New UMass Amherst research shows fishways have not helped fish

Science CodexJanuary 16, 2013Despite modern designs intended to allow migratory fish to pass, hydropower dams on major Northeast U.S. waterways, including the Merrimack and Connecticut rivers, have failed to let economically important species such as salmon, shad and river herring reach their spawning grounds, say a team of economists and fish ecologists including Adrian Jordaan of the University Read More…

Japanese salmon bred with ‘surrogate’ fish

UPIJanuary 15, 2013Japanese scientists say they've successfully bred a type of salmon indigenous to the country through the use of surrogate parents of a different species.Researchers at the Tokyo University of Marine Science and Technology reported they extracted spermatogonia, or primordial germ cells, from endangered yamame salmon, a Japanese species that lives the entirety of its life in Read More…

Fish friendship discovered during study on marine life

Metro WindsorBy Luke SimcoeJanuary 15, 2013While testing a new method for tracking fish, a University of Windsor researcher has inadvertently played matchmaker to a pair of yellow perch.Dr. Aaron Fisk and his team at the Great Lakes Institute tagged the fish and released them into ponds near Harrow, Ont. last fall. The tags sent data to six state-of-the-art receivers, recording the fishes’ Read More…

Study: salmon runs boom, go bust over centuries

Billings GazetteJanuary 15, 2013Salmon runs are notoriously variable: strong one year, and weak the next. New research shows that the same may be true from one century to the next.Scientists in the past 20 years have recognized that salmon stocks vary not only year to year, but also on decades-long time cycles. One example is the 30-year to 80-year booms and busts in salmon runs in Alaska and on Read More…

Laos worries about Mekong erosion

Bangkok PostJanuary 15, 2013The Laos Ministry of Public Works and Transport has been urged to speed up construction of an embankment along the Mekong River amid concerns about erosion along its banks.Deputy Prime Minister Somsavat Lengsavad has directed the ministry to protect the river banks, pointing out that Thailand has already constructed flood protection embankments, the Vientiane Times Read More…

On Mekong River, worries about surging trade with China

Voice of AmericaBy Steve SandfordJanuary 14, 2013China's rapid economic expansion in Southeast Asia has led to increasing reliance on the Mekong River for trade. Dams and new ports are expected to help trade in the coming years, but not everyone is welcoming the development.The Mekong River since ancient times has served as a major transport route. Now, with modern ships and new ports, the river Read More…

Laos dam project tests credibility of Mekong River Commission

Voice of AmericaBy Daniel SchearfJanuary 14, 2013Ministers of lower Mekong River nations gather in Laos this week for annual meetings of the Mekong River Commission.  The MRC, which facilitates management of the river's resources, says they are likely to discuss the controversial Xayaburi Dam project - a key worry of environmentalists.  Water and environment ministers from Cambodia, Laos, Read More…

The 32 most alarming charts from the government’s climate change…

GristBy Philip BumpJanuary 14, 2013Just reading about the government’s massive new report outlining what climate change has in store for the U.S. is sobering. In brief: temperature spikes, drought, flooding, less snow, less permafrost. But if you really want to freak out, you should check out the graphs, charts, and maps.For the more visually oriented bunker builders out there, here are the 32 Read More…

World fisheries: are we managing an effective decline?

World FishingBy Adrian TatumJanuary 15, 2013The global fishing industry has changed dramatically over the past decade. Fishing and aquaculture supplied the world-wide market with 148 million tonnes of fish in 2010 with that expected to rise to 154 million tonnes when final figures are released for 2011.According to FAO’s, The State of Fisheries and Aquaculture report for 2012, with sustained Read More…

Voluntary actions by irrigators help Shasta River get its largest…

CDFW NewsBy Bob HawkinsJanuary 15, 2013Near-record numbers of Chinook salmon returned successfully to the Shasta River last fall despite daunting, drought-related environmental conditions and a large number of migrating fish that increased the threat of disease.The California Department of Fish and Wildlife (CDFW) counted more than 29,000 adult Chinook salmon at video camera monitoring sites and Read More…