Flagellates in Freshwater Ecosystems

1. Front Matter

   Pages I-VII

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2. Taxonomy and Life Histories of Flagellates

   1. Records of chrysophytes with siliceous scales (Mallomonadaceae and Paraphysomonadaceae) from Finnish inland waters

      • Guy Hällfors, Seija Hällfors

      Pages 1-29

   2. Variability in size and ultrastructure of the statospore of Mallomonas caudata

      • Gertrud Cronberg

      Pages 31-39

   3. Sexual reproduction and life cycle of Ceratium furcoides (Dinophyceae) in situ in the lake Plußsee (F.R.)

      • Barbara Hickel

      Pages 41-48

   4. Morphology and life cycle of Ceratium rhomvoides nov. sp. (Dinophyceae) from the lake Plußsee (Federal Republic)

      • Barbara Hickel

      Pages 49-54

3. Spatial Distribution and Motility of Flagellates

   1. Lake Chisholm, a polyhumic forest lake in Tasmania

      • L. C. Bowling, P. A. Tyler

      Pages 55-67

   2. Horizontal mesoscale distribution of phytoplankton in the Tvärminne sea area, southern Finland

      • Harri Kuosa

      Pages 69-73

   3. Vertical distribution and diel migration of flagellated phytoplankton in a small humic lake

      • R. I. Jones

      Pages 75-87

   4. Seasonal variation in the diel vertical distribution of the migratory alga Cryptomonas marssonii (Cryptophyceae) in a small, highly humic lake

      • U. Smolander, L. Arvola

      Pages 89-98

   5. Vertical-migration patterns of flagellates in a community of freshwater benthic algae

      • Christine M. Happey-Wood

      Pages 99-123

   6. Some size relationships in phytoflagellate motility

      • Ulrich Sommer

      Pages 125-131

4. Seasonality of Flagellates

   1. Population dynamics of Ceratium spp. in three English lakes, 1945–1985

      • S. I. Heaney, J. W. G. Lund, Hilda M. Canter, Kim Gray

      Pages 133-148

   2. Spring development of a Chlamydomonas population in Lake Nimetön, a small humic forest lake in southern Finland

      • Anna Similä

      Pages 149-157

   3. Some aspects of the seasonal distribution of flagellates in mountain lakes

      • E. Rott

      Pages 159-170

   4. Seasonal occurrence of silica-scaled chrysophytes under eutrophic conditions

      • J. Kristiansen

      Pages 171-184

5. Trophic Relations of Flagellates

   1. Seasonal and spatial distribution of cryptophycean species in the deep, stratifying, alpine lake Mondsee and their role in the food web

      • Martin Dokulil

      Pages 185-201

   2. Flagellate grazing on bacteria in a small dystrophic lake

      • Kalevi Salonen, Sari Jokinen

      Pages 203-209

   3. Grazing of bacteria and phytoplankton by heterotrophic nanoflagellates in a Baltic Sea sample

      • Harri Kuosa, Birgitte Marcussen

      Pages 211-216

6. Flagellates and the Environment

   1. Mass development of the flagellate Gonyostomum semen (Raphidophyta) in Swedish forest lakes — an effect of acidification?

      • Gertrud Cronberg, Gunilla Lindmark, Sven Björk

      Pages 217-236

   2. Chrysophyte scales recorded in lake sediments from eastern Finland

      • Catherine E. Christie, John P. Smol, Pertti Huttunen, Jouko Meriläinen

      Pages 237-243

It is not so very long ago that botanical concensus abandoned the distinction that was drawn between Algae and Flagellata, the latter having been regarded by zoologists as a group of the Protozoa. Even today some colourless flagellates may find themselves occupying different locations in contrasting taxonomic schemes. However, modern developments in ecology have placed greater emphasis on functional attributes of organisms, and hydro biologists have certainly been in the forefront of such changes. Thus we find that flagellates are again the subject of controversy, not so much over their taxonomic position as over their functional position - their role in aquatic ecosystems. At the 22nd Congress of the International Association of Theoretical and Applied Limnology in Lyon, France in August 1983, we conceived the idea of a meeting to discuss 'Flagellates in Freshwater Ecosystems'. This idea was approved by the committee of SIL and we arranged for the meeting to take place during June 1986 at Lammi Biological Station (University of Helsinki) in Finland. Participants from nine countries enjoyed outstanding hospitality from the staff at the Station during a week of lectures, excursions and discussion ses­ sions. On behalf of the participants we express our thanks for the generous sponsorship received from the Maj and Tor Nessling Foundation, the Academy of Finland, the Finnish Ministry of Education, Lammi Biological Station and the Finnish Limnological Society.

• ecosystem

`It is no question that this book will be of greatest interest for all limnologists. It fills up a gap which may become conscious to many readers at first while reading the book. Among the ecologists, the flagellates are still often the stepchildren among the algae, and it is to be hoped, as intended by the editors, that the book stimulates the interest and the research in the group.'
Internationale Revue ges. Hydrobiologie, 75:3 (1990)

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