Dynamics of Phytoplankton in a Hypertrophic Lake PDF Download
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Author: Teresa Szyszka
Publisher:
ISBN: 9788323204336
Category : Algal populations
Languages : en
Pages : 39
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Book Description
Author: Teresa Szyszka
Publisher:
ISBN: 9788323204336
Category : Algal populations
Languages : en
Pages : 39
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Book Description
Author: Louis Gressett Williams
Publisher:
ISBN:
Category : Algae
Languages : en
Pages : 100
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Book Description
Author: C. S. Reynolds
Publisher: Cambridge University Press
ISBN: 9780521282222
Category : Science
Languages : en
Pages : 398
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Book Description
This describes the lifestyles of planktons and their adaptation for living independently of solid surfaces.
Author: Joop Ringelberg
Publisher: Springer Science & Business Media
ISBN: 904813093X
Category : Science
Languages : en
Pages : 360
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Book Description
Whatever theory may be advanced to explain diurnal migration, the underlying reactions involved must be demonstrated conc- sively in the laboratory before the explanation can be ?nally accepted George L. Clarke 1933 p. 434 In oceans and lakes, zooplankton often make diel vertical migrations (DVM), descending at dawn and coming up again in late afternoon and evening. The small animals cover distances of 10–40 m in lakes or even a few hundred metres in the open oceans. Although not as spectacular as migrations of birds or the massive movements of large mammals over the African savannas, the numbers involved are very large and the biomass exceed the bulk of the African herds. For example, in the Antarctic oceans swarms of “Krill” may cover kilometres across, with thousands of individuals per cubic metre. These Euphausiids are food for whales, the most bulky animals on earth. Zooplankton are key species in the pelagic food web, intermediary between algae and ?sh, and thus essential for the functioning of the pelagic community. Prey for many, they have evolved diverse strategies of survival and DVM is the most imp- tant one. Most ?sh are visually hunting predators and need a high light intensity to detect the often transparent animals. By moving down, the well-lit surface layers are avoided but they have to come up again at night to feed on algae.
Author: Robert V. Thomann
Publisher:
ISBN:
Category : Ontario, Lake (N.Y. and Ont.)
Languages : en
Pages : 198
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Book Description
Author: Mohiuddin Munawar
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Norbert Walz
Publisher: Springer Science & Business Media
ISBN: 3642778046
Category : Science
Languages : en
Pages : 310
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Book Description
Continuous cultures, i.e. chemostats with an continuous dilution rate, are model ecosystems for the study of general regulation principles in plankton communities. Further to an introduction, general continuous culture methods and especially the characteristics of rotifer continuousculture systems are presented. Sections on metabolism and energetics in chemostats, growth models, competition and predator-prey interactions, as well as the application of rotifer continuous cultures to ecotoxicology and their use in aquaculture are included.
Author: Eldon Blancher
Publisher:
ISBN: 9780530007281
Category : Nature
Languages : en
Pages : 160
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Book Description
Abstract: This dissertation includes data on the population dynamics of numerous zooplankton species in a range of trophic conditions throughout Florida. It also has water quality information which was gathered simultaneously with the biological collections. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Lake Conway Florida" by Eldon Carl Blancher, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Author: Richard Lee Meyer
Publisher:
ISBN:
Category : Fayetteville, Lake (Ark.)
Languages : en
Pages : 76
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Book Description
Author: J.-P. Descy
Publisher: Springer
ISBN: 9780792331117
Category : Science
Languages : en
Pages : 240
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Book Description
The ecology of potamoplankton has received less attention than lake plankton. These proceedings produce a synthesis of the composition, community structure and dynamics of lotic phytoplankton, which are intuitively submitted to a strong physical control in the flowing environment, perceived as much more `disturbed' than a lake, even than a well-mixed shallow one. It turns out that the boundary between the phytoplankton of rivers and lakes is not as clear-cut as was thought. In particular, most contributions provide arguments emphasizing the prominent role of physical control in both aquatic systems, especially due to the steep light gradient resulting from turbulent mixing in a turbid water column. Similarities and differences between potamoplankton and limnoplankton, largely based on the information gathered by the contributors are discussed in the introductory paper by Reynolds et al.
