Search Results for: aquatic ecology
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200 results
- Ecosystems
Dam demolition lets the Elwha River run free
Removing a dam involves more than impressive explosions. Releasing a river like Washington state's Elwha transforms the landscape and restores important pathways for native fish.
- Paleontology
3-D scans reveal secrets of extinct creatures
Paleontologists can dig into fossils without destroying them and see what’s inside using 3-D scanning. What they’re learning helps bring the past to life.
- Life
Antianxiety drugs affect fish, too
Perch swim more and eat faster when exposed to concentrations of an antianxiety medication found in rivers.
- Humans
Numbers warn of looming collapses
Mathematical tools help researchers predict when systems are about to change dramatically.
- Ecosystems
No ‘dead zone’ from BP oil
As aquatic microbes dine, they consume oxygen. When too many congregate at some temporary smorgasbord of goodies, they can use up so much oxygen that a so-called dead zone develops — water with too little oxygen to sustain fish, mammals or shellfish. On Sept. 7, federal scientists reported that despite the massive release of oil from the damaged BP well in the Gulf of Mexico, no such dead zone developed.
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- Life
Ocean acidification may make fish foolhardy
Rising carbon dioxide alters fish larvae’s sense of smell, which they use to avoid predators and find their way home.
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Dawn of the Dinosaurs
Paleontologists probe the majestic reptiles’ origin and rise.
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- Earth
Feds propose banning giant snakes
Today, the U.S. Fish & Wildlife Service announced plans to ban the importation and interstate transport of nine species of giant snakes. It’s a good idea, but a little like closing the barn door after the horse — or in this case, the pythons and anacondas — got loose.
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Botanical Whales
Adventures in the Tortugas reveal that seagrass fields need saving too.
- Animals
Megafish Sleuth: No Steve Irwin
There's no reason a scientist can't be an action hero — even if his damsels in distress have fins.
