Delta smelt are becoming harder and to find in the San Francisco Estuary. Some of suspects their disappearance invasive fish species that were introduced from other places into These can impact new habitat by eating native originally there. However, it is hard understand what eating. We found we use DNA stomachs figure out they have eaten. caught a common Estuary, called Mississippi silverside,...

The North-east American Rainbow smelt (Osmerus mordax) is composed of two glacial races first identified through the spatial distribution of two distinct mtDNA lineages. Contemporary breeding populations of smelt in the St. Lawrence estuary comprise contrasting mixtures of both lineages, suggesting that the two races came into secondary contact in this estuary. The overall objective of this stu...

Abstract This paper presents observations and analyses on seven slag pieces from two third-millennium cal BC (Late Copper Age/Early Bronze Age) rock shelters in the Trentino, north-eastern Italy: La Vela di Valbusa Riparo Monte Terlago. We review previous work contemporary slags region show that smelting did not follow well-known ‘Timna’, ‘Eibner’ or so-called ‘Chalcolithic’ copper processes. e...

Abstract The biochemical composition of the muscles two fish species, European smelt Osmerus eperlanus and Common (Caspian) kilka Clupeonella cultriventris , that were successively invaded naturalized in Rybinsk Reservoir second half 20th century, differs significantly fatty acid content. sum content (mg/g) eicosapentaenoic (20:5n-3) docosahexaenoic (22:6n-3) polyunsaturated acids muscle tissue...

A new species of abertellid sand dollar, Abertella miskellyi n. sp., is described from the Miocene Camarones Formation of Patagonia, southern Argentina. The new taxon corroborates the existence of the genus in South America, given that Abertella is most common in the southeastern USA and the eastern coast of Central America. It is characterized by a unique basicoronal circle, in which the inter...

Abstract Studies of cultured populations can be invaluable to the conservation imperiled species for which little is known and whose very low abundance in wild preclude studies with robust sample sizes. For example, endangered delta smelt ( Hypomesus transpacificus ), measures developed mitigate population decline are hindered by a lack knowledge regarding spawning behavior. However, availabili...

2.1.Date of QMRF: 10.12.2010 2.2.QMRF author(s) and contact details: [1]Indrek Tulp Molcode Ltd. Turu 2, Tartu, 51014, Estonia [email protected] http://www.molcode.com [2]Tarmo Tamm Molcode Ltd. Turu 2, Tartu, 51014, Estonia [email protected] http://www.molcode.com [3]Gunnar Karelson Molcode Ltd. Turu 2, Tartu, 51014, Estonia [email protected] http://www.molcode.com [4]Dimitar Dobchev Molcod...