In the Tver region 31 wader species were recorded and of these, 19 species breed there, 11 species are considered rare and ten of these rare species breed in different peatlands. Golden Plover Pluvialis apricaria and Whimbrel Numenius phaeopus breed only on raised bogs, Marsh Sandpiper Tringa stagnatilis and Great Snipe Gallinago media breed only on fens. Ruff Philomachus pugnax, Redshank Tring...

Bioassay and gene expression experiments were conducted in order to evaluate the growth and physiology of Prorocentrum minimum isolated from a eutrophic coastal water in response to tannic acid. In the bioassay experiments, variations in abundance, chlorophyll (chl) a concentration, maximum fluorescence (in vivo Fm), and photosynthetic efficiency (Fv/Fm) were measured over the course of a seven...

The high nutrient concentrations coming from non-point and point pollution have been linked to algae blooms, especially in hydroelectric plant reservoirs, due to higher residence time compared to rivers. The monitoring of algae is important to prevent risk of contamination by toxins in reservoirs used for drinking water supply. In this context, a physical model-based approach was adopted to ret...

In order to better understand Cu behaviour in the submontane, eutrophic Dobczyce dam Reservoir (southern Poland), speciation measurements of Cu in the water and the sediment were conducted. To investigate the partitioning of Cu in the main components of the sediment, a scheme of VI-step sequential extraction was used. In addition, other physical and chemical parameters of the water, such as tem...

Abstract Planktonic foraminifera were studied at Lydden Spout, near Folkestone (southeast England, UK), the reference section of middle Cenomanian Event 1 (MCE 1) characterized by a prominent double-peak ? 13 C excursion ‰ identified in different ocean basins and considered global event. Biostratigraphic quantitative analysis planktonic are correlated to perturbation, positive 18 O shifts withi...

Small eukaryotes, cells with a diameter of less than 5 mum, are fundamental components of lacustrine planktonic systems. In this study, small-eukaryote diversity was determined by sequencing cloned 18S rRNA genes in three libraries from lakes of differing trophic status in the Massif Central, France: the oligotrophic Lake Godivelle, the oligomesotrophic Lake Pavin, and the eutrophic Lake Aydat....

OBJECTIVE To evaluate the relationship between the stages of somatic maturation and body composition in eutrophic female adolescents with or without excessive body fat. METHODS Cross-sectional study of 118 female adolescents, from 14 to 19 years-old, in Viçosa, Minas Gerais, Southeast Brazil. The adolescents were divided in two groups: Group 1 (G1), eutrophic with adequate body fat percentage...

The intensive multiplication of cyanobacteria which results in the phenomenon «blooming water» is one most complicated and urgent problems many reservoirs. Highly eutrophic water bodies southern regions subject to regular anthropogenic impact are vulnerable position. level manifestation «water bloom» upstream zone Tsimlyanskoye reservoir productive areas open closed coastal zone, as well centra...

Agricultural activities have produced well-documented changes in the Florida Everglades, including establishment of a gradient in phosphorus concentrations in Water Conservation Area 2A (WCA-2A) of the northern Everglades. An effect of increased phosphorus concentrations is increased methanogenesis in the eutrophic regions compared to the oligotrophic regions of WCA-2A. The goal of this study w...

Nutrients, pH, and organic matter were determined in water samples collected from the Raba River above Dobczyce Reservoir (meso-eutrophic), from the Dunajec River above Czorsztyn Reservoir (mesotrophic), and Rożnów Reservoir (eutrophic), and in the bottom sediments of the reservoirs. The river waters were alkaline (pH 7.2–9.2). In the Raba River and Dunajec River, the ranges of nutrients and or...