Shallow Lakes ’95 : Trophic Cascades in Shallow Freshwater and Brackish Lakes

Shallow lakes differ from deep ones in many aspects of nutrient dynamics, biotic structure and interactions of various trophic levels. Though very common in European lowlands, shallow lakes attract inadequate attention from research teams. This book aims at filling gaps in our knowledge of the processes which take place in non-stratified lakes. It contains proceedings from the international conference `Shallow Lakes *95' held in Mikolajki, Poland, on 20-26 August 1995. In more than 50 original papers up-to-date views on eutrophication, degradation and recovery of shallow lakes are presented. The first four sections of the book (Nutrient fluxes, Biotic structure, Trophic interactions and Whole lake studies) deal with theoretical aspects of lake functioning while the fifth (Biomanipulation, restoration and management) is devoted to practical measures undertaken to improve water quality in shallow lakes. The book is therefore addressed to university biologists and ecologists and PhD students, as well as to managers involved in restoration of shallow lakes. Front Matter....Pages i-x A model of nutrient dynamics in shallow lakes in relation to multiple stable states....Pages 1-8 Phosphorus release in Lake Großer Müggelsee and its implications for lake restoration....Pages 9-26 Do rooted macrophytes increase sediment phosphorus release?....Pages 27-34 Facilitation of phosphate assimilation by aquatic mycorrhizae of Vallisneria americana Michx....Pages 35-41 Phosphorus balance of a polytrophic shallow lake with the consideration of phosphorus release....Pages 43-53 Relative nitrogen deficiency without occurrence of nitrogen fixing blue-green algae in a hypertrophic reservoir....Pages 55-61 High bacterial production in hypertrophic shallow reservoirs rich in humic substances....Pages 63-70 The occurrence of heterotrophic bacteria decomposing some macromolecular compounds in shallow estuarine lakes....Pages 71-78 Picoplankton and other size groups of phytoplankton in various shallow lakes....Pages 79-85 The dynamics and importance of picoplankton in shallow, dystrophic lake in comparison with surface waters of two deep lakes with contrasting trophic status....Pages 87-93 Influence of small-scale turbulence and large-scale mixing on phytoplankton primary production....Pages 95-105 Factors controlling the dominance of Planktothrix agardhii and Limnothrix redekei in eutrophic shallow lakes....Pages 107-115 Meiobenthos communities of some subarctic lakes....Pages 117-124 Significance of subfossile chironomid remains in classification of shallow lakes....Pages 125-132 Chironomus plumosus — what regulates its abundance in a shallow reservoir?....Pages 133-142 Macroinvertebrate communities in relation to submerged vegetation in two Chara -dominated lakes....Pages 143-150 Top-down control in freshwater lakes: the role of nutrient state, submerged macrophytes and water depth....Pages 151-164 Seasonal successions and trophic relations between phytoplankton, zooplankton, ciliate and bacteria in a hypertrophic shallow lake in Vienna, Austria....Pages 165-174 Zooplankton—phytoplankton interactions in lakes Võrtsjärv, Peipsi (Estonia) and Yaskhan (Turkmenia)....Pages 175-183 Biotic interactions of the zooplankton community of a shallow, humic lake....Pages 185-195 Interactions between piscivores, zooplanktivores and zooplankton in submerged macrophytes: preliminary observations from enclosure and pond experiments....Pages 197-205 The impact of predation by perch on the size-structure of Chironomus larvae — the role of vertical distribution of the prey in the bottom sediments, and habitat complexity....Pages 207-213 Impact of fish predation on a small-bodied cladoceran: limitation or stimulation?....Pages 215-221 Size-selective filtration and taxon-specific digestion of plankton algae by silver carp ( Hypophthalmichthys molitrix Val.)....Pages 223-228 Submerged macrophytes as refuges for grazing Cladocera against fish predation: observations on seasonal changes in relation to macrophyte cover and predation pressure....Pages 229-240 Interactions between coot ( Fulica atra ) and submerged macrophytes: the role of birds in the restoration process....Pages 241-255 Vertically-challenged limnology; contrasts between deep and shallow lakes....Pages 257-267 Why ‘very shallow’ lakes are more successful opposing reduced nutrient loads....Pages 269-284 Changes in ecological relationships in a group of eight shallow lakes in the Polesie Lubelskie region (eastern Poland) over forty years....Pages 285-295 Why does Druzno Lake (Poland) still exist? On the conditions of the pond ecosystem sustainability....Pages 297-304 Food-web manipulation in shallow, eutrophic lakes: bridging the gap between the whole-lake approach and behavioural and demographic studies....Pages 305-310 Pike ( Esox lucius L.) stocking as a biomanipulation tool 1. Effects on the fish population in Lake Lyng, Denmark....Pages 311-318 Pike ( Esox lucius L.) stocking as a biomanipulation tool 2. Effects on lower trophic levels in Lake Lyng, Denmark....Pages 319-325 Food-web manipulation in the Maltański Reservoir....Pages 327-333 Effects of biomanipulation in the large and shallow Lake Wolderwijd, The Netherlands....Pages 335-349 The process of biomass formation as the key point in the restoration of tropical eutrophic lakes....Pages 351-354 Biomanipulation in shallow lakes: state of the art....Pages 355-365 Lake Volkerak-Zoom: a lake shifting from the clear to the turbid state....Pages 367-376 Food-web manipulation in a small, eutrophic Lake Wirbel, Poland: the effect of replacement of key predators on epiphytic fauna....Pages 377-381 Food-web manipulation in a small, eutrophic Lake Wirbel, Poland: long-term changes in fish biomass and basic measures of water quality. A case study....Pages 383-386 Eutrophication processes in a shallow, macrophyte-dominated lake — nutrient loading to and flow through Lake Łuknajno (Poland)....Pages 387-394 Eutrophication processes in a shallow, macrophyte dominated lake — alkaline phosphatase activity in Lake Łuknajno (Poland)....Pages 395-399 Eutrophication processes in a shallow, macrophyte-dominated lake — factors influencing zooplankton structure and density in Lake Łuknajno (Poland)....Pages 401-409 Eutrophication processes in a shallow, macrophyte-dominated lake — species differentiation, biomass and the distribution of submerged macrophytes in Lake Łuknajno (Poland)....Pages 411-416