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INVASIVE CARP
In 2003, scientists targeted invasive fish in the Grand Canyon. By 2006, Rainbow Trout fell from 90% to less than 10% of the catchFor four consecutive years, scientists actively removed invasive fish species from the Colorado River. This strategic initiative led to a n...
03 Sep, 2026, 07.33 PM IST
In 1892, engineers began the Chicago Canal to divert sewage using 42 million cubic yards of earth; more than a century later, it may help Asian carp reach the Great LakesIn 1885, Chicago undertook the monumental task of reversing its river flow to safeguard drinking water by rerouting sewage from Lake Michig...
02 Sep, 2026, 03.30 PM IST
In 2009, Illinois treated a six-mile canal with more than 1,800 gallons of fish-killing poison — and found just one invasive carpTo address the menace of invasive Asian carp, Illinois officials deployed rotenone in a canal, leading to the recovery of numerous fish; ho...
30 Aug, 2026, 05.03 PM IST
In 1970s, silver carp were brought to the US for aquaculture. Now the jumping fish threaten a $20 billion Great Lakes industryInvasive silver carp are rapidly approaching the Great Lakes, raising alarm over potential ecological and economic damage. The recent detec...
24 Aug, 2026, 07.12 PM IST
In 1995, a Tasmanian fisherman found a dead carp. What followed was a four-decade operation to remove nearly 50,000 European fishA dead carp spotted in Tasmania's Lake Crescent in 1995 triggered a 28-year campaign to eradicate invasive European carp from Lake Crescent...
21 Aug, 2026, 01.48 PM IST
In 1960, Japan’s future emperor took 18 bluegills home from Chicago. Their descendants multiplied into millions and invaded Lake BiwaA significant ecological problem arose from a 1960 gift of bluegills to Japan's Crown Prince Akihito. These fish propagated swiftly, infilt...
18 Aug, 2026, 10.53 PM IST
Earlier this year, the U.S. Army Corps tested Chicago's invasive-carp barrier at 3 electrical levels. Now, engineers know how the system behaves when voltage rises to 4.6 volts per inch, helping prepare for a future Great Lakes invasion threatEngineers tested Chicago's electric fish barrier at higher electrical levels this year. This testing aimed to understand potential response...
16 Aug, 2026, 12.19 AM IST
In the 1970s, the US introduced four carp species to control weeds; decades later, these carp spread as far as Minnesota, threatening native fishFour Chinese carp species were imported to southern fish farms in the 1970s. These fish escaped into the Mississippi River system after flo...
31 Jul, 2026, 04.40 PM IST
In 1900, Chicago made its river flow backward to keep sewage out of Lake Michigan, redirecting the water toward the Mississippi Basin insteadChicago reversed its river flow in the late 1800s to protect its drinking water. This engineering feat sent waste away from Lake Michigan a...
24 Jul, 2026, 05.51 PM IST
Greece has placed a bounty on the head of the world's most toxic pufferfish, paying fishermen €5.33 per kilo to hunt the invasive predatorGreece is incentivizing fishermen with a generous bounty to hunt the dangerous silver-cheeked toadfish, an invasive species from the Indian...
29 Jun, 2026, 03.48 PM IST
Trump calls Mark Carney ‘future governor of Canada’ in latest Truth Social post, rekindling jabs at Canadian leadershipUS President Donald Trump has again called Canadian Prime Minister Mark Carney the 'future Governor of Canada'. This follows previous insta...
11 Mar, 2026, 07.25 AM IST
Worries over racism, waterways inspire push to rename fish15 Jul, 2021, 01.41 PM IST
Beware of Chinese mussel-flexing: Is China fishing in troubled waters with this new form of biological warfare?Zigzag-patterned Asian date mussels have travelled undetected across the globe to invade British waters.
30 Jan, 2019, 08.45 AM IST