8,293 results
8,293 results for: Fish
- Ecosystems
Top-Down Lowdown: Predators shape coastal ecosystem
The health of southern California kelp forests may depend more on the ecosystem's predator population than the forest's access to nutrients.
- Animals
Lobster Hygiene: Healthy animals quick to spot another’s ills
Caribbean spiny lobsters will avoid sharing a den with another lobster that's coming down with a viral disease.
- Earth
Oil Booms: Whales don’t avoid noise of seismic exploration
Field tests in the Gulf of Mexico suggest that sperm whales there don't swim away from boats conducting seismic surveys of the seafloor, but the noise generated by such activity may be subtly affecting the whales' feeding behavior. With video.
- Earth
Something’s fishy about these hormones
Synthetic steroids used to beef up cattle can impair reproduction in female fish and even give them macho physical traits.
- Animals
Fishy Reputations: Undersea watchers choose helpers that do good jobs
Coral reef fish use smart-shopper techniques of looking for satisfied customers before choosing a small fish to provide cleaning services.
- Ecosystems
A Chronicle of Coasts: Study charts historical changes in seas, estuaries
New research compares the long-term ecological impact of human activities in estuaries and coastal seas on three continents.
- Earth
Toxic Leftovers: Microbes convert flame retardant
Bacteria can break down a common flame retardant into more-toxic forms.
- Earth
Alaskan coral beds get new protection
To protect cold-water corals, huge areas of Alaskan waters will be off limits to trawls and other fishing gear that typically scrape the seafloor.
- Earth
Macho Moms: Perchlorate pollutant masculinizes fish
Perchlorate, a compound best known as a component of rocket fuel, can disrupt sexual development in fish.
- Ecosystems
Fish as Farmers: Reef residents tend an algal crop
A damselfish cultivates underwater gardens of an algal species that researchers haven't found growing on its own.
- Earth
Grand Canyon fish seem to be rebounding
The population of humpback chub, an endangered fish found only in the Colorado River and its tributaries, may be stabilizing in some sections of the Grand Canyon.
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Is a Galápagos finch caught in a split?
An inland population of one of the famed Galápagos finches may become a new textbook example of the way in which two species emerge from one while still living together.
