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Showing 1 to 13 of 13 for “"CHLOROPHYTES"”.
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Environmental variables and the development of phytoplankton assemblages in a hyper-eutrophic African reservoir
… and proliferation of cryptophytes and chlorophytes (eukaryotic algae) and (ii) a turbid state with domination by Microcystis and gradual exclusion of other species.
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Cyanobacteria harmful algal blooms in South Louisiana estuaries : a synthesis of field research, management implications, and outreach
… During the large flow year (21.9 km3) in 2011, chlorophytes and diatoms were the dominant groups. In 2012, with a much lower flow of 0.3 km3, again chlorophytes and diatoms were dominant in the spring, but both years cyanobacteria numbers significantly increased in the late summer. The second …
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Organic-walled microplankton paleoecology and biostratigraphy of the Upper Cretaceous Ripley Formation, southwestern Georgia
… of dinoflagellates, 3 genera and 4 species of chlorophytes, 3 genera and 4 species of acritarchs, and 1 problematical protozoan. 15 of these taxa are unpublished. The study's cyst assemblage was statistically analyzed to ascertain paleoecologic patterns. The results from cluster analysis and …
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Spectral Irradiance and Phytoplankton Community Composition In Blackwater Estuaries
… with greater efficiency than diatoms or chlorophytes. In habitats where green light prevailed, both haptophytes and cryptophytes absorbed most of the light.</p>
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Factors Effecting Phytoplankton Assemblages in the Lafayette River Estuary
… cells were dominant, with increasing numbers of chlorophytes and cyanophytes. Environmental conditions associated with these areas were low salinity, high temperatures and increased nutrient levels.</p> <p>Discriminant Function and Pearson Correlation analyses were conducted separately on …
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Phytoplankton Ecology in the Skidaway River Estuary
… and Nitzschia species, and other taxa including chlorophytes like Nannochloropsis and dinoflagellates like Gymnodinium were more common in Spring. Salinity explained most of the variation in phytoplankton abundance and species composition and there were also positive relationships between the …
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Light utilization and excretion of organic matter by antarctic lake phytoplankton
… unicellular chrysophytes and flagellated chlorophytes. Quantum yields were calculated using a suggested value for the spectral extinction coefficient of chlorophyll a (k<sub>c</sub>)=0.016 and an empirical estimation of k<sub>c</sub>= 0.0328. Quantum yields ranged from 0.0045 to 0.156 …
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THE RISE OF THE GREEN ALGAE: USING ALGAL PALYNOMORPHS AS PROXIES OF NATURAL EVENTS AND ANTHROPOGENIC ACTIVITIES
… with planktonic colonial cyanophytes and chlorophytes persisted until major fires occurred in Walden Woods in the early 20th century. The different types of land-use between the two sites were hypothesized to be the driving factor that determines algal palynomorph assemblages. Sediments …
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Ammonia uptake by phytoplankton and limnological studies of Mountain Lake, Virginia
… sp. and Peridinium wisconsinense. Dominant chlorophytes included Scenedesmus bijuga, Quadrigula chodatii, and Oocystis pusilla. Important cryptophytes were Cryptomonas erosa var. reflexa, C. pusilla, and C. pyrenoidifera. The most abundant cyanophyte was Aphanocapsa elachista var. conferta. …
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Phytoplankton community structure and cyanobacterial blooms in reservoirs in the semi-arid highlands of Tigray, Ethiopia
… genus of cyanobacteria (mostly Microcystis), chlorophytes, euglenophytes, cryptophytes or dinophytes. Similarly the bacterial community richness in the studied reservoirs was also low. Lower bacterial taxon richness was encountered in reservoirs with Microcystis blooms than bacterial …
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Impacts of Delayed Drawdown on Water Quality and Aquatic Biota in Seasonal Wetlands of the Grassland Ecological Area, Los Banos, California
… <p> Identified phytoplankton were predominantly chlorophytes and diatoms. Zooplankton that feed on phytoplankton were found in abundance and consisted mostly of Cladocera. Benthic invertebrate densities were also measured to help explain the differences in algal concentrations between ponds. …
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Spatial and temporal variation of the phytoplankton in Cayuga Lake
… cryptophytes. Diatoms were prominent in spring, chlorophytes and cyanophytes in summer. Biomass was greatest during late spring. The number of phytoplankton species was greatest in August and September. Principal component analysis of species' biomasses isolated nine communities of species. Eight …
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ΕΡΕΥΝΕΣ ΕΠΙ ΤΩΝ ΒΕΝΘΙΚΩΝ ΜΑΚΡΟΦΥΚΩΝ (CHLOROPHYCEAE, PHAEOPHYCEAE, RHODOPHYCEAE) ΤΟΥ ΚΟΡΙΝΘΙΑΚΟΥ ΚΟΛΠΟΥ. ΧΛΩΡΙΔΙΚΗ, ΤΑΞΙΝΟΜΙΚΗ, ΦΥΤΟΓΕΩΓΡΑΦΙΚΗ, ΟΙΚΟΛΟΓΙΚΗΜΕΛ...
THIS STUDY EXAMINES THE BENTHIC CHLOROPHYCEAE, PHAEOPHYCEAE AND RHODOPHYCEAE OFTHE KORINTHIAKOS GULF, GREECE, FROM THE FLORISTIC, TAXONOMIC ECOLOGICAL AND PHYTOGEOGRAPHICAL POINTS OF VIEW. SEVEN CHAPTERS ARE INCLUDED IN THE PRESENT WORK. HISTORICAL REVIEW OF THE MARINE ALGAL RESEARCH CARRIES OUT IN …