Opah seen more often off Southern California

UT San DiegoAugust 20, 2012It was an only-in-San-Diego kind of moment: On a loading dock outside the federal fishery lab in La Jolla, two giant disc-shaped opah — some of the ocean’s more captivating creatures — lay frozen and shining in the morning sun.Researcher Owyn Snodgrass poured water on the stiff fish, melting a thin layer of ice and revealing orange-pink hues and silver spots. Read More…

Study looks at fish survival over Foster Dam

Albany Democrat-HeraldBy Alex PaulAugust 20, 2012 Juvenile steelhead and chinook salmon appear to have a greater chance of survival when passing over Foster Dam through a weir than through the turbine system, according to biologist David Griffith of the U.S. Army Corps of Engineers. Although the final results of the first phase of a long-term study at the reservoir won’t be ready for a couple Read More…

Tunneling under California’s Bay Delta water wars

High Country NewsBy Emily GreenAugust 20, 2012On July 25, California Gov. Jerry Brown announced to an expectant press corps that the state plans to construct a pair of multibillion-dollar tunnels under the Sacramento-San Joaquin Bay Delta in order to modernize and possibly expand the export of Northern California's water, mostly south to farms and cities. After decades of rancor over what was Read More…

Freshwater fish species going extinct at rate 877 times faster than…

The Columbia Basin BulletinAugust 17, 2012From 1900-2010, freshwater fish species in North America went extinct at a rate 877 times faster than the rate found in the fossil record, while estimates indicate the rate may double between now and 2050.This new information comes from a U.S. Geological Survey study to be published in the September issue of the journal BioScience. In the fossil record, Read More…

Alaskan governor expands call for help for salmon fisheries

FISBy Natalia RealAugust 20, 2012Alaskan Governor Sean Parnell has asked US Secretary of Commerce to declare a fishery disaster for the chinook salmon fisheries in the Upper Cook Inlet area. In a letter addressed to the secretary Rebecca Blank, Parnell refers to a previous request, dated 14 July, in which the governor had informed her of the significant declines in chinook salmon abundance and Read More…

For a silvery Calif. fish, a special moonlit night

NPRBy Amy WaltersAugust 17, 2012Summertime is beach time in Southern California, even at night. Locals gather around bonfires, roast marshmallows and enjoy each other's company. On some very special nights, there's even sex — at least for the fish.The grunion run happens only in the spring and summer months. Late at night, under the full and new moons, thousands of tiny, silvery fish swim to Read More…

With warming water what’s better for juvenile salmon: in-river…

The Columbia Basin BulletinAugust 17, 2012With fast-warming water conditions, federal, state and tribal salmon managers this week protested U.S. Army Corps of Engineers’ plans to shift juvenile salmon “transportation” from barges to trucks.The transportation plan is called for in NOAA Fisheries’ Endangered Species Act biological opinion regarding listed fish. At this time of year the Read More…

Warmer, faster, stronger: Research reveals unexpected benefits of…

PhysOrgAugust 16, 2012New research by McMaster biologist Graham Scott suggests that growing up at warmer temperatures helps some aquatic animals cope with climate change, raising questions about the limits of adaptation. Working with Ian Johnston at the University of St Andrews in Scotland, Scott has found that raising zebrafish at warmer temperatures as embryos actually improves their ability Read More…

Mercury and Alaska fish: When do the benefits outweigh the risks?

Anchorage PressBy Mary LochnerAugust 16, 2012How much methylmercury exposure is too much and how much is acceptable when the source of the toxin also provides health benefits?That’s the question that University of Alaska Fairbanks researcher Lawrence Duffy has been trying to answer. “We’re trying to develop a mathematical formula for doing risk-benefit calculations,” Duffy said.But Read More…

Farm pollution draws scrutiny as industrial dumping declines

OPBAugust 16, 2012Eight times in seven years, a state inspector asked Joe Lemire to keep his cattle off the banks of Pataha Creek. Why? Because they drop cow pies in the water. Cows trample pollution-filtering streamside plants. Cows mash the banks down so dirt gets into the stream, which had been targeted for cleanup by the government since the early 1990s. The state even offered to pay for Read More…