Could improvements in Chicago waterways invite unwelcome guests?

Could improvements in Chicago waterways invite unwelcome guests?

Source: greatlakesnow

10/29/2024

For close to five decades, invasive carp have overrun huge swaths of the Mississippi River Basin. Yet the hardy, oversized and voracious silver carp and bighead carp stopped about 40 miles southeast of Chicago and haven’t gone any farther. Now, scientists may have discovered the reason why: Chicago’s polluted water.

A new study published Friday in the journal Scientific Reports found the silver carp may have stopped advancing upriver due to contaminants in the Chicago Area Waterway System, the network of canals and rivers that make barge traffic possible between Lake Michigan and the Mississippi River and absorb the outflow of the city’s combined sewer system.

News Id		Source	Stamp	country
4801	'World Record' Siamese Giant Carp Caught In Thailand; 'The Fish Kept Slapping People With Its Tail'	Underwatertimes	2007-07-17	TH
4802	Kona cave reveals new species of fish	star bulletin	2007-09-11	US
4803	Cannibalism Of The Young Allows Individual Fish To Specialize	Underwatertimes	2007-05-23	SW
4804	Anglo-Irish tensions rise as British navy boards Irish vessel to stop it from fishing off Rockall	irish post	2021-01-06	IR
4805	Sudbury city councillor disappointed work to stop on Chelmsford trail after funding request denied	CBC News	2019-02-09	CA
4806	City to test Whitson River today	Sudbury Star	2015-09-02	CA
4807	Intersex fish and superbugs: Kiwis warned to watch what they flush	stuff	2021-01-09	NZ
4808	Guy Harvey Award up for grabs in 2021 fish art contest	Sun Sentinel	2021-01-05	US
4809	Maryland angler sets state's first record for invasive flathead catfish	foxnews	2021-01-07	US
4810	Local father, son hooked on a new addiction: ice fishing	orilliamatters	2021-01-07	CA
4811	Want a fishing memory that will last a lifetime? Visit this Idaho taxidermist	idahostatesman	2021-01-12	CA
4812	B.C. coast used as a 'sewer' by salmon farmers: scientist	CBC News	2006-10-12	CA
4813	Long-lived Deep-sea Fishes Imperiled by Technology, Overfishing; 'We Shouldn't Eat Grandmother'	Underwatertimes	2007-02-18	US
4814	Farmed Salmon Could Become an Invasive Species in Forest Streams	Underwatertimes	2007-03-08	US
4815	Thames 'clean enough' for salmon	bbc news	2007-03-26	UK
4816	Study: Fish 'Catch Shares' Scheme Reduces By-catch, Increases Per-Boat Revenue, Boosts Safety	Underwatertimes	2007-03-28	US
4817	Chesapeake Bay receives another D+ on health report, due largely to struggling rockfish population	baltimore sun	2021-01-05	US
4818	Royal Navy sends four warships into English Channel	daily mail	2021-01-02	UK
4819	Massive operation nets fleet of illegal fishers	the age	2006-04-06	AU
4820	Gender-changing fish are studied	United Press International	2006-04-11	US
4821	Scientists Try to Count Fish in Sea	Washington Post	2006-04-10	US
4822	30 New Fish Species Discovered On Borneo; 'The More We Look the More We Find'	Underwatertimes	2006-12-19	SW
4823	Climate Change has Surprising Effect on Endangered Naked Carp; 'Metabolic Holiday'	Underwatertimes	2006-12-19	US
4824	Snakeheads Appear at Home in the Potomac	washington post	2006-10-02	US
4825	Farming endangered blue-fin tuna	bbc news	2006-12-27	JP

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