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Showing 1 to 14 of 14 for “"Plankton populations"”.
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Relationship of plankton and marine snow to hydrography and currents on the southwest portion of Georges Bank during June 1997
A key question in biological oceanography is how plankton populations maintain themselves in regions of favorable growth and survival in the face of horizontal transport by ocean currents. Plankton are thought to be retained on the highly productive Georges Bank by the clockwise flow, which …
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Application of synchronisation theory to plankton patchiness
… dynamics approach to modelling a distribution of plankton by representing a region of ocean as an ensemble of plankton populations interacting through the stirring and mixing effects of the flow. The methods of synchronisation theory are applied within this framework to gain insight into emergent …
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Modeling Plankton Community Structure Under Environmental Forcing on the Southeastern United States Continental Shelf
… investigate the time-dependent behavior of phytoplankton, copepod, and doliolid populations associated with upwelling features on the outer southeastern U.S. continental shelf. Model equations describe the interactions of nitrate, ammonium, two phytoplankton size fractions, five copepod …
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Seasonal and Spatial Distribution of the Plankton of Barren Lake, Kentucky, with Special Reference to the Phytoplankton Community
… pH was consistently slightly alkaline. The phytoplankton community was dominated by taxa considered to be characteristic of both eutrophic and oligotrophic waters, but maxima were relatively low (77000 - 155000 cells/1). During the study, five major phytoplankton populations were present: …
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Changes in Water Quality as Related to Retention Time Within Red Rock Reservoir, Iowa, Summer 1972
… flushing rate could prevent the development of plankton populations and retard further eutrophication. Recommendations. Further work involving nutrient cycles, regeneration and supply in reservoirs is needed. Red Rock Reservoir should be studied during periods in which strong thermal …
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Relationship of plankton and marine snow to hydrography and currents on the south portion of Georges Bank during June 1997
A key question in biological oceanography is how plankton populations maintain themselves in regions of favorable growth and survival in the face of horizontal transport by ocean currents. Plankton are thought to be retained on the highly productive Georges Bank by the clockwise flow, which …
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Transform texture classification
… statistical Gaussian classifier is used. The plankton object recognition experiments use a Learning Vector Quantization (LVQ) neural-net classifier to achieve superior performance on the highly non-uniform plankton database. By introducing a new parallel LVQ learning scheme, the speed of …
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Larval ecology and synchronous reproduction of two crustacean species : Semibalanus balanoides in New England, USA and Gecarcinus quadratus in Veraguas, Panama
… studied the effect of turbidity and phytoplankton on larval release response. Release coincided with increased turbidity at three sites along the northeast coast of the United States. A three-year time series of phytoplankton and zooplankton data showed that larval release was not …
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THE DEVELOPMENT OF DIATOM-NUTRIENT PALAEOLIMNOLOGICAL INFERENCE MODELS FOR UK LOWLAND RESERVOIRS
… to those reported from similar studies. The plankton provides the dominant habitat for diatom growth in reservoirs, thus plankton-only models are also created and perform almost as well as models developed using all taxa. Examination of seasonal diatom plankton populations indicates that many …
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Quantitative modelling of spatial variability in the north Atlantic spring phytoplankton bloom
… on the development of the spring phytoplankton bloom are investigated using a physically forced model of the annual plankton cycle in the ocean mixed layer. The model is optimised to fit survey data from the eastern North Atlantic, collected over a 1500 x 1500 km area between 39N and …
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Modeling Nutrient and Plankton Processes in the California Coastal Transition Zone
… spatial and temporal development of nutrient and plankton distributions in the CTZ. The first of these models considers only time- and vertical processes at specific locations in the CTZ. The model food web components include: silicate, nitrate, ammonium, two phytoplankton size fractions, …
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Biological-physical interactions on Georges Bank : plankton transport and population dynamics of the ocean quahog, Arctica islandica
… bank addressed effects of storms on the spring plankton bloom. An NPZ model and a copepod stage structure model were mode led as passive tracers. Results indicate that strong storms (13 m/s wind for 20 days) can cause marked replacement of bank water and loss of zooplankton and phytoplankton. …
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The role of heterotrophic microflagellates in plankton communities
… of these protozoa as a trophic link between planktonic bacteria and zooplankton. The abundance of microflagellates relative to other picoplankton (0.2-2.0 μm) and nanoplankton (2-20 μm) populations in water samples in the North Atlantic and in Lake Ontario and on macroaggregates in the North …