Ebonyi River basin of south east Nigeria is home to the freshwater crab Potamon ebonyicum, which are consumed indiscriminately by inhabitants and tourists. Bulk of the crab meat is obtained by crabbing. A preliminary survey of pathogenic bacteria associated with vulnerable morphological part of the crab species was carried out in the basin. Bacteria were isolated from abdominal flaps of the mal...

guilan province is located in south and south-west of the caspian sea. guilan is one of the richest and the most humid region in the country due to suitable climate, ample rainfall and many water sources (springs, rivers, creeks,..),. despite the prevailing favorable conditions, limnological studies, especially in the mountainous regions of this province are limited. a limnological study was co...

Freshwater crab sister group relationships with marine eubrachyuran families were investigated[ A morphology!based cladistic analysis was conducted on representatives of the freshwater crab families Deckeniidae\ Gecarcinucidae\ Parathelphusidae\ Potamidae\ Potamonautidae\ Pseudothelphusidae\ and Trichodactylidae using a disparate assemblage of marine heterotreme and thoracotreme brachyurans as ...

Morphometric characters are important to estimate the population of crustacean species. In the present study, relationships between various morphometric characters of the freshwater crab Sodhiana iranica was studied at Eelood freshwater spring of southern Iran. Crabs were collected randomly from April 2012 to April 2013 bimonthly. A total of 69 (43.67%) females and 89 (56.32%) males were col...

We use sequence data derived from six DNA gene loci to examine evolutionary and biogeographic affinities among all freshwater crab families. With an emphasis on the Afrotropical fauna that includes Africa, Madagascar, and the Seychelles, we test the proposed Gondwanan cladogenesis of the group. Phylogenetic results demonstrate that contemporary distribution patterns of freshwater crab lineages ...

A large number of recently collected specimens from Puerto Rico has yielded two new species including Palaeoxanthopsis tylotus and Eurytium granulosum, the oldest known occurrence of the latter genus. Cretaceous decapods are reported from Puerto Rico for the first time, and the Cretaceous fauna is similar to that of southern Mexico. Herein is included the first report of Pleistocene decapods fr...

An updated checklist of the freshwater decapod species of Puerto Rico is presented based on records of shrimp and crab species whose presence has been confirmed in Puerto Rico as a result of extensive field collections, examination of carcinological collections, literature review, and personal communications from researchers. The freshwater decapods fauna of Puerto Rico consists of 18 species o...

In the present study, effort has been made to find the antimicrobial activity of haemolymph collected from freshwater crab, Paratelphusa hydrodromous. The haemolymph collected was tested for antimicrobial assay by disc diffusion method against clinical pathogens. Five bacterial species, namely, Escherichia coli, Klebsiella pneumonia, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus aur...

Crabs—those sometimes pesky, hard-shelled beachcombers—are a highly diverse animal, with some 7,000 species found in oceans, lakes, and on land, varying in size from the diminutive pea crab (millimeters) to the giant 4-m wide Japanese spider crab. Tsang et al. (2014) have constructed the most complete and extensive data set to date. Their recalibrated crab gene tree using DNA and mitochondrial ...

Ancient lakes are among the most stable freshwater environments on our planet, with a species richness far exceeding that of younger and less stable limnic habitats. Compared with the African rift lakes, the ancient lakes of the Indonesian island Sulawesi have received less attention, and their fauna has not been satisfactorily explored. Here, we present results on the freshwater crabs from the...