crabs

Biologist Discovers What May Be World’s ‘Pickiest?Mates

...a crenulata may check out 100 or more male fiddler crabs and their burrows before finally deciding on a mat...e said in her paper. But female California fiddler crabs are much pickier, she discovered in her study, checking out male suitors and their bachelor pads an ...

Prenatal exposure to marine toxin causes lasting damage

...pecies called Pseudo-nitzschia. When shellfish and crabs ingest the algae, the toxin can become concentrated in their bodies. Humans eating contaminated seafood develop symptoms including vomiting nausea, diarrhea and abdominal cramps. In severe cases, the toxin leads to neurological damage, characterize...

Horseshoe crab decline threatens shorebird species

...s resulting from the largest spawning of horseshoe crabs found on the East Coast of the United States. Re...e crab's popularity as bait used by fishermen, the crabs appear to be in serious decline. At the same time, there has been a great reduction in the total pop...

Exotic crab poised for widespread UK invasion

...major UK estuaries in several years time. Mitten crabs are unwelcome because they prey on protected UK na... late to control the population. Chinese mitten crabs are already present in some of our waterways, including the Thames, Humber and Tyne rivers and parts...

Life, the remake

... although they are actually crustaceans related to crabs and lobsters. As adults, they have evolved a lifestyle similar to that of clams, mussels and another entire group of animals, the brachiopods. Vermeij reviewed 23 evolutionary innovations thought to be unique, including the genetic code, sex, human ...

Marine 'dead zone' off Oregon is spreading

...tuary indicate. There have been reports of dead crabs stretching from the central Oregon coast to the ce... in the central Washington coast reported all dead crabs in pots at depths of about 45-90 feet, north of the Moclips River. Large numbers of dead Dungeness c...

How healthy is that marsh? Biologists count parasites

...rtain hosts to complete their lifecycle. Snails to crabs to birds might be a typical sequence for one species, snails to fish to birds for another. These trematodes also stand apart from other parasites in that they cause negligible disease for their highest trophic level hosts, usually birds. The worms' l...

Even a little cooling helps after cardiac arrest

...rtain hosts to complete their lifecycle. Snails to crabs to birds might be a typical sequence for one species, snails to fish to birds for another. These trematodes also stand apart from other parasites in that they cause negligible disease for their highest trophic level hosts, usually birds. The worms' l...

Mussels evolve quickly to defend against invasive crabs

...portant development in the arms race between these crabs and these mollusks." Crabs prey on blue mussels by...land, the scientists say, mussels are prey to many crabs as well as other marine species. "When Hemigrapsus came along the mussels' wheels were well-greased ...

Ocean temperature predicts spread of marine species

...ncluding cod, herring, American lobster, horseshoe crabs and clams, O'Connor and her colleagues developed a model that predicts how far larvae travel at a certain temperature. The predictions appear to hold for virtually all marine animals with a larval life cycle. "We can apply this rule to animals wi...

Microbes compete with animals for food by making it stink

...If microbes could produce chemicals that prevented crabs or fishes from using these resources, then those m...ause of texture, they fed stone crabs, lesser blue crabs and striped hermit crabs noodle-like test foods made from pureed forms of either the freshly thawed ...

Smithsonian scientists discover new marine species in eastern Pacific

...s of sand to 6-foot-long specimens that eat entire crabs and sea hares. During the expedition, Nor... determine the relationships among all families of crabs and shrimps. Even soft corals, a relatively well-studied group, yielded 15 new species over 3 years...