Lake Verevi, Estonia - A Highly Stratified Hypertrophic Lake

Lake Verevi, Estonia - A Highly Stratified Hypertrophic Lake PDF Author: Toomas Kõiv
Publisher: Springer Science & Business Media
ISBN: 1402043635
Category : Science
Languages : en
Pages : 202

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Book Description
This book summarises investigations on Lake Verevi (surface 12.6 ha, mean depth 3.6 m), located in the Estonian town of Elva, initiated since 1929. The seventeen articles deal with a wide range of questions, starting with a holistic overview of the ecological status, over assessments of long-term changes in biotic and abiotic conditions and finishing with proposed restoration plans. Abiotic chapters provide calculations on water and mass balance, distribution and fractions of phosphorus in the sediment, optical properties and penetration of radiation in the water column, sedimentation rate during the formation of stratification, and nitrogen circulation characteristics. All these phenomena explain the special environmental features of this highly stratified lake. Long-term changes, seasonal development, primary production and resource ratios inducing the distribution of species composition of various biota (bacterio-, phyto and zooplankton, periphyton, macrovegetation, macrozoobenthos, fish) are discussed. The most important issues are long-term investigations on a complex ecosystem, the phenomenon of partial meromixis, the description of restoration methods, and the existence of narrow microniches for plankton in the water column. The volume firmly establishes Lake Verevi as a model system of a natural aquatic habitat, experiencing a multitude of anthropogenic pressures, but for which restoration plans aim to provide sustainable management in the future.

Lake Verevi, Estonia - A Highly Stratified Hypertrophic Lake

Lake Verevi, Estonia - A Highly Stratified Hypertrophic Lake PDF Author: Toomas Kõiv
Publisher: Springer Science & Business Media
ISBN: 1402043635
Category : Science
Languages : en
Pages : 202

Get Book Here

Book Description
This book summarises investigations on Lake Verevi (surface 12.6 ha, mean depth 3.6 m), located in the Estonian town of Elva, initiated since 1929. The seventeen articles deal with a wide range of questions, starting with a holistic overview of the ecological status, over assessments of long-term changes in biotic and abiotic conditions and finishing with proposed restoration plans. Abiotic chapters provide calculations on water and mass balance, distribution and fractions of phosphorus in the sediment, optical properties and penetration of radiation in the water column, sedimentation rate during the formation of stratification, and nitrogen circulation characteristics. All these phenomena explain the special environmental features of this highly stratified lake. Long-term changes, seasonal development, primary production and resource ratios inducing the distribution of species composition of various biota (bacterio-, phyto and zooplankton, periphyton, macrovegetation, macrozoobenthos, fish) are discussed. The most important issues are long-term investigations on a complex ecosystem, the phenomenon of partial meromixis, the description of restoration methods, and the existence of narrow microniches for plankton in the water column. The volume firmly establishes Lake Verevi as a model system of a natural aquatic habitat, experiencing a multitude of anthropogenic pressures, but for which restoration plans aim to provide sustainable management in the future.

Canadian Journal of Fisheries and Aquatic Sciences

Canadian Journal of Fisheries and Aquatic Sciences PDF Author:
Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 544

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Proceedings of the Estonian Academy of Sciences, Biology and Ecology

Proceedings of the Estonian Academy of Sciences, Biology and Ecology PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 72

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The British National Bibliography

The British National Bibliography PDF Author: Arthur James Wells
Publisher:
ISBN:
Category : Bibliography, National
Languages : en
Pages : 2142

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Archiv Für Hydrobiologie

Archiv Für Hydrobiologie PDF Author:
Publisher:
ISBN:
Category : Freshwater biology
Languages : en
Pages : 636

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Proceedings of the Estonian Academy of Sciences

Proceedings of the Estonian Academy of Sciences PDF Author:
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 618

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Algal Toxins: Nature, Occurrence, Effect and Detection

Algal Toxins: Nature, Occurrence, Effect and Detection PDF Author: Valtere Evangelista
Publisher: Springer Science & Business Media
ISBN: 1402084803
Category : Science
Languages : en
Pages : 398

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Book Description
This volume contains the lectures and seminars given at the NATO Advanced Study Institute on “Sensor Systems for Biological Threads: The Algal Toxins Case”, held in Pisa, Italy in October, 2007. The Institute was sponsored and funded by the Scientific Affairs Division of NATO. It is my pleasant duty to thank this institution. This ASI offered updated information on how far the research on algal toxins has gone in the exploration of structures, biosynthesis and regulation of toxins, and the development of technology for bio-monitoring these c- pounds. Algae can form heavy growths in ponds, lakes, reservoirs and sl- moving rivers throughout the world; algae can house toxins which are - ually released into water when the cells rupture or die. Hundreds of toxins have been identified so far. Detection methods, including rapid screening, have been developed to help us learning more about them, especially to find out which toxins are a real threat for people and what conditions encourage their production and accumulation. Early detection of algal toxins is an - portant aspect for public safety and natural environment, and significant efforts are underway to develop effective and reliable tools that can be used for this purpose.

Hypertrophic Ecosystems

Hypertrophic Ecosystems PDF Author: J. Barica
Publisher: Springer Science & Business Media
ISBN: 9400992033
Category : Science
Languages : en
Pages : 337

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Book Description
The idea of convening an international workshop on hypertrophic ecosystems originated during the 20th S.I.L. Congress in Copenhagen. A group of about 30 delegates met there in an informal gathering to discuss the specific problems of lakes which have reached a noxious stage of eutrophication. This ad hoc group realized its own specific identity within the limnological community and suggested the organization of a specialized future meeting on hypertrophic ecosystems. After two years of preparatory work, the workshop was fmally held in Vaxjo, Sweden, between September 10 and 14, 1979, on the premises of the University campus. The Institute of Limnology, University of Lund (Professor Sven Bjork), undertook the task of host and organizer. The City ofVaxjo and the University of Lund co-sponsored the event, which was held under the auspices and patronage of the Societas Internationalis Limnologiae. The objective of the workshop was to seek better understanding of highly-eutrophic, disturbed and unstable aquatic ecosystems (lakes, reservoirs and ponds developing noxious algal and bacterial blooms, fluctuating in their water quality on a daily and seasonal scale, producing gases, off-flavor and toxic substances, experiencing periodic anoxia and massive fish kills, etc.), Le., systems requiring corrective measures and new concepts for their solution beyond those generally accepted for 'normal' eutrophic systems.

The Ecology of Phytoplankton

The Ecology of Phytoplankton PDF Author: C. S. Reynolds
Publisher: Cambridge University Press
ISBN: 1139454897
Category : Science
Languages : en
Pages : 437

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Book Description
This important new book by Colin Reynolds covers the adaptations, physiology and population dynamics of phytoplankton communities. It provides basic information on composition, morphology and physiology of the main phyletic groups represented in marine and freshwater systems and in addition reviews recent advances in community ecology.

Harmful Cyanobacteria

Harmful Cyanobacteria PDF Author: Jef Huisman
Publisher: Springer Science & Business Media
ISBN: 1402030223
Category : Science
Languages : en
Pages : 249

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Book Description
This outstanding volume provides an up-to-date overview of the advances in our knowledge of harmful cyanobacteria. An essential reference for all scientists and environmental professionals interested in cyanobacterial ecology and water management.