Shallow Lakes in a Changing World

1. Front Matter

   Pages I-VIII

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2. Nutrient Dynamics

   1. Phosphorus reference concentrations in European lakes

      • A. C. Cardoso, A. Solimini, G. Premazzi, L. Carvalho, A. Lyche, S. Rekolainen

      Pages 3-12

   2. Benthic nutrient fluxes in a eutrophic, polymictic lake

      • D. F. Burger, D. P. Hamilton, C. A. Pilditch, M. M. Gibbs

      Pages 13-25

   3. Modeling nitrogen cycling in a coastal fresh water sediment

      • Richard W. Canavan, Anniet M. Laverman, Caroline P. Slomp

      Pages 27-36

   4. Sediment phosphorus cycling in a large shallow lake: spatio-temporal variation in phosphorus pools and release

      • Bryan M. Spears, Laurence Carvalho, Rupert Perkins, Alex Kirika, David M. Paterson

      Pages 37-48

   5. Nitrate dynamics in a reed belt of a shallow sand dune lake in Japan: Analysis of nitrate retention using stable nitrogen isotope ratios

      • Haruo Fukuhara, Fumiko Nemoto, Yoko Takeuchi, Nobushige Toda

      Pages 49-58

   6. Temporal trends of ion contents and nutrients in three Kenyan Rift Valley saline-alkaline lakes and their influence on phytoplankton biomass

      • S. O. Oduor, M. Schagerl

      Pages 59-68

3. Macrophytes

   1. Elongation and mat formation of Chara aspera under different light and salinity conditions

      • Irmgard Blindow, Manuela Schütte

      Pages 69-76

   2. Searching for allelopathic effects of submerged macrophytes on phytoplankton—state of the art and open questions

      • Elisabeth M. Gross, Sabine Hilt, Paola Lombardo, Gabi Mulderij

      Pages 77-88

   3. Allelopathic activity of Stratiotes aloides on phytoplankton—towards identification of allelopathic substances

      • Gabi Mulderij, Birgit Mau, Ellen van Donk, Elisabeth M. Gross

      Pages 89-100

   4. The role of aquatic macrophytes in microhabitatual transformation of physical-chemical features of small water bodies

      • Tomasz Joniak, Natalia Kuczyńska-Kippen, Barbara Nagengast

      Pages 101-109

   5. Assessment in two shallow lakes of a hydroacoustic system for surveying aquatic macrophytes

      • I. J. Winfield, C. Onoufriou, M. J. Or’Connell, M. Godlewska, R. M. Ward, A. F. Brown et al.

      Pages 111-119

4. Limnogy/Paleolimnology

   1. Combining limnological and palaeolimnological approaches in assessing degradation of Lake Pskov

      • Mihkel Kangur, Jaan-Mati Punning, Külli Kangur, Reet Laugaste, Tönu Möls

      Pages 121-132

   2. Sediment diatom assemblages and composition of pore-water dissolved organic matter reflect recent eutrophication history of lake peipsi (Estonia/Russia)

      • Atko Heinsalu, Tiiu Alliksaar, Aina Leeben, Tiina Nõges

      Pages 133-143

   3. Factors influencing taxonomic composition and abundance of macrozoobenthos in extralittoral zone of shallow eutrophic lakes

      • Janusz Żbikowski, Jarosław Kobak

      Pages 145-155

5. Food WEBS

   1. The role of cladocerans reflecting the trophic status of two large and shallow Estonian lakes

      • Juta Haberman, Reet Laugaste, Tiina Nõges

      Pages 157-166

   2. Contribution of different zooplankton groups in grazing on phytoplankton in shallow eutrophic Lake Võrtsjärv (Estonia)

      • H. Agasild, P. Zingel, I. Tõnno, J. Haberman, T. Nõges

      Pages 167-177

   3. Horizontal dynamics of Zooplankton in subtropical Lake Bianca (Uruguay) hosting multiple Zooplankton predators and aquatic plant refuges

      • Carlos Iglesias, Guillermo Goyenola, Nestor Mazzeo, Mariana Meerhoff, Elena Rodó, Erik Jeppesen

      Pages 179-189

   4. Functional response of Anodonta anatina feeding on a green alga and four strains of cyanobacteria, differing in shape, size and toxicity

      • Babette M. Bontés, Antonie M. Verschoor, L. Miguel Dionisio Pires, Ellen van Donk, Bas W. Ibelings

      Pages 191-204

   5. The role of herbivorous water birds in aquatic systems through interactions with aquatic macrophytes, with special reference to the Bewick’s Swan — Fennel Pondweed system

      • Marcel Klaassen, Bart A. Nolet

      Pages 205-213

which method/approach to take for the deter- nation of reference conditions is dependent on The estimation of reference conditions is crucial the condition of the sites available for a certain in any ecological assessment programme (e. g. lake type: (a) where undisturbed or nearly undis- Moss et al. , 1996). These provide the baseline turbed conditions prevail, a validated spatial from which to determine lake change with time, network is preferred; (b) if degraded conditions and are necessary to evaluate a lake’s current prevail then the preferred modelling approach status or potential for change. would be based on establishing a good relation- The most recent European water legislation, ship between stress and ecological response; (c) the water framework directive (WFD), prescribes expert judgement should be used as the last resort the assessment of ecological quality of surface and be accompanied by an acceptable validation waters using an ecological quality ratio (EQR). process. The EQR is de?ned as the ratio between the The TP status of a lake is mainly determined reference value and the observed value for a by its external nutrient supply. Phosphorus export given metric. from a catchment in an undisturbed area will As part of the assessment of ecological quality, depend on the natural fertility of the local rocks many European countries are choosing to devel- or glacial deposits, and the soils derived from op a quality classi?cation scheme for total ph- them.

• Biodiversity
• Eutrophication
• Sediment
• limnology
• nutrient load
• shallow lakes
• water quality

• NIOO/Centre of Limnology, Nieuwersluis, The Netherlands

  Ramesh D. Gulati, Ellen Donk

• RIZA, Lelystad, The Netherlands

  Eddy Lammens

• Department of Applied Ecology and Environmental Biology, Laboratory of Environmental Toxicology and Aquatic Ecology, Ghent University, Faculty of Bioscience Engineering, Gent, Belgium

  Niels Pauw

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