Biodiversity

The Atlantic bluefin tuna, one of the wildest of wild fish, is in decline. Paradoxically, aquaculture scientists say a recent breakthrough in captive breeding of the fish may help save it.

"The world should safeguard coral reefs with networks of small no-fishing zones to confront threats such as climate change, and shift from favoring single, big protected areas, a U.N. study showed."

"Concern for the survival of albatrosses, penguins, and other marine birds has drawn scientists from 40 countries to first World Seabird Conference in Victoria. The five-day event opened Tuesday, sponsored by 26 professional seabird groups and societies from around the world."

"Two Greenpeace activists were given suspended jail sentences in Japan Monday for stealing whale meat they said was going to be consumed illegally."

"A federal judge has ordered the U.S. Fish and Wildlife Service to revise a Bush administration recovery plan for the threatened northern spotted owl, and the agency said today it intends to release a draft of the revision next week."

"U.S. health officials are set to rule on whether a faster-growing, genetically engineered fish is safe to eat in a decision that could deliver the first altered animal food to consumers' dinner plates."

The algae mats floating in a stretch of California's Bear River look pretty disgusting. The "didymo" -- short for its scientific name, Didymosphenia geminata -- looks something like shredded toilet paper. It also resembles another of its nicknames: "rock snot." Its behavior has changed in recent years, and it is spreading. It appears in trout streams and threatens trout. New Zealand has banned felt-soled wading boots (often used by fly fishers), which can spread it.

"Chesapeake oysters are a succulent treat that for centuries have been loved almost to extinction.  But some scientists and business people are making headway in bringing back the bivalve, for the sake of oyster lovers and the bay."

"A British beekeeper said on Wednesday he may have discovered a strain of honey bee immune to a parasite that has been gradually wiping out populations of the vital insect worldwide."

"A federal appeals court panel on Friday ruled that wild steelhead remain an endangered species and rebuffed Central Valley irrigators' efforts to relax federal government protections on the Pacific salmon."