The global invasion routes of the red swamp crayfish

Spanish National Research Council (CSIC) researchers have reconstructed the invasion routes followed by the red swamp crayfish during its human-driven expansion based on the analysis of a mitochondrial gene (COI), which was ...

Invasive crayfish sabotages its own success, study says

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 ...

A clonal crayfish from nature as a model for tumors

A genome study has proven that all specimen of Marmorkrebs, or marbled crayfish, originate from a single female. About 30 years ago, the original clone evolved in an aquarium. Ever since, the female animals have been able ...

An updated classification for freshwater crayfishes

A new paper published in the Journal of Crustacean Biology provides an updated classification system that includes all the known crayfishes worldwide. This makes available a single, comprehensive taxonomic summary of all ...

Sociable crayfish get drunk more easily than loners

Few studies have investigated how prior social experience affects sensitivity to alcohol, but now a study from the University of Maryland shows that sociable crayfish are more sensitive than loners and suggests that similar ...

Environmental DNA provides early detection of invasive crayfish

Every plant and animal has a unique genetic composition, which makes a lake like a bowl of DNA soup—every spoonful contains the combined DNA of the lake's inhabitants. Scientists have only recently begun using this environmental ...

A 100-million-year partnership on the brink of extinction

A relationship that has lasted for 100 million years is at serious risk of ending, due to the effects of environmental and climate change. A species of spiny crayfish native to Australia and the tiny flatworms that depend ...

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