The Zn, Cu, As, Cd, Hg and Pb levels of the popular species (Silurus triostegus, Acanthobrama marmid, Aspius vorax, Capoeta trutta, Carasobarbus luteus, Chalcalburnus mossulens and Cyprinus carpio) of Ataturk Dam Lake (Euphrates, Turkey) were studied to estimate the risk of human consumption and pollution of Euphrates River which is important for Turkey, Syria and Iraq. Trace metal amounts diff...

At least 17 carnivoran taxa occur in the Pliocene Glenns Ferry Formation at Hagerman Fossil Beds National Monument (HAFO), Idaho. This assemblage was examined for stratigraphic changes in species distribution, specimen abundance, and species diversity. Three relatively common mustelids, Trigonictis cookii, Trigonictis macrodon, and Mustela rexroadensis, occur at most stratigraphic levels, but a...

In order to contribute to an understanding of the geographic distribution of free-living freshwater flagellates, we have investigated the diversity of heterotrophic flagellates occurring in a number of freshwater sites in Tasmania (Australia). This community of organisms has not previously been studied in Tasmania, and the isolation of the freshwater habitats from like habitats elsewhere in the...

Using 11 new SSU-rDNA sequences, we analyze relationships within the class Colpodea, especially of some uncommon taxa, such as Kalometopia duplicata, Cyrtolophosis minor, and Jaroschia sumptuosa. The sequences do not change the basic structure of the molecular Colpodea tree, i.e., all belong to one of the four molecular clades recognized by Foissner et al. (2011): Colpodida, Cyrtolophosidida, B...

Abstract Among nudibranch molluscs, the family Tritoniidae gathers taxa with an uncertain phylogenetic position, such as some species of genus Tritonia Cuvier, 1798. Currently, 37 valid belong to this and only three them are found in Southern Ocean, namely T. challengeriana Bergh, 1884, dantarti Ballesteros & Avila, 2006, vorax (Odhner, 1926). In study, we shed light on long-term discussed ...