Limnology

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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May 05, 2018 - 9:10 am
MONTPELIER, Vt. (AP) — Two decades after the diminutive Lake Champlain was ridiculed for its brief listing in federal law as one of the Great Lakes, a program that studies the lake has won a designation that could more than double its government funding. The Lake Champlain Sea Grant Program has...
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January 11, 2018 - 6:52 am
BERLIN (AP) — Scientists say millions more people around the world are threatened by river floods in coming decades due to climate change. Researchers in Germany say greater flood defenses are particularly needed in the United States, parts of India and Africa, Indonesia and Central Europe. River...
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