Spatial and temporal patterns of plankton ciliates species composition in the Paraná River floodplain were investigated. Samplings were carried out in twelve environments in two distinct hydrological periods (limnophase and potamophase). A total of 61 species of ciliates were recorded, and among them 21 are classified as pelagic while 40 are considered preferentially as littoral species. The re...

Three new fortuyniid species, Fortuynia longiseta sp. nov., F. maledivensis sp. nov. and Alismobates pseudoreticulatus sp. nov., were found in littoral environments of the Maldives and Singapore and are described based on adult and juvenile morphology. A key is given to all Alismobates and Fortuynia species. The genus Fortuynia shows a homogeneous morphology and this is supposed to be a result ...

16 Introduction 17 Materials and Methods 19 Results 22 Discussion 27 Acknowledgements 32 Annexure 1 33 3 Seasonal fluctuations of epilithic diatoms and extracellular polymeric substances from the littoral zone of Lake Constance 40 Abstract 4

Arctic char (Salvelinus alpinus) is a top predator and the most widespread fish in lakes. The presence of affects predator–prey dynamics key species food webs these This study sought to elucidate effects habitat (littoral, pelagic, or profundal) lake morphometry on trophic position this web. Using stomach content stable isotope analyses, we investigated effect length, habitat, time (individual ...

Potter, K. N., Williams, J. R., Larney, F. J. and Bullock, M. S. 1998. Evaluation of EPIC’s wind erosion submodel using data from southern Alberta. Can. J. Soil Sci. 78: 485–492. Wind erosion models have been used to assess policy impacts on soil erosion, but validation of models has been difficult until recently. We evaluated the Environmental Policy Integrated Climate (EPIC) wind erosion subm...

background: irritable bowel syndrome (ibs) is one of the most prevalent gastrointestinal disorders, characterized by non-specific symptoms such as abdominal pain and altered bowel habit without any organic pathology. its prevalence varies in human communities. we performed this study to determine the prevalence of ibs in medical students of gilan university of medical sciences (gums). materials...

The black soil region of Northeast China has suffered from severe soil erosion by water. Hillslope and gully erosion are the main erosion types. The objective of this research was to integrate the assessment of hillslope and gully erosion and explore spatial coupling relations between them in the Mushi River sub-catchment using geographical conditions monitoring (GCM) including remote sensing (...

Le projet Adapto a pour objet d’expérimenter diverses méthodes de gestion souple du trait côte sur dix sites pilotes Conservatoire littoral. Un des axes consiste à interroger, site, les perceptions et avis usagers habitants leurs ressentis leur compréhension choix gestion, réalisés ou envisagés l’avenir. De l’échelle globale changement climatique locale d’un enjeu spécifique littoral, ont répon...

for the past quarter of a century iran has advocated the setting up of a security regime in the persian gulf by littoral states that excludes foreign powers. this paper examines the reasons behind iran's opposition to foreign participation in persian gulf security arrangements; the steps iran has taken to gain the support of other littoral states for its scheme, and the prospects for iran&...