Aquaculture

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.

Mangroves Are Nurseries for Reef Fish

Publication: National Geographic News   Date: February 4, 2004   View Article

Mangroves—forests of tropical trees and shrubs rooted in saltwater sediments between the coast and the sea—are crucial nurseries for coral reef fish, according to a new study.

The finding highlights the importance of the rapidly dwindling habitats to reef communities.

“Beyond showing they are important, we showed they are much more important than even assumed,” said Peter Mumby, a marine biologist at the University of Exeter, England.

© 2008-2010 Collected Writings By John Roach