Increased sedimentation in the marine environment has been described as a key factor in the degradation of coral reefs. One of the most important biological components of coral reefs is macroalgae. The objective of this study was to determine whether the effects of terrigenous sediments on macroalgae affect the current state of the coral reef ecosy...
Published in Frontiers in Marine Science
The effects of seagrass on microalgal assemblages under experimentally elevated temperatures (28°C) and CO2 partial pressures (pCO2; 800 μatm) were examined using coral reef mesocosms. Concentrations of nitrate, ammonium, and benthic microalgal chlorophyll a (chl-a) were significantly higher in seagrass mesocosms, whereas phytoplankton chl-a concen...
Published in Oceanology
AbstractThe multidisciplinary expedition “European Arctic-2020” on board the R/V Akademik Mstislav Keldysh took place from July 31 to August 26, 2020. The investigations were carried out in the Norwegian Sea on the Mohns Mid-Oceanic Ridge (including the hydrothermal activity zone near Jan Mayen), near gas seeps in the Storfjord Trough, on the polar...
Societies are facing great challenges with obtaining a good quality and quantity of drinking water in the context of climate change. Increases in natural organic matter (NOM) and per- and polyfluoroalkyl substances (PFAS) have been observed in lakes and drinking water the past years, which is of great concern for water treatment plants in Sweden. I...
Inom Rååns avrinningsområde, som är beläget i kommunerna Helsingborg, Landskrona, Svalöv och Bjuv, har anläggning av våtmarker pågått sedan 1990-talet. De anlagda våtmarkerna syftar till att minska näringsförlusterna från omkringliggande jordbruksmarker till vattendrag och gynna den biologiska mångfalden. I denna studie har 28 anlagd...
Published in Moscow University Geology Bulletin
AbstractIt has been revealed that the modern sedimentation on the Laptev Sea shallows, which have been solely affected by erosion in the past, has intensified. This occurs against the background of a rise in sea level. The activation of the modern sedimentation is caused primarily by factors related to climate warming: a decrease in sea ice extent,...
Published in Oceanology
AbstractOn cruise 76 in 2019, the R/V Akademik Mstislav Keldysh completed the Gulf of Ob–Kara Sea slope transect. Samples of bottom water and two sediment layers 1 cm thick were obtained with a multicorer. The silicon, mineral and total phosphorus, and organic nitrogen concentrations were measured in them. The magnitude of fluxes of these nutrients...
Published in Mathematical Models in Engineering
Inlet flow distribution devices play an important role in providing uniform flow distribution in water treatment process units such as sedimentation tanks. Orifices and weirs are commonly provided along the inlet flow channels that are built across the width of sedimentation tanks. This paper presents a numerical method and computer program for com...
Published in Frontiers in Bioengineering and Biotechnology
Bacterial and algal floc formation was induced by inoculating three species of wastewater-derived bacteria (Melaminivora jejuensis, Comamonas flocculans, and Escherichia coli) into algal cultures (Chlorella sorokiniana). Bacterial and algal flocs formed in algal cultures inoculated with M. jejuensis and C. flocculans, and these flocs showed higher ...
