Limnology

In this Nov. 11, 2016, photo provided by the Museum of Hydrobiological Science of the Chinese Academy of Sciences, a Chinese paddlefish specimen made in 1990 is seen on display at the Museum of Hydrobiological Science of the Chinese Academy of Sciences in Wuhan, China. The Chinese paddlefish's sharp, protruding snout made it one of the largest freshwater species in the world. Since scientists declared it extinct in a research paper published last week, Chinese internet users media outlets have been paying tribute to the hefty creature. (Museum of Hydrobiological Science of the Chinese Academy of Sciences via AP)
January 10, 2020 - 10:10 am
BEIJING (AP) — The Chinese paddlefish's sharp, protruding snout made it one of the largest freshwater species in the world. Since scientists declared it extinct in a research paper published last week, Chinese internet users and media outlets have been paying tribute to the hefty creature. “It's...
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In this Oct. 17, 2019, photo provided by the U.S. Fish and Wildlife Service, a pile of recently dead freshwater mussels are piled along the shore of the Clinch River near Wallen Bend, Tenn. While freshwater mussels have been plagued for decades by habitat loss, invasive species, pollution, sedimentation and other issues, there's a possibility that the die-off in the Clinch River could be connected to infectious disease. (Meagan Racey/U.S. Fish and Wildlife Service via AP)
December 17, 2019 - 1:07 am
KYLES FORD, Tenn. (AP) — On a recent late fall afternoon at Kyles Ford, the white branches of sycamore trees overhung the banks of the Clinch River, leaves slowly turning yellow. Green walnuts covered the ground. The shallow water ran fast and cold over the rocky bottom, but it was littered with...
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Dead fish lie on the shores of Koroneia Lake in northern Greece, on Thursday, Sept. 19, 2019. Tens of thousands of dead fish are washing up as the water level has plummeted to less than a meter deep (three feet) and the lack of oxygen in the water is leading to mass mortality of everything in it. (AP Photo/Giannis Papanikos)
September 19, 2019 - 12:54 pm
KORONEIA, Greece (AP) — Tens of thousands of dead fish have been found on the banks of a lake in a protected nature reserve in northern Greece after high temperatures and drought conditions caused a severe drop in water levels. State environmental officials said Thursday that the water level at...
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U.S. Sen. Mike Rounds, R-SD, chairman of the Senate subcommittee on Superfund, Waste Management and Regulatory Oversight, listens as Bill Beacom of Sioux City, Iowa, a retired Missouri River ship captain, makes a point after Rounds held a hearing on the U.S. Army Corps of Engineers' management of 2019 Missouri River Basin flooding Wednesday, Aug. 28, 2019, in North Sioux City, South Dakota. (Tim Hynds/Sioux City Journal via AP)
August 28, 2019 - 9:27 pm
NORTH SIOUX CITY, S.D. (AP) — An official with the U.S. Army Corps of Engineers said Wednesday a study is needed to consider changes to flood-control measures along the Missouri River south of Sioux City, Iowa. Speaking after a U.S. Senate field hearing in North Sioux City, South Dakota, Brig. Gen...
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FILE - In this June 13, 2012, file photo, Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill. A newly released study says if Asian carp reach Lake Michigan, they probably would find enough food to spread far and wide. Some experts have questioned whether there’s enough plankton in the lake to sustain the invasive carp away from shoreline areas. But the new report released Monday, Aug. 12, 2019, by University of Michigan scientists says despite a drop-off of plankton caused by exotic mussels, the voracious carp could feed on other organic material when venturing into deeper waters. (AP Photo/John Flesher, File)
August 12, 2019 - 2:42 pm
TRAVERSE CITY, Mich. (AP) — Asian carp are likely to find enough food to spread farther if they establish breeding populations in Lake Michigan, reinforcing the importance of preventing the invasive fish from gaining a foothold, scientists said in a paper released Monday. A study led by University...
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May 04, 2019 - 12:31 pm
FLAGSTAFF, Ariz. (AP) — Ted Kennedy sums up what he sees along the river in the Grand Canyon: "It's buggy out there." That is to say, an experiment to change the flow of water from a dam near the Arizona-Utah state line appeared to boost the number of aquatic insects that fish in the Colorado River...
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March 01, 2019 - 9:02 am
BERLIN (AP) — Scientists say images of Martian craters taken by European and American space probes show there likely once was a planet-wide system of underground lakes. Researches in Italy and the Netherlands say data collected by NASA and ESA probes orbiting the red planet provide the first...
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August 20, 2018 - 1:37 pm
DENVER (AP) — In a story Aug. 15 about the Colorado River, The Associated Press, relying on information from the U.S. Bureau of Reclamation, reported erroneously when potential cutbacks could begin if a shortage is declared. A shortage could be declared in the latter part of 2019, and cutbacks...
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June 18, 2018 - 4:55 pm
New research suggests drinking water supplies in Pennsylvania have shown resilience in the face of a drilling boom that has turned swaths of countryside into a major production zone for natural gas. Energy companies have drilled more than 11,000 wells since arriving en masse in 2008, making...
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FILE - In this August, 2009, file photo provided by the Department of Defense, a Cook Inlet beluga whale calf, left, and an adult breach near Anchorage, Alaska. A new study concludes that endangered beluga whales in Cook Inlet changed their diet over five decades from saltwater prey to fish and crustaceans influenced by freshwater. The analysis of isotopes in beluga bone and teeth by University of Alaska Fairbanks researchers showed belugas formerly fed on prey that had little contact with freshwater. (Christopher Garner/Department of Defense via AP, File)
June 15, 2018 - 7:22 pm
ANCHORAGE, Alaska (AP) — Beluga whales in Alaska's Cook Inlet may have changed their diet over five decades from saltwater prey to fish and crustaceans influenced by freshwater, according to a study by University of Alaska Fairbanks researchers. An analysis of isotopes in beluga bone and teeth...
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