Based on comprehensive measurements of plankton abundance and production, quantitative carbon flow diagrams were established for the pelagic community of a large lake (1... Constance) for ten successive time intervals during the seasonal course of 1987. Using reasonable diet compositions and parameters (e.g. trophic transfer efficiencies in the range of 10-35%), mass-balance conditions could be...

Ciliates (protozoa) are ubiquitous components of plankton community and play important roles in aquatic ecosystems in regards of their abundance, biomass, diversity and energy turnover. Based on the stratified samples collected from the northern Beibu Gulf in August 2011, species composition, abundance, biomass, diversity and spatial pattern of planktonic ciliates were studied. Furthermore the ...

 Phytoplankton growth and microzooplankton grazing were investigated at one station in the Homa Lagoon from February to January in 2006-2007. Our results showed significant seasonal variations in phytoplankton dynamics. Microzooplankton was mainly composed of dinoflagellates and tintinnid ciliates and nauplii. Microzooplankton grazing increased with increasing of temperature. Grazing rate was ma...

Microzooplankton play an important role in aquatic food webs through their multiple interactions with other organisms and impact on carbon export. They are major predators of phytoplankton bacteria while being preyed by higher trophic levels. diversity (Dinoflagellates, DIN Ciliates, CIL), community structure, interaction its potential channeling to levels were studied contrasting productivity ...

Disturbances in the functioning of peatlands, due to growing human impact, climate change and appearance alien invasive species, are becoming increasingly common. Analysis trophic relationships predator (invasive species)–prey system is extremely important for understanding peat pools—small water bodies formed peatlands by extraction. These issues are, as yet, very little understood. The aim th...

Abstract The aim of this study was to evaluate the present state a small (area 0.2 ha), shallow (mean depth 2 m) and approximately 30-year-old post-peat reservoir located in Bruskowskie Bagno, Baltic raised mire northern Poland. conducted during all seasons year (August 2019–July 2020). characterised by yellow brown water colour, low pH (5.4) quite conductivity (40.4 μS cm -1 ), which are main ...

A 1-year baseline survey was conducted in north-western China to evaluate the ecological restoration quality of grain for green (GFG) using soil ciliate communities. The aims this study were focused on analyzing changes communities four plots (A, GFG 15 years; B, 13 C, layland; D, cultivated land) environmental assessment. Simultaneously we studied effects vegetation and physical-chemical varia...

A typical eukaryotic gene is comprised of alternating stretches of regions, exons and introns, retained in and spliced out a mature mRNA, respectively. Although the length of introns may vary substantially among organisms, a large fraction of genes contains short introns in many species. Notably, some Ciliates (Paramecium and Nyctotherus) possess only ultra-short introns, around 25 bp long. In ...

Little is known about the effects of the high dose and types of manganese supplements on rumen environment at manganese intake level close above the limit of 150 mg/kg of dry feed matter. The effects of high dose of two manganese supplements (organic and inorganic) on rumen microbial ecosystem after four months of treatment of 18 lambs divided into three treatment groups were studied. We examin...