Algal assays and monitoring eutrophication

Ed.: P. Marvan; S. Pribil; Oldrich Lhotský

1979. 1. edition, VIII, 253 pages, 104 figures, 20 tables, 2 plates, 16x24cm, 590 g
Language: English

ISBN 978-3-510-65091-0, paperback, price: 25.00 €

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Content Description top ↑

Conservation and improvement of the environment all over the world is one of the main ecological problems facing mankind today. For many densely populated countries with a highly developed industry and intensive agriculture, one vital problem is to maintain a water supply of sufficient purity. Water management is a fairly complex, unremitting task requiring the cooperation of the many different bodies concerned — the water management authorities at all levels and the relevant research institutes.

The growing quantity of organic matter in streams and reservoirs due to the spreading use of inorganic fertilizers has become the most urgent problem in connection with the quality of water. This is a worldwide problem, since growing demand for food can be satisfied only by more intensive agriculture using high quantities of fertilizer. These fertilizers are washed out of the soil into streams and reservoirs and seep into the ground water. It is essential to reconcile the mutually antagonistic demands of modern agriculture and water management. To do so, figures must be available on the amount of organic matter to be expected in the polluted water. A simple method is needed to elucidate the complex of factors which influence the growth and development of primary producer populations, and thus permit the assessment of their production potential. Of the available methods, the control of the trophic level of natural and polluted waters by means of algal assays appears to be a most promising approach. A thorough elaboration of this method and its general application in water quality control require an adequate understanding of the biological and physiological features of algal populations and communities. The selection of suitable species and the application of appropriate cultivation techniques are also essential for the successful utilization of these bio-assays.

The present volume provides a summary of current knowledge, as presented at the colloquium on algal assays in Trebon in 1976.

Contents top ↑

List of contributors IV
Preface I
I. Problems of eutrophication and its estimation
Problems of eutrophication, its impact, development
and models of eutrophication
The practical consequences of eutrophication from the
aspect of water management, hygiene and fishery 11 - 16
Algal assays - an introduction into the problem
P. MARVAN 17 - 22
II. Theoretical principles of algal tests
Cell growth and division of unicellular algae and
Cyanophyceae 23 - 40
Radiation energy, temperature and algal growth
J. SIMMER 41 - 45
Factors limiting the growth of algal cultures
P. MARVAN and S. PRIBIL 47 - 56
Synchronous cultures
J. DOUCHA and J. SIMMER 57 - 68
Cytological aspects of algal assays 69 - 76
Methods for algal growth evaluation
III. Selection of organisms and their precultivation
Selection and registration of strains of algae as
assay organisms
J. KOMAREK and P. MARVAN 87 - 102
Review of algal assay strains
J. KOMAREK and 0. LHOTSKY 103 - 118
Bioassays using a natural phytoplankton assemblage
P. JAVORNICKY 119 - 130
Macrophytes used in bioassays
D. DYKYJOVA 131 - 135
Algal cultures from the point of view of population
J. LUKAVSKY 137 - 139
Genetic variability and the resulting nonhomogeneity
in algal populations
J. NECAS 141 - 152
IV. Cultivation techniques
The technique of microcultivation of algae
V BREZINA 153 - 161
Cultivation on solid media
J. LUKAVSKY 163 - 174
Batch cultivation
S. PRIBIL and P. MARVAN 175 - 180
Continuous cultures of algae
J. DOUCHA 181 - 191
In situ tests using phytoplankton
J. KOMARKOVA 193 - 204
Periphyton assays in situ
A. SLADECKOVA 205 - 209
V. Application of the tests to water management
Biological assay and eutrophication
D. MATULOVA 211 - 221
Determination of the trophic potential - application
in hydrobiological practice
Z. ZAKOVA 223 - 233
Algal tests and the ratio of saprobic versus
trophic levels
V. SLADECEK 235 - 237
VI. Bibliography
Selected bibliography on the methodology of algal assays
O. LHOTSKY 239 - 253