An experiment was conducted with a natural freshwater phytoplankton community from a eutrophic pond to investigate the combined effects of phytoplankton community competitive interactions, nutrient enrichment and zooplankton on Microcystis bloom formation. The pond water initially had a very low concentration of Microcystis, but the total phytoplankton biomass as chlorophyll a reached 110 mg L ...

Diatoms and dinoflagellates are major bloomforming phytoplankton groups competing for resources in the oceans and coastal seas. Recent evidence suggests that their competition is significantly affected by climatic factors under ongoing change, modifying especially the conditions for cold-water, spring bloom communities in temperate and Arctic regions. We investigated the effects of phytoplankto...

Nutrient enrichment in water and sediments due to excessive anthropogenic activities in recent years has caused excessive algal growth in the Caspian Sea. The current study was conducted to determine the abundance of phytoplankton community, the dominant species and chlorophyll-a [Chl-a] concentration during algal blooms in the Iranian coastal waters of Caspian Sea through four seasons from 201...

Parasitic dinoflagellates of the genus Amoebophrya infect free-living dinoflagellates, some of which can cause harmful algal blooms (HABs). High prevalence of Amoebophrya spp. has been linked to the decline of some HABs in marine systems. The objective of this study was to evaluate the impact of Amoebophrya spp. on the dynamics of dinoflagellate blooms in Salt Pond (MA, USA), particularly the h...

The future bloom and risk of blossom frosts for Malus domestica were projected using regional climate realizations and phenological ( = impact) models. As climate impact projections are susceptible to uncertainties of climate and impact models and model concatenation, the significant horizon of the climate impact signal was analyzed by applying 7 impact models, including two new developments, o...

We investigated the combined effect of reduced phosphorus supply and warmer winter and spring conditions on the diatom spring bloom of a shallow lake. Simulations with a simple dynamic model indicated that reduced ice cover and increasing water temperatures resulted in a more intense and earlier bloom independently of phosphorous concentrations. However, whereas the collapse of the bloom was ca...

Abstract. The oxidation of dimethyl sulfide (DMS; CH3SCH3), emitted from the surface ocean, contributes to formation Aitken mode particles and their growth cloud condensation nuclei (CCN) sizes in remote marine environments. It is not clear whether other less commonly measured marine-derived, sulfur-containing gases share similar dynamics DMS contribute secondary aerosol formation. Here, we pre...

Se cumplen ocho años desde que iniciamos nuestra etapa como Comité Editorial de Enfermería Clínica y aunque en aquel momento no nos establecimos un plazo de finalización, pensamos que todo proyecto profesional tiene una fecha de caducidad y que la nuestra ha llegado ya. Hemos dedicadomucho tiempo y esfuerzo a este apasionante y a veces difícil proyecto editorial, siendo conscientes de que era u...

To analyze the interrelated dynamics of microalgae and algicidal bacteria (i.e. bacteria that kill and utilize microalgal cells) in a seawater environment, we investigated particle-associated and free-living algicidal bacteria during a diatom bloom in the Seto Inland Sea (Japan) in the summer of 2005. A conventional most probable number (MPN) protocol revealed that bacteria that are algicidal a...