lakes and rivers! Learn about some of the volunteer opportunities at Fox-Wolf below. Our volunteer opportunities give you the flexibility to do what you love while protecting your waters!

Adopt-a-Launch

Join community members in helping improve boat launches ! Interested individuals will adopt a local boat launch and help remove plants from the launch area, pick up litter, and report issues with the launch. Volunteers also help protect our lakes by searching for aquatic invasive species at their launch!  Adopt-a-Launch program is a Fox-Wolf program that works to engage community members in taking ownership of their lakes by helping to search for aquatic invasive species and improve boat launches! Get involved today!

Project Riverine Early Detectors

Love to paddle, kayak, or canoe in rivers and streams? Help look for invasive species during this relaxing pastime! You will be trained on how to easily identify aquatic invasive species, some native look-a-likes, and how you can keep an eye out for them when you’re floating just around the riverbend!

Citizen Lake Monitoring Network

Join 1000+citizen volunteers statewide to collect high quality data on the lakes that you love! CLMN volunteers help monitor their lakes for a variety of things including water quality parameters, ice on/off, and aquatic invasive species! Volunteers help determine which topics they are interested in monitoring. The information gathered by volunteers is even used by Wisconsin Department of Natural Resources and university biologists and researchers, UW-Extension, and other interested individuals in projects that work to improve your lake! Help keep track of changes in your lake while being near your favorite Winnebago lake! This opportunity is easy to do from both the shoreline as well as your boat!

Purple loosestrife Biocontrol

Love to garden! This one’s for you! Help control harmful invasive species in our community! The invasive plant Purple loosestrife can quickly dominate a wetland and harm our native plants. You can help by raising a natural predator of Purple loosestrife (Galerucella beetles) on caged, potted, loosestrife plants in your backyard. Once released into local infested wetlands, the beetles only eat purple loosestrife, giving native plants a chance to re-establish. This DNR program, locally coordinated by Fox-Wolf Watershed Alliance, offers free supplies and does not require previous experience. Access to an outdoor space within reach of a garden hose is ideal, but we are also looking for volunteers to help with plant potting and beetle release events.

Clean Boats, Clean Waters

Love talking with people? Get involved in the effort to protect Wisconsin lakes and rivers by stopping the spread of aquatic invasive species. As a volunteer watercraft inspector, you will take up the front line by conducting boater education at boat landings in your community. Inspectors perform boat and trailer checks for aquatic invasive species, educate boaters on how to stop the spread, and collect and report new infestations. Meet other anglers and boaters from across the Midwest!

AIS Statewide Snapshot Day

Want a single day event that’s fun for the whole family? During the statewide Aquatic Invasive Species Snapshot Day, join other water quality enthusiasts in searching for invasive species that harm our waterways. Learn how to search for invasive species that may affect the waters that are special to you. You can choose to search from the shore with binoculars and a rake or wade into friendly waters to get a better look! This event is fun for the whole family and really makes a difference in the fight against invasive species. AIS Snapshot Day occurs on August 10th, 2024.

How To Get Started

Give the greatest gift this year to your waters; your time! Whether you want a single day opportunity or want to help out throughout the summer, we will help you fuel your environmental passions at Fox-Wolf! View more of Fox-Wolf’s volunteer opportunities by visiting: https://fwwa.org/join-us/volunteer-with-fwwa/

Interested? Contact – Chris Acy, Fox-Wolf Watershed Alliance AIS Coordinator. chris@fwwa.org. (920) 460-3674

Photo Credit: Dan O’Connell, Chris Acy

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on Twitter! You can also sign-up for email updates at WinnebagoWaterways.org.

Winnebago Waterways is a Fox-Wolf Watershed Alliance program. The Fox-Wolf Watershed Alliance is an independent nonprofit organization that identifies and advocates effective policies and actions that protect, restore, and sustain water resources in the Fox-Wolf River Basin.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post Warming Weather? Help Volunteer to Protect Your Favorite Places appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/03/13/warming-weather-help-volunteer-to-protect-your-favorite-places/?utm_source=rss&utm_medium=rss&utm_campaign=warming-weather-help-volunteer-to-protect-your-favorite-places

Chris Acy

On:
In: 2024, AIS, aquatic invasive species, Event - Non-FWWA, exotic pet surrender, Fox-Wolf Watershed Alliance, FWWA, Habitattitude, invasive species, Lake Butte des Morts, Lake Poygan, Lake Winnebago, Lake Winneconne, Outreach and Education, Winnebago Lakes

Oshkosh, Neenah Play Host Exotic Pet Surrender Events

Original Story: John Moyles, J&R Aquatic Animal Rescue

In an effort to address the challenges of rehoming exotic pets and discourage the harmful practice of releasing them into the wild, J&R Aquatic Animal Rescue hosted several successful Exotic Pet Surrender Events on January 13th and March 2nd, 2024. The event, held at the organization’s rescue center in Neenah, aimed to provide responsible alternatives and a judgement-free environment for pet owners who can no longer care for their exotic animals.

A staggering 460 animals, ranging from fish and reptiles to pet birds and small mammals, found their way to new beginnings through the event. Among the surrendered animals were fish, lizards, snakes, and even a colony of roaches, highlighting the diverse range of creatures in need of assistance.

The event was not only about surrendering pets but also about education and advocacy. Attendees had the opportunity to meet Animal Ambassadors and learn about their unique stories, reinforcing the message of responsible pet ownership. A photobooth with rescued pets allowed for cherished memories to be captured and shared, further fostering a sense of community and compassion.

Collaborating with regional rehoming partners such as Reptile Rescue of Wisconsin, Fox-Wolf Watershed Alliance, Pet Advocacy Network, and University of Wisconsin Sea Grant/Water Resources Institutes, J&R Aquatic Animal Rescue facilitated the surrender of four animals, including fish, a tortoise, and birds. This collaborative effort ensures that these animals are given proper care and attention.

All surrendered pets undergo a brief quarantine and evaluation period to ensure their health and well-being before becoming available for adoption. This meticulous process reflects the commitment of the organizers to find suitable homes for these animals and prevent any negative impact on the local ecosystem.

For those who missed the event, J&R Aquatic Animal Rescue reminds the public that they can surrender pets at their Rescue Center in Neenah or find information about upcoming Surrender Events on their website: https://www.jraar.org/exoticpetsurrenderevents. With 29 events planned for the year there are ample opportunities for pet owners to seek assistance in rehoming their animals.

The success of the Exotic Pet Surrender Event was made possible through the generous sponsorship of Ship Your Reptiles, Chemipure, Jellyfish Art, Reef Aquaria Design, and Festival Foods. Their support enables J&R Aquatic Animal Rescue to continue providing valuable services to the community and promoting responsible exotic pet ownership.

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on X! You can also sign-up for email updates at WinnebagoWaterways.org.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Winnebago Waterways and Keepers of the Fox are Fox-Wolf Watershed Alliance programs. The Fox-Wolf Watershed Alliance is an independent nonprofit organization working to protect and restore water resources in the Fox-Wolf River Basin.

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post 400+ Exotic Pets Rehomed, Mitigating Potential Releases Into Waterways appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/03/13/400-exotic-pets-rehomed-mitigating-potential-releases-into-waterways/?utm_source=rss&utm_medium=rss&utm_campaign=400-exotic-pets-rehomed-mitigating-potential-releases-into-waterways

Chris Acy

On:
In: 2024, Driftless Area, drinking water sources in Wisconsin, Groundwater Awareness Week, Groundwater Research Advisory Council, PFAS, private wells, public water systems, Waukesha water supply and radium, Wisconsin Water Library, Wisconsin Water Resources Institute, Wisconsin's annual average water withdrawal

Groundwater is an important source of drinking water in Wisconsin. Image credit: David Nevala

When you turn on a faucet and a stream of cool, clear water pours out, that convenience can mask where the water comes from—underground. It’s there, and in great quantities. In fact, Wisconsin has so much groundwater – 1.2 quadrillion gallons – that if it were on the surface, it would submerge Packer fans in 100 feet of the wet stuff.

Just because groundwater is out of sight, doesn’t mean it’s out of mind – or use. Where does your drinking water come from? For 70 percent of us in the state, it’s thanks to the vast stores of groundwater in aquifers that not only quench our thirst but also fuel the operations of our power plants, breweries, factories and farms. The remaining 30 percent of Wisconsinites get their drinking water from the Great Lakes.

Wisconsin has more than 800,000 private wells and in excess of 11,000 public water systems. In all, Wisconsin’s annual average water withdrawal is 1.91 trillion gallons (some of that comes from surface water, such as lakes Michigan and Superior).

With so much demand and use, groundwater is clearly valuable. And, just as in the case of surface water, we need to be responsible stewards of it. That’s worth noting as the 2024 Groundwater Awareness Week (March 4 – 10) rolls around.

One manifestation of that stewardship is the work done by our sister organization, the University of Wisconsin Water Resources Institute (WRI). WRI runs a statewide research competition through the Groundwater Research Advisory Council (GRAC). As its basic function, the GRAC ensures that Wisconsin citizens have an adequate supply of high-quality groundwater and it funds university scientists to look into current topics such as per- and polyfluoroalkyl (PFAS) in numerous Wisconsin communities and pathogens in drinking water in the Driftless Area.

An example of past impactful GRAC research looked into naturally occurring radium in drinking water serving residents of Waukesha, which led to a binational decision a few years ago to allow that city to secure water from Lake Michigan, even though it lies outside of the Great Lakes Basin.

WRI also offers a robust information transfer program highlighting the work of water scientists through news stories, podcasts and videos. Finally, the WRI supports the Wisconsin Water Library, a resource with more than 30,000 holdings of all types of water-related material free for circulation to any state resident. The library further curates and distributes water-themed learning kits for children in the K-12 educational system.

To access these resources about the veritable tide below your feet—groundwater—and other water information, visit wri.wisc.edu.

 

The post During Groundwater Awareness Week (March 4-10), consider the tide under your feet first appeared on Wisconsin Sea Grant.

Original Article

Blog | Wisconsin Sea Grant

Blog | Wisconsin Sea Grant

https://www.seagrant.wisc.edu/blog/during-groundwater-awareness-week-march-4-10-consider-the-tide-under-your-feet/

Moira Harrington

On:
In: 2024, AIS, aquatic invasive species, herbicide, Lake Management, lakeshore property owners, negative emotions, Outreach and Education
New Study Finds Negative Emotions Drive Preference for Herbicide Treatments

 

A new study published by University of Wisconsin-Madison researchers is the first to explore what drives lakeshore property owners’ preferences for herbicide treatments of aquatic invasive plants over other management options, even if those treatments may harm native plants and animals. The study found that negative emotions and believing that aquatic invasive species are present in the lake where a property owner lives were the strongest predictors for preferring herbicide treatments. Surprisingly, perceived impacts of aquatic invasive species did not affect preferences for herbicidal treatment of aquatic invasive species.

These results provide an opportunity for natural resource managers to educate lakeshore property owners about alternative methods for managing aquatic invasive plants while still leaving options open for herbicide treatment, if needed. Other management options include manual and mechanical removal as well as simply monitoring, since non-native plants can often co-exist with other native plants in a lake without taking over and becoming a nuisance.

“People can develop negative emotions about a subject either through lived experiences or through communications about the subject,” said Bret Shaw, lead author and a Division of Extension environmental communications specialist and Department of Life Science Communication professor. “Given that the perceived impact of invasive species is not driving preference for using herbicides, it is possible that fear-based aquatic invasive species prevention messages may influence higher risk perceptions that cause property owners to seek herbicidal treatment first. Considering other approaches and messaging strategies, too, may help lake organizations achieve better outcomes with their management efforts.”

Aquatic invasive plants in Wisconsin lakes can negatively impact recreation and property values. Many organizations offer education and outreach programs for boaters and anglers to prevent invasive species spread. However, some lakes already have non-native species that can become invasive, and new

EWM growing in lake

introductions can occur despite widespread prevention efforts. While there are many ways to manage aquatic invasive plants, lakeshore property owners and lake associations often seek permits to use chemical herbicides even though herbicides themselves can carry a potential risk of ecological harm to the treated lake, which is why herbicides may not necessarily be an appropriate as a first course of action in some waterbodies.

Aquatic invasive species are a concern both globally and in Wisconsin, with the Great Lakes on Wisconsin’s borders and another 15,000 inland lakes within them. While the most problematic invasive species aren’t present in most lakes, where they are located, they can reach high densities that can impede boating, negatively affect fishing and alter the ecological functions of a lake. More than $5 million is spent each year in Wisconsin on aquatic invasive species management. However, even with this annual investment and the negative impacts of aquatic invasive species, very little effort has been spent understanding how waterfront property owners feel and think about invasive species management.

“This research is among the first to understand the opinions and beliefs of waterfront property owners about aquatic invasive species management,” said Tim Campbell, the aquatic invasive species program manager for Wisconsin Sea Grant and co-author of the study. “The results of this research will help us create invasive species management education tools and programs that balance efforts to reduce the unwanted impacts of invasive species while protecting the ecological integrity of our lakes.”

Other co-authors include Dominique Brossard, Professor in the Department of Life Sciences Communication (LSC) as well as recent LSC graduate students, Richard Heinrich (LSC Ph.D. ‘23) and Theresa Vander Woude (LSC and Nelson Institute for Environmental Studies, M.S. ‘21). The full study can be found in the journal Biological Invasions here (https://rdcu.be/dvWb9). Alternatively, email tim.campbell@wisc.edu for a copy of the study.

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on X! You can also sign-up for email updates at WinnebagoWaterways.org.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Winnebago Waterways and Keepers of the Fox are Fox-Wolf Watershed Alliance programs. The Fox-Wolf Watershed Alliance is an independent nonprofit organization working to protect and restore water resources in the Fox-Wolf River Basin.

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post Herbicide Treatments: Property Owners Preferences Study appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/02/15/herbicide-treatments-property-owners-preferences-study/?utm_source=rss&utm_medium=rss&utm_campaign=herbicide-treatments-property-owners-preferences-study

Chris Acy

On:
In: 2024, AIS, aquatic invasive species, Event - Non-FWWA, In your yard, invasive plants, invasive species, Melinda Myers, Outreach and Education, restoration, webinar

Horticulturist, author, and speaker Melinda Myers will discuss key invasive plants in Wisconsin, share tips on identification, provide ways to control some of the more common problem plants, and suggest alternative plants foSee attached a recent article that Bret Shaw, myself, and other collaborators recently had published in Biological Invasions. Below and attached is some text that helps explain the results of the paper that you can feel free to use in any newsletters you all provide content for. Also attached is factsheet we produced as part of this project a few years ago that covers some of the other recommendations from this project.r your landscape.  We hope you can join Melinda to learn more about this important issue.

Webinar: February 28th, 2024 6:30pm

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on X! You can also sign-up for email updates at WinnebagoWaterways.org.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Winnebago Waterways and Keepers of the Fox are Fox-Wolf Watershed Alliance programs. The Fox-Wolf Watershed Alliance is an independent nonprofit organization working to protect and restore water resources in the Fox-Wolf River Basin.

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post Free Webinar: Create a Beautiful Landscape Free of Invasive Plants appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/02/15/free-webinar-create-a-beautiful-landscape-free-of-invasive-plants/?utm_source=rss&utm_medium=rss&utm_campaign=free-webinar-create-a-beautiful-landscape-free-of-invasive-plants

Chris Acy

On:
In: 2024, AIS, aquatic invasive, aquatic invasive species, Butte des Morts, Fond du Lac, Fox-Wolf Watershed Alliance, FWWA, invasive species, Keepers of the Fox, Lake Butte des Morts, Lake Poygan, Lake Winnebago, Lake Winneconne, Lower Fox River, Outreach, Outreach and Education, water garden, water gardeners, watershed, Winnebago Waterways

Creating Landscapes Free of Invasive Plants Webinar; January 31st 2024 6:30 PM

Attention Master Gardeners, Master Naturalists, Garden Club Members and others advising home gardeners; this webinar is for you! Representatives from UWEX and DNR will join Melinda Myers to talk about current threats, available resources and ways we can all work together to manage invasive plants. To register for the free webinar, click the button below!

Melinda Myers is the author of numerous gardening books, including The Garden Book for Wisconsin, Small Space Gardening and The Midwest Gardeners Handbook. She hosts the “How to Grow Anything” DVD series and the Melinda’s Garden Moment TV & radio program. Myers is a columnist and contributing editor for Birds & Blooms magazine. She offers free gardening webinars on her website at www.MelindaMyers.com.

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on X! You can also sign-up for email updates at WinnebagoWaterways.org.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Winnebago Waterways and Keepers of the Fox are Fox-Wolf Watershed Alliance programs. The Fox-Wolf Watershed Alliance is an independent nonprofit organization working to protect and restore water resources in the Fox-Wolf River Basin.

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post Invasive Plants in Your Yard? Here’s What To Do appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/01/16/invasive-plants-in-your-yard-heres-what-to-do/?utm_source=rss&utm_medium=rss&utm_campaign=invasive-plants-in-your-yard-heres-what-to-do

Chris Acy

On:
In: 2024, AIS, aquatic invasive species, Bay of Green Bay, Fox-Wolf Basin, Fox-Wolf Watershed Alliance, Great Lakes, Green Bay, Outreach, Outreach and Education, Water quality

Released Goldfish Grow to Monstrous Size, Destroy Habitat

Original Story: Livia Albeck-Ripka, The New York Times

Inside a fishbowl, the goldfish — a species of carp native to East Asia, bred for aesthetic delight and traditionally believed to bring good fortune — is hardly more than home décor. Usually just a few inches long, it is among the easiest of pets to keep.

But released into the wild, the seemingly humble goldfish, freed from glass boundaries and no longer limited to meager meals of flakes, can grow to monstrous proportions. They can even kill off native marine wildlife and help destroy fragile and economically valuable ecosystems.

“They can eat anything and everything,” said Christine Boston, an aquatic research biologist with Fisheries and Oceans Canada.

Over the past several years, Ms. Boston and her colleagues have been tracking invasive goldfish in Hamilton Harbour, which is on the western tip of Lake Ontario, about 35 miles southwest of Toronto. The bay has been decimated by industrial and urban development as well as by invasive species — making it among the most environmentally degraded areas of the Great Lakes.

Their study, published last month in the Journal of Great Lakes Research, could help pinpoint goldfish populations for culling, said Ms. Boston, who is the lead author. “We found out where they are before they start spawning,” she said. “That’s a good opportunity to get rid of them.”

The fast-growing female goldfish, Ms. Boston noted, can also reproduce several times in one season. “They have the resources,” she added, “and they can take advantage of them.”

Goldfish were first spotted in Hamilton Harbour in the 1960s, but largely died off in the 1970s because of industrial contamination. In the early 2000s, their population appeared to recover. Goldfish can tolerate a wide range of water temperatures, reach sexual maturation quickly, and can eat nearly anything, including algae, aquatic plants, eggs and invertebrates, Ms. Boston said.

The feral goldfish are also destructive, uprooting and consuming plants that are home to native species. They help spawn harmful algal blooms by consuming the algae and expelling nutrients that promote its growth, Ms. Boston said, creating conditions that are intolerable to native fish.

To track the goldfish, the researchers captured and sedated 19 of the larger adults and surgically implanted tags the size of AA batteries into their bellies. The tags, which sent signals to acoustic receivers around the bay, provided researchers with a map of their locations.

Eight of the fish died, but the remaining 11 led Ms. Boston and her colleagues to find that the fish tended to spend the winter in deep waters and moved to shallower habitats by spring, where they prepared to spawn.

Some options for removing the goldfish, she said, include capturing them with specialized nets deployed beneath winter ice, or using “electro fishing,” which involves stunning the fish with an electrical current and scooping them from the water. Both techniques, she added, would avoid killing the native fish.

Nicholas Mandrak, a professor of biological sciences at the University of Toronto Scarborough, said that while goldfish were introduced to North America in the late 1800s, the wild population had begun to “dramatically increase” in the past two decades. Their spawning explosion, he said, resulted partly from people in densely-populated areas releasing pets in urban ponds.

Climate change may play a role, because of the goldfish’s capacity to adapt to warming and poorly oxygenated waters, he added.

“There are literally millions of goldfish in the Great Lakes, if not tens of millions,” Dr. Mandrak said.

Despite the threat, he added, environmental managers tend to forget the goldfish. “They just assume, ‘It’s been there for 150 years — there’s nothing we can do about it.’”

The problem is not unique to Canada. In Australia, a handful of unwanted pet goldfish and their offspring took over a river in the country’s southwest. Feral goldfish have flooded waterways in the United Kingdom, and, in Burnsville, Minn., the discovery of football-size creatures in a lake in 2021 led officials to beg their constituents: “Please don’t release your pet goldfish into ponds and lakes!”

People wrongly believe that because goldfish are “small and cute” they won’t pose a problem when released into the wild, said Dr. Ricciardi. “It’s the ‘Free Willy’ syndrome.”

Goldfish, he added, are just a small part of a vast invasion of non-native species whose outcomes can be unpredictable, and in some cases, are worsened by climate change.

“Under human influence, beasts are moving faster farther in greater numbers, reaching parts of the planet they could never reach before,” he said. “We’re talking about the redistribution of life on Earth.”

Anthony Ricciardi, a professor of invasion ecology at McGill University in Montreal, noted that not all invasive goldfish become supersized, but even the small ones are problematic, outpacing native fish populations and damaging the environment.

Their football-shaped bodies can swell to a size that makes them too large a meal for predators — up to about 16 inches long. “A fish would have to have a really big mouth to eat it,” she said.

Photo Credit: Vincent Tullo (New York Times), Fisheries and Oceans Canada, Great Lakes Laboratory for Fisheries and Aquatic Sciences

Questions? Comments? Contact Chris Acy, the AIS Coordinator covering Brown, Outagamie, Fond du Lac, Calumet, and Winnebago Counties at (920) 460-3674 or chris@fwwa.org!

Follow the Fox Wolf Watershed Alliance’s Winnebago Waterways Program on our Winnebago Waterways Facebook page or @WinnWaterways on X! You can also sign-up for email updates at WinnebagoWaterways.org.

Check out the Keepers of the Fox Program at https://fwwa.org/watershed-recovery/lower-fox-recovery/

Winnebago Waterways and Keepers of the Fox are Fox-Wolf Watershed Alliance programs. The Fox-Wolf Watershed Alliance is an independent nonprofit organization working to protect and restore water resources in the Fox-Wolf River Basin.

Reporting invasive species is a first step in containing their spread. Maintaining and restoring our waters and landscapes can reduce the impacts even when we don’t have other management options to an invasive species.

The post Once They Were Pets. Now Giant Goldfish Are Menacing the Great Lakes. appeared first on Fox-Wolf Watershed Alliance.

Original Article

Fox-Wolf Watershed Alliance

Fox-Wolf Watershed Alliance

https://fwwa.org/2024/01/16/once-they-were-pets-now-giant-goldfish-are-menacing-the-great-lakes/?utm_source=rss&utm_medium=rss&utm_campaign=once-they-were-pets-now-giant-goldfish-are-menacing-the-great-lakes

Chris Acy