The Ricciardians

Africa's freshwater fish face extinction in Lake Victoria due to pollution, overfishing and invasive species Africa’s freshwater fish are on the decline, according to a recent report by the World Wide Fund for Nature. In Lake Victoria, Africa’s largest lake, fish catches have dropped sharply as pollution, in...

ca.news.yahoo.com/africas-fres...

Canada and the U.S. have a common enemy: invasive and voracious carp A voracious species of carp introduced by the U.S. in the 1970s is spreading and scientists have new fears it could end up in the Great Lakes.

nationalpost.com/news/canada/...

Cruising for clues: researchers say they've found evidence of 1st invasive barnacle in Nunavut | CBC News The Arctic’s cold waters have – for the most part – prevented invasive species from migrating north. But with the Arctic warming up nearly four times faster than anywhere else on Earth, shipping route...

"What the barnacle really does signify is that this incredibly pristine environment is starting to become vulnerable to invasive species"
www.cbc.ca/news/canada/...

A beautiful fall day at the Gault Open Doors event 2025 talking to the community about aquatic invasive species 🐟🌱
@picard-m.bsky.social #goldfish #invasivespecies #aquaticecology #tubenosegoby #roundgoby #gaultnaturereserve

Willow emerald damselfly

approx 50 clam shells with perfect round holes in them

Lovely examples of how BUTTONS used to be made from the nacreous layer of these bivalves! Just take "hole punches" through the shells! #molluscmonday

Some amazing early-19th century fish illustrations, by Edward Donovan
The natural history of British fishes
www.biodiversitylibrary.org/bibliography...

New Publication in The Journal of Fish Biology!

"Hidden in the gut: Metabarcoding reveals overlooked predation by the invasive European catfish (Silurus glanis)"

onlinelibrary.wiley.com/doi/10.1111/...

📢 New Webinar Oct 14!
Corbicula fluminea arrives in 🇳🇿: first record, pathways & impacts.

Join Dr Deborah Hofstra for insights on biosecurity, management & long-term effects.

🕗 8PM NZST | 8AM BST | 9AM CET
🔗 Register: aub.ie/bSALiV

#InvasiveSpecies #Biosecurity #Corbicula @guardias.bsky.social

The Skagit River is my new favorite river. It's a beautiful, diverse, glacial watershed. All 5 North American salmon species, steelhead, coastal cutthroat, bull trout, & dolly varden are all native & extant. It's an salmonid paradise that aptly means "place of sanctuary" in native Lushootseed. 🐟

JUST-IN
Salmon juveniles are vulnerable to predation by invasive African clawed frogs in Washington state doi.org/10.1139/cjz-... #salmon #predation

Cover of the September 2025 issue of Fisheries featuring kokanee salmon in Alaska, credit J. Ching.

In the latest #Fisheries: Strongholds for Pacific Salmon (open access), Reckoning with Coloniality in Alaska Trawl Fisheries (open access), Growth Patterns of Invasive Silver Carp in the Mississippi River Basin, Empowerment as a Goal for College Education, and more: academic.oup.com/fisheries/is...

A virtual scene depicting an angler on a dock alongside a truck pulling a trailered fishing vessel from a lake is projected on a tabletop. An inset video shows someone wiping down a fishing rod.

New #OpenAccess paper! Does augmented reality messaging lead people to take more aquatic #InvasiveSpecies prevention actions? Not in this case... but we have thoughts and it certainly still created some engaging conversations. Check it out! #BioInvasions
doi.org/10.1007/s002...

The long-awaited documentary will be complete by Mid-october. Wykeham Lakes focuses on what a thriving and flourishing freshwater ecosystem looks like. Filmed over 2 years a visual journey into the depths of an incredible freshwater lake. #freshwaterfish #pike #rudd #underwater #scuba #documentary

In the Richelieu River, 25 years' exposure to zebra mussel fouling and food competition has produced a longterm erosion of native unionid mussels, despite the river's chemistry being suboptimal for zebra mussels.
cdnsciencepub.com/doi/10.1139/...

Pre-print: utoronto.scholaris.ca/bitstreams/9...

How #climatechange is reshaping fish communities in the United States as temperatures rise and non-native fishes proliferate: @ian-vaughan.bsky.social overviews recent extensive work by @rumschsl.bsky.social www.nature.com/articles/d41... www.nature.com/articles/s41...

Padded sculpin.

Padded sculpin. Campbell River harbor, British Columbia.

Silk nets of caddisfly larvae on submerged rocks in the lower Ottawa River. Photo by A. Ricciardi.

A shout out to the invertebrates that contribute to river ecosystem function.

Polycentropid caddisfly larvae are cool suspension feeders/predators. In the St Lawrence & Ottawa rivers, we commonly find the classic trombone-shaped nets of the polycentropodid Neureclipsis. #WorldRiversDay

On #WorldRiversDay, our lab celebrates over two decades of research on river ecosystems!
#StLawrenceRiver
#RichelieuRiver
#OttawaRiver

On #WorldRiversDay the Ricciardi Lab salutes the majestic St Lawrence River. Gateway to the world's largest freshwater ecosystem; 1200km in length with archipelagos, extensive wetlands, fluvial lakes & an enormous estuary. It has >70 native species of freshwater fish & myriad invertebrate species.

#WorldRiversDay - protect the life beneath

www.cardiff.ac.uk/llyn-brianne...

Macro photo in front view of a robust golden beetle with short legs and widely spaced eyes, its body covered in short velvety hairs. The beetle is standing on wet, light-colored rock.

The fine velvety hairs on this Lutrochus travertine beetle trap air like a little bug scuba tank to help it breathe underwater. Arizona.

New paper from our lab: The use of #microplastics as case-building material by larval caddisflies facilitates the transfer of plastic (& potentially its associated contaminants) to predatory fish.

England’s rivers ‘under threat’ as water extraction surges to record levels Exclusive: Investigation finds 76% rise in water taken from rivers and lakes for industrial or public consumption in two decades

River abstraction has soared 76% over two decades, threatening rivers, ecosystems and future supply. Water companies fall back on extracting more from already stressed rivers 4/4
www.theguardian.com/environment/...

Aquatic Invasive Plants: A Field Guide for Michigan’s Lakes, Streams and Ponds This field guide is designed to help those who spend time around Michigan’s lakes, streams, and ponds learn how to identify aquatic invasive plants they may encounter. Each invasive plant entry includ...

🌟 Now available! "Aquatic Invasive Plants: A Field Guide for Michigan's Lakes, Streams, and Ponds" is now available for purchase!

spartanspiritshop.msu.edu/products/aqu...

#ASLO is seeking an Editor-in-Chief for Limnology & Oceanography Letters!

Join a Gold Open Access journal of cutting-edge research in #limnology and #oceanography. As EIC of #ASLO_Letters, you'll be shaping the future of #aquaticscience!

🚨 Deadline: Oct 15, 2025
www.aslo.org/call-for-app...

Muskrats may be key to solving invasive aquatic plant problems, study finds LANSING— In the battle against invasive species, the common muskrat emerges as an unlikely hero. A new study in the journal Freshwater Science sheds light on these oft-overlooked rodents and their eco...

www.miningjournal.net/life/2025/09...

A square sampling plate that is completely covered by zebra mussels.

Photos have been rolling in for our Zebra Mussel Safari program and whenever I see photos like this come in, I'm grateful I don't have to count these by hand. 😂

Cambarus robustus at Bronte Creek Provincial Park.

I went on a solo hike today at Bronte Creek Provincial park with the goal of witnessing the beginning of the salmon run. The salmon haven’t made it this far west yet, but I was blessed to find this beautiful Cambarus robustus who had recently molted.

Invasive species teams ask Revelstoke, Golden for input on fish disease Columbia Shuswap Invasive Species Society providing a community member, business survey to gauge potential economic impacts of whirling disease

The Columbia Shuswap Invasive Species Society is spreading public awareness & seeking feedback from businesses in Revelstoke about potential economic impacts of whirling disease, which infects certain fish & has reached some waterways in B.C. 🦠

www.revelstokereview.com/local-news/i...