One of North America’s most dangerous invasive species is hitchhiking on fish 
By Richard Pallardy US Source: science 3/10/2023
Richard Pallardy
Credit: Jaclyn Hill
Zebra mussels (Dreissena polymorpha) are one of the most catastrophic aquatic invasive species in North America. Native to Russia and Ukraine, these fingernail-size mollusks have spread around the world, often carried in ballast water—used to stabilize boats—as larvae, where they’ve caused billions of dollars of damage to fisheries, water treatment facilities, and other aquatic industries by clogging intake pipes and robbing nutrients from ecosystems. Now, researchers have discovered a new way they invade—by hitchhiking on fish.
 

The scientists made the observation while assessing fish communities in a lake in southeastern Quebec last year. They found a zebra mussel attached to a lake chub (Couesius plumbeus), a species of minnow typically about 12 centimeters long. The observation, reported this month in Biological Invasions, is the only time a nonlarval freshwater bivalve has been seen attached to a fish. The mollusk had latched onto the hapless minnow (pictured above) using protein fibers called byssal threads, which they also use to attach to plants, rocks, and concrete.

 
Chub, Lake Continue...

News Id SourceStampcountry
47261,000 salmon escaped a farm near the Canada-U.S. borderCTV News2019-09-15CA
4727UK vessels illegally threw away 7,500 tons of cod in North Sea, campaigners sayindependent2019-03-11UK
4728Eight million salmon killed in a week by sudden surge of algae in Norwayindependent2019-05-22NO
4729Chicago water pollution may be keeping invasive silver carp out of Great Lakesscience daily2019-08-09US
4730NOAA Fisheries Declares Unusual Mortality Event Due to Elevated Strandings of Ice Seals in the ArcticNOAA2019-09-12US
4731Hunting And Fishing To Expand On 77 National Wildlife Refuges, Including 10 In The PNWJefferson Public Radio2019-09-11US
4732Whaley Bridge: What happened to Toddbrook Reservoir's fish?BBC News2019-08-11UK
4733Advocates sound alarm on unfolding disaster in B.C. salmon fishing industryThe Canadian Press2019-09-09CA
4734Video: Angler catches monster muskie at Belle River marinaWindsor Star2015-11-15CA
4735‘Unsafe’ levels of antibiotics found in rivers in 72 countriesfrance242019-05-27CA
4736'The fish can't get through': Tsilhqot'in issues salmon closure notice after Big Bar landslideCBC News2019-09-03CA
4737Рыбак в Томской области выловил гигантскую щукуTB-22019-09-03RU
4738Salmon can now be transported around Fraser River landslide by truck, officials sayThe Canadian Press2019-09-03CA
4739Squamish River pink salmon fishery should be closed, say local conservationistsCBC News2019-09-02CA
4740Battling the tench fish invasion: 'Like Game of Thrones under water'montreal gazette2019-08-31CA
4741Ocean Choice International off the hook for illegal fishing chargeCBC News2019-08-29CA
4742Red Deer to remove invasive goldfish infestation from pondCBC News2019-08-29CA
4743Alarm raised after invasive smallmouth bass spotted in MiramichiCBC News2019-08-27CA
4744Group braces for ‘really bad year’ for salmon population in Sackville RiverGlobal News2016-08-16CA
4745Heat stress that killed thousands of salmon in Alaska is a sign of things to come, scientist warnsCBC News2019-08-24CA
4746Rocky River construction stalling salmon, author saysCBC News2015-08-18CA
4747Fish with ‘two jaws’ caught in New YorkIndependent2019-08-22US
4748От Ганга до Волги: как спасти реки от загрязнения?habr2019-08-22RU
4749Lured in: Fishing at stocked trout pondsCBC News2019-08-22CA
4750Gulf of St. Lawrence cod extinction 'highly probable,' says DFOCBC News2019-08-21CA

193 194 195 189 of [196 - pages.]