After the major reasons of water bloom were analyzed, using the rough set theory and principal component analysis respectively to identify the main factors affecting the forecast algal blooms. On this basis, to take advantage of the Libsvm water bloom prediction model and Elman water bloom prediction model for the shortterm prediction of algal blooms phenomenon respectively. Obtained through th...

Nutrient and light conditions control phytoplankton division rates in the surface ocean and, it is commonly believed, dictate when and where high concentrations, or blooms, of plankton occur. Yet after a century of investigation, rates of phytoplankton biomass accumulation show no correlation with cell division rates. Consequently, factors controlling plankton blooms remain highly controversial...

Ciliates from the genus Mesodinium are globally distributed in marine and freshwater ecosystems and may possess either heterotrophic or mixotrophic nutritional modes. Members of the Mesodinium major/rubrum species complex photosynthesize by sequestering and maintaining organelles from cryptophyte prey, and under certain conditions form periodic or recurrent blooms (= red tides). Here, we presen...

[1] Blooms of the coccolithophorid Emiliana huxleyi may be sensitive to climate change. A comparison of global Coastal Zone Color Scanner (CZCS, 1978–1986) and Seaviewing Wide Field-of-view Sensor (SeaWiFS, 1997– present) imagery appears to show them advancing into some sub-Arctic seas. To determine when coccolithophore blooms appeared in the Barents Sea this paper makes use of Advanced Very Hi...

BACKGROUND Anecdotal evidence reported an outbreak of symptoms on Fraser Island during the late 1990 s similar to those expected from exposure to dermotoxins found in the cyanobacterium L. majuscula. This coincided with the presence of a bloom of L. majuscula. METHODS Records from the Fraser Island National Parks First aid station were examined. Information on cyanobacterial blooms at Fraser ...

Evidence indicates that the incidence of cyanobacterial harmful algal blooms (CHABs) is increasing in spatial extent and temporal frequency worldwide. Cyanobacterial blooms produce highly potent toxins and huge, noxious biomasses in surface Waters used for recreation, commerce, and as drinking water sources. The Interagency, International Symposium on Cyanobacterial Harmful Algal Blooms (ISOC-H...

The operational service for algal bloom monitoring at NERSC is primarily based on NOAA AVHRR and SeaWiFS optical data. The service has shown very useful in several occasions since 1998 while severe and harmful blooms of the algae Chattonella sp. were reported from the North Sea off the coast of Denmark. Early detection and mapping of the extent and concentrations of the blooms were achieved. Ho...

The mammalian gut harbors a dense microbial community interacting in multiple ways, including horizontal gene transfer (HGT). Pangenome analyses established particularly high levels of genetic flux between Gram-negative Enterobacteriaceae. However, the mechanisms fostering intraenterobacterial HGT are incompletely understood. Using a mouse colitis model, we found that Salmonella-inflicted enter...

This study examines the species composition and seasonality of “green tides” (i.e., blooms of ulvoid macroalgae including Enteromorpha Link, Monostroma Thuret, Ulva (L.) Thuret, and Ulvaria Ruprecht spp.) in the northeastern Pacific region. Macroalgal blooms have been blamed for eradicating seagrass meadows, altering faunal community structure, and creating unsightly, malodorous piles on beache...

plankton studies are one of the major items of the marine scientific activities in the ropme seaarea, whereas numerous investigations have been conducted on the plankton during the past century. forphytoplankton, species composition, abundance and biomass, primary production, harmful algal blooms, redtide, toxic species, and eutrophication were considered. zooplankton studies included species c...