Results 241 to 250 of about 330,141 (302)

Cytopathological and ultrastructural changes in the male reproductive organs of freshwater crab Paratelphusa jacquemontii (Rathbun) exposed to nurocombi

Microscopy research and technique (Print), 2021
Accumulation of pollutants in the aquatic system has a high impact on the reproductive physiology of crustaceans. The objective of the present study was to assess the possible histopathological effects of combined chlorpyrifos and cypermethrin (nurocombi)
Shanmuganathan Archunan, Maharajan Athisuyambulingam, Kumara Perumal Pradhoshini, Narayanaswamy Yelappu, Ganapiriya Viswambaran, Muthukumaravel Kannayiram, Marckasagayam Priyadharshini, M. Musthafa, C. Faggio   +8 more
semanticscholar   +1 more source

Evolution of Afrotropical freshwater crab lineages obscured by morphological convergence

Molecular Phylogenetics and Evolution, 2006
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 ...
Savel R Daniels, , Marcos Pérez-Losada
exaly   +2 more sources

Metal binding characterization of heterologously expressed metallothionein of the freshwater crab Sinopotamon henanense.

Chemosphere, 2019
We characterized the metal tolerance of recombinant strains harboring metallothionein from the freshwater crab Sinopotamon henanense (ShMT) in vivo and metal binding properties of ShMT purified in vitro.
H. Yang, Wen J Gu, Wei Chen, Jiang‐Shiou Hwang, Lan Wang   +4 more
semanticscholar   +1 more source

Atlantic blue crab Callinectes sapidus Rathbun, 1896 (Portunidae, Malacostraca) could lead to local extinction of few endemic freshwater species in the Eastern Morocco

Povolzhskiy Journal of Ecology
The protected area of the Moulouya River mouth, also known as a SIBE (Site of Biological and Ecological Interest), is one of the most important and vulnerable freshwater reserves in the southern Mediterranean. This site is characterized by a wide variety
Y. Mabrouki, K. Gourari, A. Taybi
semanticscholar   +1 more source

A new genus for the freshwater crab Potamonemus asylos Cumberlidge, 1993, (Brachyura: Potamoidea: Potamonautidae) from Cameroon, Central Africa, with a key to the genera of the Potamonautinae

Journal of Natural History, 2019
Buea gen. nov. is established to accommodate the freshwater crab Potamonemus asylos, from south-western Cameroon, Central Africa. This new genus is defined based on molecular evidence combined with morphological characters of the mandible and the first ...
N. Cumberlidge, P. A. M. Ndongo, P. Clark, S. Daniels   +3 more
semanticscholar   +1 more source

The freshwater Grapsid crabs of Jamaica

Proceedings of the Linnean Society of London, 1964
SUMMARY. Four species of grapsid crabs, endemic to Jamaica, spend the whole of their life cycle in fresh water; an account of their biology is given. Metopulias depressus is confined to the water which collects at the base of large tank bromeliads, and is limited to limestone regions above an elevation of about a 1000 ft.
openaire   +1 more source

Phylogenomic analyses of brachyuran crabs support early divergence of primary freshwater crabs

Molecular Phylogenetics and Evolution, 2019
Recent fossil calibrated molecular phylogenies have revealed that the Brachyura underwent rapid radiation during the Cretaceous and Early Tertiary, resulting in many early diverging lineages separated by short internodes that remain difficult to resolve.
Ka Yan Ma, Jing Qin, Chia-Wei Lin, Tin-Yam Chan, Peter K.L. Ng, Ka Hou Chu, Ling Ming Tsang   +6 more
openaire   +2 more sources

Sublethal effects of copper on the freshwater crab Potamonautes warreni

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2002
The mass specific rates of oxygen consumption (M (O(2)) M(b)(-1)), ammonia excretion (M (NH(4)-N) M(b)(-1)) and carbon dioxide production (M (CO(2)) M(b)(-1)) were measured after 7, 14 and 21 days exposure of adult Potamonautes warreni to a sublethal concentration of 1.0 mg Cu l(-1) (15.75 micromol l(-1)).
A, Vosloo, W J, van Aardt, L J, Mienie
openaire   +2 more sources

Freshwater Crabs and Prawns of Singapore

1990
Essays in zoology : papers commemorating the 40th anniversary of the Department of Zoology, National University of ...
openaire   +1 more source

Studies on the locomotor activity of the freshwater crab, Potamon fluviatile

Hydrobiologia, 1988
Locomotor activity in the freshwater crab, Potamon fluviatile, was studied both in the field, by direct counts of animals along a stream section, and by means of actographs. General metabolism was evaluated through the analysis of oxygen consumption.
GHERARDI, FRANCESCA, G. MESSANA, UGOLINI, ALBERTO, VANNINI, MARCO   +3 more
openaire   +2 more sources