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4.913  Articles
Invasive alien species are widespread in freshwater systems compared to terrestrial ecosystems. Among crustaceans, crayfish in particular have been widely introduced and are considered a major threat to freshwater ecosystem functioning. New emerging techn... see more

Non-indigenous species are a significant threat to freshwater biodiversity. In the Potomac Basin there are several known invasive crayfish species including F. virilis (virile crayfish) and F.rusticus (rusty crayfish). It is imperative to discover whether... see more

An investigation is currently underway to reassess the crayfishes of the Lake Erie basin in northwestern Pennsylvania. A total of 54 stream sites were sampled, with a majority of the streams in the basin sampled at least once. Preliminary data have reveal... see more

AbstractThe redclaw crayfish Cherax quadricarinatus (von Martens, 1868), a robust freshwater crayfish native to Australia and Papua New Guinea, has now been recorded from the Kruger National Park (KNP). Previously absent from the Crocodile River, SAN Park... see more

In this study, determination of the morphometric parameters and egg fecundity freshwater crayfish (Astacus leptodactylus Eschscholtz, 1823), measurement and comparing of were aimed in Tatli and Gici Lakes from Bafra Fish Lakes in Samsun, Turkey. The resea... see more

Crayfish are the third most imperiled organism in the United States and reach their peak global endemism in the Appalachians mountains. Crayfish are not only vital ecosystem engineers, but also keystone species that hold aquatic communities together. Desp... see more

Cambarus callainus (Big Sandy Crayfish) is a federally threatened species endemic to the coalfields of Kentucky, Virginia, and West Virginia.  Existing datasets involving this species reflect broad/seasonal natural history trends, but conservation ma... see more

Cambarus veteranus and Cambarus callainus are two closely related crayfish federally protected under the Endangered Species Act. While government protection provides vital funding for research and management initiatives, it is rare for the average citizen... see more

The purpose of this study was to identify and morphologically characterize the hemocyte cell types of freshwater crayfish, Cherax cainii. In addition to morphological observations using a light microscope (LM) and electron transmission microscope (TEM), a... see more

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