Salmon

Photos: Ten Environmental Wins of 2009

Publication: National Geographic News   Date: December 8, 2009   View Article

A giant woolly rat found in Papua New Guinea is just one of hundreds of species previously unknown to science that were brought to light in 2009. These discoveries are just one of ten things the environment gained in 2009.

New Field Could Explain How Salmon, Turtles, Find Home

Publication: National Geographic News   Date: December 4, 2008   View Article

Sea turtles and salmon may use their sensitivity to Earth’s magnetic field to guide them home at the end of their epic coming-of-age journeys, suggest scientists aiming to solve one of nature’s enduring mysteries.

The newly proposed theory is one of several ideas being explored under the banner of an emerging scientific field dubbed movement ecology.

Environment Photos Weekly: Flood, Fires, More

Publication: National Geographic News   Date: August 11, 2008   View Article

Captions for photos of environmental issues and events in the news. Shots include thousands of salmon swimming upstream in Alaska, a lightning storm in London, rain-delayed events at the Beijing Olympics, a forest fire in Spain, and a flood in Vietnam.

Environment Photos Weekly: Subs, Salmon, Storms, More

Publication: National Geographic News   Date: August 4, 2008   View Article

Captions for photos of environmental issues and events in the news. Shots include a Russian sub headed for the depths of Lake Baikal, a fire in Antalya, Turkey, sockeye salmon swimming home in the Columbia River, Typhoon Fung Wong in China, and sunscreen sprayed walnuts.

Sea Lice From Fish Farms May Wipe Out Wild Salmon

Publication: National Geographic News   Date: December 13, 2007   View Article

Four years from now wild pink salmon may vanish from Canada’s Broughton Archipelago, a new study warns.

The killers, according to the research, are sea lice from fish farms.

Lice From Fish Farms Killing Wild Salmon

Publication: National Geographic News   Date: October 2, 2006   View Article

Clouds of sea lice billowing from fish farms infect and kill up to 95 percent of the wild juvenile salmon that swim past the farms on the way out to sea, according to a new study.

The finding is further evidence that aquaculture—the practice of raising fish in underwater cages or nets or in tanks—is dangerous to wild fish populations, according to the researchers.

“Critical Habitat” for Orcas Leaves Pockets of Vulnerability, Critics Say

Publication: National Geographic News   Date: August 7, 2006   View Article

This June a U.S. federal agency proposed that a vast swath of Washington State’s Puget Sound region be granted federal protections to ensure the survival of an iconic killer whale population.

But area residents Tom and Margo Wyckoff, retired healthcare workers, were shocked to learn that Hood Canal, a barb-shaped fjord that slices a narrow path into the Olympic Peninsula, was excluded from the ruling.

© 2008-2010 Collected Writings By John Roach