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Dynamics of Phytoplankton Communities Under Photoinhibition
Bulletin of Mathematical Biology, 2013We analyzed a model of phytoplankton competition for light in a well-mixed water column. The model, proposed by Gerla et al. (Oikos 120:519-527, 2011), assumed inhibition of photosynthesis at high irradiance (photoinhibition). We described the global behavior through mathematical analyses, providing a general solution to the multi-species competition ...
Kohei Yoshiyama +3 more
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1979
The phytoplankton community of Lake Lanao is composed of 70 euplanktonic species, including Cyanophyta (12), Euglenophyta (4), Chlorophyta (44), Chrysophyceae (1), Bacillariophyceae (4), Dinophyceae (3), and Cryptophyceae (2) (Fig. 3-1). Composition similar to this appears to be very widespread in tropical lakes that are not highly saline or extremely ...
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The phytoplankton community of Lake Lanao is composed of 70 euplanktonic species, including Cyanophyta (12), Euglenophyta (4), Chlorophyta (44), Chrysophyceae (1), Bacillariophyceae (4), Dinophyceae (3), and Cryptophyceae (2) (Fig. 3-1). Composition similar to this appears to be very widespread in tropical lakes that are not highly saline or extremely ...
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Phytoplankton Communities in Temperate Rivers [PDF]
, 2012 The structure of phytoplankton communities was examined seasonally across five rivers with a focus on small cells and their relative importance. Picophytoplankton (0.2-2 μm), previously considered insignificant in rivers, reached densities as high as those observed in lakes and oceans (~ 10e4-10e5 cells/mL). Their relative importance was not a function
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Photoinhibition and the assembly of light‐limited phytoplankton communities
Oikos, 2010Photoinhibition is characterised by a decreasing rate of photosynthesis with increasing light. It occurs in many photosynthetic organisms and is especially apparent in phytoplankton species sensitive to high light. Yet, the population and community level consequences of photoinhibition are not well understood.
Gerla, D.J., Mooij, W.M., Huisman, J.
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An in situ toxicity assay with the local phytoplankton community
Environmental Toxicology and Chemistry, 2011AbstractThe present study describes an approach for toxicity estimates based on the in situ exposure of the local phytoplankton community immobilized in calcium-alginate beads. The assay was deployed in an acid mine drainage-impacted system, at a reference site and an impacted site.
Moreira-Santos, M +4 more
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Nutrient breakpoints for estuarine phytoplankton communities
Limnology and Oceanography, 2020AbstractNutrient breakpoints are the concentration at which there is a fundamental change in phytoplankton responses to further increases in nutrient loading. The ecological implication is that nutrient breakpoints signal a community transition from a relatively stable state to an alternate or transition state with marked changes in structure and, by ...
James L. Pinckney +3 more
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Trophic Cascades and Phytoplankton Community Structure
Ecology, 1990Two predators of zooplankton, fish (yellow perch) and larval insects (Chaoborus), were manipulated within in situ mesocosms to assess their indirect effects on phytoplankton. The two predators caused similar reductions in zooplankton size and biomass, and as a consequence, zooplankton grazing rates on phytoplankton.
Michael J. Vanni +2 more
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Herbivoran impact on phytoplankton community structure
Hydrobiologia, 1991An enclosure experiment was conducted to assess the effects of a zooplankton elimination on the structure of a phytoplankton community. Phytoplankton biomass and production were higher in grazer-free enclosures, while the productivity per unit biovolume was lower.
Jan A. E. Stenson, Jan-Erik Svensson
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Species and Individual Productivity in Phytoplankton Communities
Ecology, 1971The relative productivity of individual cells in a mixed phytoplankton community has been determined by (14)C autoradiography. These data allow the estimation of the relative contribution of each of the component species to total community production, illustrate the size—specific production of the cells of each of these species, and suggest predictions
Bassett Maguire, William E. Neill
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Triclosan alterations of estuarine phytoplankton community structure
Marine Pollution Bulletin, 2017Antimicrobial additives in pharmaceutical and personal care products are a major environmental concern due to their potential ecological impacts on aquatic ecosystems. Triclosan (TCS) has been used as an antiseptic, disinfectant, and preservative in various media.
James L. Pinckney +2 more
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