(Phys.org) —A team of researchers working in France has found that when stressed, crayfish tend to exhibit anxiety-like behavior. In their paper published in the journal Science, the team describes how they conducted experiments ...
(Phys.org)—A team of US biologists has found that the chytrid fungus, believed to be responsible for amphibian deaths worldwide, also infects and kills crayfish. In their paper published in the Proceedings of the National ...
Just how hard should natural resource managers fight invasive species after they establish? A new University of Illinois study suggests some invaders—even highly successful ones—can die off naturally, leaving native communities ...
Plants & Animals
Feb 13, 2023
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29
A small, rare crayfish thought to be extinct for 30 years has been rediscovered in a cave in the City of Huntsville in northern Alabama by a team led by an assistant professor at The University of Alabama in Huntsville (UAH).
Plants & Animals
Jun 2, 2022
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236
In a study of crayfish in the Current River in southeastern Missouri, researchers discovered—almost by chance—that the virile crayfish, Faxonius virilis, was interbreeding with a native crayfish, potentially altering ...
Ecology
Oct 8, 2021
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120
In many North American lakes, a tiny clawed creature has become a big bully. The invasive rusty crayfish roams lakebeds, snapping up snails, bivalves, and water plants, cutting off food supplies for native crayfish and other ...
Plants & Animals
Sep 27, 2021
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49
Antidepressants can help humans emerge from the darkness of depression. Expose crayfish to antidepressants, and they too become more outgoing—but that might not be such a positive thing for these freshwater crustaceans, ...
Ecology
Jun 15, 2021
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22
Despite being championed by a host of celebrity chefs, crayfish 'trapping' is not helping to control invasive American signal crayfish, according to new research by UCL and King's College London.
Ecology
Oct 13, 2020
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150
Since they were first released as live bait in the mid-twentieth century, rusty crayfish have roamed lake bottoms in northern Wisconsin, gobbling native fish eggs, destroying aquatic plants, and generally wreaking havoc on ...
Ecology
Mar 28, 2019
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56
Invasive red swamp crayfish are a serious problem in the Santa Monica Mountains and other parts of Southern California. They devastate native wildlife, including threatened species such as the California red-legged frog, ...
Ecology
Aug 7, 2018
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Crayfish, crawfish, or crawdads – members of the superfamilies Astacoidea and Parastacoidea – are freshwater crustaceans resembling small lobsters, to which they are related. They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom; they are also mostly found in brooks and streams where there is fresh water running, and which have shelter against predators. Most crayfish cannot tolerate polluted water, although some species such as the invasive Procambarus clarkii are more hardy. Crayfish feed on living and dead animals and plants.
In Australia, New Zealand and South Africa, the term crayfish or cray generally refers to a saltwater spiny lobster, of the genus Jasus that is indigenous to much of southern Oceania, while the freshwater species are usually called yabby or koura, from the indigenous Australian and Māori names for the animal respectively, or by other names specific to each species. An exception is the freshwater Murray crayfish, which belongs to the family Parastacidae and is found on Australia's Murray River.
The study of crayfish is called astacology.
This text uses material from Wikipedia, licensed under CC BY-SA
