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ST. CROIX RIVER FISH RESTORATION
Machhli ado about the return of HilsaThe return of Hilsa fish to the upper Ganga after decades marks a significant triumph in conservation. Government labs are successfully imp...
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...
In 1990, Utah officials killed more than 99% of the fish in a 17,000-acre reservoir; years later, it became a top trout fisheryIn 1990, Utah wildlife officials took the bold step of using rotenone to eradicate over ninety-nine percent of the fish biomass in the rese...
Beginning in 1877, Japan imported California rainbow trout for food and sport fishing; escaped fish later competed with native salmonids and disrupted their spawning groundsIn 1877, Japan imported rainbow trout from California for culinary and recreational purposes. However, these fish escaped their aquaculture...
In 2012, PacifiCorp launched a trap-and-haul program to move adult salmon upstream past Merwin Dam. 14 years later, researchers found 2 stages in the system but 1 decisive bottleneck: young salmon failing to find the artificial current downstreamA trap-and-haul program on Washington’s Lewis River helps adult Chinook salmon bypass Merwin Dam by transporting them in trucks to upstream...
In the 1990s, China began regreening one of Earth's most eroded landscapes; more than 100 million tons of soil stopped entering the Yellow River each yearChina's Loess Plateau has seen a revolutionary ecological overhaul, where farmers took the initiative to plant trees and construct terraces...
In 2006, engineers reused 250,000 cubic yards of dredged sand to restore Elders Point East in Jamaica Bay. 10 years later, the approach had restored 40 acres of wetlands and helped reverse marsh-island erosionA New York Harbor dredging project became an opportunity to restore Jamaica Bay’s declining marsh islands. Beginning in 2006, the U.S. Army...
In 1992, Congress backed a plan to dechannelize Florida's Kissimmee River and restore its watershed. 28 years later, the project had restored 19 of 44 river miles and 6,500 acres of floodplain wetlands, with wildlife returningFlorida's Kissimmee River underwent a significant restoration after decades of channelization. This project aimed to revive its natural flo...
In 2002, a Maryland angler caught a huge fish he had never seen before. The discovery sparked panic, inspired horror movies and the species became one of America's most notorious invasive fishA strange fish caught in a Maryland pond in 2002 soon became the center of a nationwide invasive species scare. The discovery of the northe...
In 1953, a concrete barrier blocked fish migration in Massachusetts. 70 years later, it’s finally being removed to bring the native trout backSoon, a concrete barrier currently obstructing fish migration in Fresh Brook will be dismantled. This ambitious restoration initiative seek...
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...
Since 2022, Alaska crews have placed more than 1,000 whole trees in a creek damaged by gold mining, helping restore 2.3 miles of salmon habitatResurrection Creek in Alaska has been revitalized into a thriving river thanks to comprehensive restoration efforts. By introducing entire ...
In 2014, Nevada agencies began poisoning 44 miles of waterway after hand-removal failed; they later released about 400 native troutThe recovery of a native trout population in a Nevada river spans fifteen arduous years, marked by extensive measures. After exploratory dr...
In 2001, Denmark turned a 19-km straight river into a 26-km winding one, but decades later researchers found nature was still struggling to rebuild what humans had destroyedDenmark's Skjern River restoration has skillfully reshaped a once-straight channel back into a meandering waterway. This innovative initiat...
By the mid-2010s, California agencies had placed more than 200,000 tons of gravel below Keswick Dam, restoring egg-laying habitat for endangered salmonIn an initiative aimed at revitalizing the spawning grounds for the endangered winter-run Chinook salmon, California has been transporting ...
By the mid-2010s, California agencies had placed more than 200,000 tons of gravel below Keswick Dam, restoring egg-laying habitat for endangered salmonThe construction of dams along the Sacramento River hindered the natural flow of gravel that is essential for salmon spawning. Efforts are ...
In 2011, California turned dormant rice fields into winter salmon nurseries; the young fish grew up to eight times faster than in riversFlooded rice fields in California's Yolo Bypass are helping young salmon grow significantly faster. These fields provide a rich food source...
In 2000, the American West entered a megadrought that became its driest stretch in roughly 1,200 years. Years later, it left major lakes and reservoirs majorly depleted, with some losing enough water to expose miles of lakebedSeveral major North American lakes are experiencing significant water level declines. Drought, warming temperatures, and increased water de...
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...
In the 1800s, Americans planted tamarisk for windbreaks and erosion control; by 2005, the tree had spread across western river systems and become a major management concernTamarisk was originally brought in for various practical applications, but it has since proliferated across western waterways. This invasiv...