Abstract The release of neodymium (Nd) from particles along continental margins may contribute to losses in the global Nd budget. Changjiang River, which carries a heavy load total suspended matter, empties into East China Sea, and strong particulate–seawater interaction process occurs salinity gradient. In low-salinity region ( S < 2.0), removal dissolved rare earth elements (dREEs) occurs,...

A method for the analysis of 10 perfluorinated compounds (PFCs) in whole fish homogenate is presented and applied to 60 fish samples collected from the Ohio, Missouri, and upper Mississippi Rivers in 2005. Method accuracy ranged between 86 and 125% with limits of quantitation between 0.2 and 10 ng/g wet weight. Intra- and inter-batch precision was generally +/-20%. Perfluorooctane sulfonate (PF...

the geographic location of the elamite terrain which lies in parts of today's khuzestan caused a middle-man-role for this region situated in between water-ways leading to the head of the persian gulf and iranian plateau and mesopotamia. in addition to the fact that this territory, possessing several rivers, was very fertile, the reality that of one of the most important iranian trade-route...

  Various parasite species were found in Carassius carassius including Diplostomum spathaceum, Dactylogyrus sp.,Gyrodactylus sp. Ichthyophthirius multifiliis and Trichodinia sp . They were found in four rivers in West Azerbaijan Province (North-Western Iran) . A total of 207 live Carassius carassius from four rivers including Aras (72) Zariyneh (42) Nazlo (58) and Barandoz (35) were studied. Pa...

Stable nitrogen isotopes were used to assess the effects of wastewater treatment plant (WWTP) upgrades on the utilisation of sewage-N by estuarine biota in Moreton Bay, Australia. We measured delta(15)N of filamentous algae, mangrove leaves and shore crabs at the Brisbane and Logan Rivers before and after scheduled WWTP upgrades, and at two reference rivers where WWTPs had been upgraded >4 year...

A detailed microbiological and parasitological survey of salmonids and indigenous fish in the upper reaches of selected river systems in Natal was undertaken. Fish were collected from the rivers by electro-fishing, from dams by gill netting and from hatcheries along the rivers. A total of 678 fish from 26 different sites along 8 river systems were collected. No parasites could be detected on fi...

Major volcanic eruptions in the central North river systems by dispersing through the sea. However, some Island of New Zealand and, in particular, an eruption dated rivers, that were probably severely affected in their at  186, spread ignimbrite and volcanic ashes (tephra) headwaters, have lower elevation and more distant over a broad area, deposition of which caused major tributaries whose c...

Sampling of whitebait from the migrations in a series of West Coast and Southland rivers (Heaphy, Orowaiti, Buller, Hokitika, Wanganui, Okarito, Mataura) showed that whitebait of the giant kokopu migrate late in the spring, beginning to enter rivers during early November and continuing well through December. Amongst 70 whitebait samples containing nearly 9000 whitebait there were only 231 giant...

A very ’physical’ approach to this phenomenon can be made by making use of the linearity of Stokes equations and symmetries of the system. Here, we preform detailed calculations according to hints from Exercise 2.9 from the textbook [Kim & Karilla]. As the Stokes equations are linear in p and v, the pressure field p(r) can be written as a scalar product of a certain vector field P(r) and the po...

Previous Proposals and Problems Regarding the key question, two main streams of proposals are basically discernible. One stream maintained that both NP1 and NP2 are subject, trying to define various notions of subject: e.g., Yu (1909) called them big and small subject, Yoon (2003, 2007) major and grammatical subject, and Lee (2007) subject [Spec, RefP] and subject [Spec, TP], respectively. The ...