Results 151 to 160 of about 291,031 (231)

Colour patterns in Ceylonese freshwater crabs (Potamonidae)

open access: yes, 1970
In the present paper some preliminary remarks are made on the colour patterns of all the Potamonidae of Sri Lanka. In the opinion of the author more detailed studies will show that the colour pattern of each species is a useful diagnostic aid even with difficult species like those belonging to the "Ceylonensis" complex (Fernando, 1960). Fernando (1960,
openaire   +3 more sources

Insular species of Afrotropical freshwater crabs (Crustacea: Decapoda: Brachyura: Potamonautidae and Potamidae) with special reference to Madagascar and the Seychelles

open access: yes, 2008
The evolutionary relationships between island and mainland faunas of the 24 species of insular freshwater crabs in the Afrotropical region are reviewed in the light of phylogenetic studies. Twenty insular species of freshwater crabs are endemic, and four
Cumberlidge, N.
core  

Distribution of Freshwater Crab (Potamon Sp.) in Turkish Thrace

open access: yes, 2016
Potamon fluviatile (Herbst, 1785) is one of four freshwater crab species (all Potamon species) found in the Balkan Peninsula. Another species, P. ibericum, was found in both Marica River in Bulgaria and in MeriƧ River in Turkey. During intensive research between the years 1999-2008, eighteen streams and four lakes were checked for the presence of ...
openaire   +2 more sources

UV radiation and freshwater zooplankton: damage, protection and recovery

open access: yes, 2010
While many laboratory and field studies show that zooplankton are negatively affected when exposed to high intensities of ultraviolet radiation (UVR), most studies also indicate that zooplankton are well adapted to cope with large variations in their UVR
Milla Rautio, Barbara Tartarotti
core  

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