This study assesses the quantitative impact of parasitic chytrids on the planktonic food web of two contrasting freshwater lakes during different algal bloom situations. Carbon-based food web models were used to investigate the effects of chytrids during the spring diatom bloom in Lake Pavin (oligo-mesotrophic) and the autumn cyanobacteria bloom in Lake Aydat (eutrophic). Linear inverse modelin...

The cyanoprocaryotes (cyanobacteria) are distributed globally. Their ability to bloom in water is mainly a result of eutrophication of water bodies, the safety of which is connected to the presence of toxin producing algal species (Oliver and Ganf, 2000). Cyanobacteria can produce a broad spectrum of toxins – cyanotoxins EFFECT OF TEMPERATURE AND LIGHT INTENSITY ON THE GROWTH, CHLOROPHYLL A CON...

www.frontiersinecology.org © The Ecological Society of America I 2011, the worst algal bloom in the history of North America’s Lake Erie developed in the western basin of the lake (Stumpf et al. 2012), the result of a combination of agricultural fertilizer runoff, heavy spring rains, and stable summer conditions that favored heavy algal growth (Michalak et al. 2013). Analysis of the dynamics an...

Harmful algal blooms (HABs) are a worldwide problem that have been increasing in frequency and extent over the past several decades. HABs severely damage aquatic ecosystems by destroying benthic habitat, reducing invertebrate and fish populations, and affecting larger species such as dugong that rely on seagrasses for food. Few statistical models for predicting HAB occurrences have been develop...

Brown tide algal blooms, caused by the excessive growth of Aureococcus anophagefferens, recur in several northeastern US coastal bays. Direct bloom control could alleviate the ecological and economic damage associated with bloom outbreak. This paper explored the effectiveness and safety of natural chemical biocide hydrogen peroxide (H(2)O(2)) for brown tide bloom control. Culture studies showed...

Many phytoplankton species form resting stages when environmental conditions are harsh and these can survive for a long time in the sediment (Livingstone and Jaworski, 1980; Lampert, 1995). When environmental conditions are favourable again, they recruit to the water phase and continue growing (Hansson et al., 1994; Hansson, 1996a). Many species of cyanobacteria, for example Microcystis, Anabae...

The interaction between bacteria and phytoplankton during bloom events is complicated throughout the developmental processes of algal blooms. detailed ecological roles bacterioplankton blooms still need to be investigated comprehensively. With assistance omics techniques, composition function were studied blooming recession periods Phaeocystis globosa in Beibu Gulf, China. transcriptionally act...

Precise prediction of algal booms is beneficial to fisheries and environmental management since it enables the fish farmers to gain more ample time to take appropriate precautionary measures. Since a variety of existing water quality models involve exogenous input and different assumptions, artificial neural networks have the potential to be a cost-effective solution. However, in order to accom...