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GRAND CANYON FISH REMOVAL EXPERIMENT
In 2003, scientists targeted invasive fish in the Grand Canyon. By 2006, Rainbow Trout fell from 90% to less than 10% of the catch- A synthetic hormone was added to a remote Canadian lake in tiny amounts — then an entire fish population nearly collapsed
- In 2024, four dams were removed from an American river. Over 400 miles of Salmon habitat reopened. Scientists are now watching an ecosystem rebuilding itself
- This 590-mile Canadian train journey takes you through mountains, canyons and some of North America’s most spectacular sceneryThis 590-mile Canadian train journey takes travellers from Vancouver through dramatic canyons, forests and towering mountain landscapes bef...02 Sep, 2026, 08.07 PM IST
- Maryland spent $12 million on a fish lift in 1991 to move American shad past Conowingo Dam; decades later, annual runs remained far below the 2 million-fish targetMaryland invested $12 million in a fish lift to help migrating shad overcome the Conowingo Dam. This technological solution proved ineffect...02 Sep, 2026, 03.10 PM IST
- Water, water everywhere: Grand Canyon's flood paradox leaves South Rim high and dryDeadly flooding at Grand Canyon has severed the South Rim's water supply. This event has caused indefinite lodging closures and economic da...02 Sep, 2026, 08.58 AM IST
- In 2012, Cleveland Metroparks surveyed Beecher’s Brook after Ohio listed the Chagrin River as impaired, then restored 350 feet. 8 years later, fish scores improved againBeecher's Brook restoration project removed a fish passage barrier and enhanced habitat. This work led to marked improvements in fish and m...01 Sep, 2026, 08.33 PM IST
- In 1918–1921, one dam built on California's Carmel River provided water storage but blocked fish runs; in 2015 it came down, reopening 25 miles of habitat for steelhead troutA century-old dam on California's Carmel River was removed, restoring fish spawning grounds. Crews rerouted the river and dismantled the st...01 Sep, 2026, 01.40 PM IST
- Grand Canyon flash flood kills two as search continues for missing hikerA powerful flash flood swept through Grand Canyon National Park over the weekend. Rescuers found the bodies of a Texas chiropractor and at ...01 Sep, 2026, 08.40 AM IST
- In 2008, Colorado's Curecanti National Recreation Area started screening watercraft for invasive mussels at Blue Mesa. 10 years later, the reservoir remained completely mussel-freeIn 2008, Colorado’s Curecanti National Recreation Area began screening boats and watercraft for invasive mussels at Blue Mesa Reservoir. Th...31 Aug, 2026, 08.20 PM IST
- Grand Canyon flood: Warnings issued for Arizona, Utah and Colorado as flash flood leaves 1 dead, 15 missingA catastrophic flash flood hit the Grand Canyon in Arizona on Saturday, resulting in at least one fatality. Approximately fifteen individua...31 Aug, 2026, 08.14 PM IST
- In 2014, Arizona used fish poison to clear an invasive fish from Virgin River after mechanical removal methods failed. Then the red shiner came backFor years, conservationists waged a relentless battle against the invasive red shiner in the Virgin River. Initial rotenone treatments show...31 Aug, 2026, 05.11 PM IST
- In 1869, Grand Canyon was named by legendary explorer Major John Wesley Powell, over 150 years later scientists are revealing details about when North America's iconic marvel landscape was created, disappearance of mystery lakeColorado River originates at La Poudre Pass in Rocky Mountain National Park in Colorado and runs about 1,450 miles (2,330 km). Scientists h...31 Aug, 2026, 04.50 PM IST
- Grand Canyon shuts for tourists after flash flood knocks out sole water pipeline; 15 people missingA major flash flood at Grand Canyon swept debris into the Colorado River. This event damaged the park's sole water pipeline, forcing evacua...31 Aug, 2026, 01.53 PM IST
- After Nepal, a powerful flash flood hits Grand Canyon in Arizona leaving about 15 people missing; footbridges, bunkhouses destroyed by mud and boulders: Watch videoA powerful flash flood tore through Arizona's Grand Canyon on August 29, sending mud, boulders and debris through Bright Angel Canyon. Abou...31 Aug, 2026, 09.10 AM IST
- In 1992, Congress authorized the removal of 2 dams that had blocked salmon for a century. 24 years later, the Elwha River once again flowed freely from the Olympic Mountains to the seaElwha River Restoration changed one of America’s most remarkable river recovery stories. Two dams once blocked salmon from reaching upstrea...26 Aug, 2026, 06.30 PM IST
- In 1973, NASA sent two fish into space to test their swimming ability in zero gravity; they initially swam in loops but later used light as cue to move normally after 21 daysIn 1973, NASA sent two mummichog fish and 50 eggs aboard Skylab 3 to study how weightlessness affected their sense of balance. The fish ini...25 Aug, 2026, 08.12 AM IST
- In 2014, Maine began developing a fish elevator to carry American shad past Milford Dam. 12 years later, the system could reopen 600 miles of river habitat to a fish whose migration has been blocked for decadesA Maine fish elevator could reopen 600 miles of river habitat for alewives, giving a small fish a much bigger chance to return upstream. Th...21 Aug, 2026, 06.59 PM IST
- In 2024, managers deliberately cooled the Colorado River to protect the Grand Canyon from invasive smallmouth bass. 2 years later, no bass recruitment had been detected, but the effort cost $19.1 million in replacement powerManagers at Glen Canyon Dam used an unusual strategy to protect native Colorado River fish from invasive smallmouth bass: they deliberately...16 Aug, 2026, 12.46 AM IST
- In 1963, federal engineers completed Glen Canyon Dam in Arizona for water storage and power, which turned the Colorado River colder and disrupted native fish reproductionGlen Canyon Dam altered the Colorado River's temperature and flow significantly. This change negatively affected the endangered humpback ch...11 Aug, 2026, 07.29 PM IST
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