1/🧵 Over the past decade, misinformation in the popular media & the opinion pages of some journals has promoted the claim that concern over species invasions is overblown, because "most invasions do not cause extinctions". Here is a brief reminder of what scientific evidence shows... #bioinvasions

Whether you're a resident, angler, boater, or water steward, you can use this new MSU field guide to brush up on aquatic invasive plants -- and become part of the solution to stop their spread: buff.ly/7dRGNFp

New episode of the Teach Me About the Great Lakes podcast is out! I joined a couple other invasive species folks to talk about the new-ish aquatic invasive species in the #GreatLakes region we think people should know about www.teachmeaboutthegreatlakes.com/113

The invasive American Signal Crayfish is driving the decline of the UK’s native White-clawed Crayfish. Learn how data can guide management & control strategies in our final crayfish training webinar with Nicky Green on 11th November. Sign up here: 🔗 www.eventbrite.co.uk/e/1208652485...

The lake sturgeon (a 100-year-living, 90-kg relic from the age of dinosaurs) is returning to Missouri’s rivers after near-extinction from dams and pollution. The revival of a keystone species and signalling broader recovery of the Mississippi basin’s river systems. buff.ly/NJFBX6f #ShareGoodNewsToo

A new Special Issue on aquatic invasions has just been released in NeoBiota. Read the editorial to gain an overview of all the papers: Invasions in aquatic systems. Use this link: neobiota.pensoft.net/article/1678... #bioinvasions @neobiota.pensoft.net

"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

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

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...

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. Campbell River harbor, British Columbia.

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...

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.

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/...

🌟 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...

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. 😂

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.

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...

🐚 In the northern Adriatic, invasive Polydora worms are damaging oyster farms. #Genomics helps identify species, track spread, and inform strategies linking science with aquaculture and marine policy. 🔗 www.erga-biodiversity.eu/post/alien-p... @unibo.it #Bioeconomy

#ResistanceEarth #BlueEarth Fish biodiversity is declining in U.S. streams and rivers due to climate change and human introduction of game fish and invasive species. Cold-water streams have been hit hardest, with a 50% decrease in species abundance since 1993. abcnews.go.com/US/us-stream...

Rivers are heating up faster than the air − that’s a problem for aquatic life and people doi.org/10.64628/AAI... www.pnas.org/doi/10.1073/...

A common freshwater fish seems to be attracted to caddisfly cases containing microplastics and consumes their cases (whole or in part) during predation. Incorporation of plastic in larval caddisfly cases leads to another route of transfer into aquatic food webs. www.sciencedirect.com/science/arti...

Crayfish in Journal of Biogeography We analyse how natural and human historical events have shaped the diversity of Austropotamobius crayfish Strikingly, lots of taxonomic work remains to be done Great team, led by Lucian Pârvulescu @ebdonana.bsky.social onlinelibrary.wiley.com/doi/10.1111/...

I went on my first bull trout redd survey of the year today. Saw some absolutely incredible fish! One of the biggest specimens I've ever seen, and it was close enough to touch (I was invisibly filming from the other side of a root wad). 🐟