1. Phytoplankton Assemblages and Their Dominant Pigments in the Nervion River Estuary

   • Sergio Seoane
   • Aitor Laza
   • Emma Orive

   Primary Research Paper Pages: 1 - 13

2. Phoretic Behaviour of Bromeliad Annelids (Dero) and Ostracods (Elpidium) using Frogs and Lizards as Dispersal Vectors

   • Luiz Carlos Serramo Lopez
   • Bruno Filizola
   • Ricardo Iglesias Rios

   Primary Research Paper Pages: 15 - 22

3. On the Importance of Water Depth, Macrophytes and Fish in Wetland Picocyanobacteria Regulation

   • David G. Angeler
   • Salvador Sánchez-Carrillo
   • Miguel Alvarez-Cobelas

   Primary Research Paper Pages: 23 - 32

4. Remarkable Salinity Tolerance of Seven Species of Naked Amoebae (gymnamoebae)

   • Gwen Hauer
   • Andrew Rogerson

   Primary Research Paper Pages: 33 - 42

5. Impact of Macrozoobenthos on Two-Dimensional Small-Scale Heterogeneity of Pore Water Phosphorus Concentrations: in-situ Study in Lake Arendsee (Germany)

   • Jörg Lewandowski
   • Mareike Schadach
   • Michael Hupfer

   Primary Research Paper Pages: 43 - 55

6. Testing for the Effects of Seasonal and Lunar Periodicity on the Reproduction of the Edible Sea Urchin Tripneustes gratilla (L) in Kenyan Coral Reef Lagoons

   • Nyawira A. Muthiga

   Primary Research Paper Pages: 57 - 64

7. An Approach to Assessing Hydrological Influences on Feeding Opportunities of Juvenile Atlantic Salmon (Salmo salar): A Case Study of Two Contrasting years in a Small, Nursery Stream

   • D Tetzlaff
   • C Soulsby
   • A.F Youngson

   Primary Research Paper Pages: 65 - 77

8. Respiration Rate of Stream Insects Measured in situ Along a Large Altitude Range

   • Stig Rostgaard
   • Dean Jacobsen

   Primary Research Paper Pages: 79 - 98

9. The Effect of Fish Introductions on the Diatom and Cladoceran Communities of Lake Opeongo, Ontario, Canada

   • J.-M. St. Jacques
   • M.S.V. Douglas
   • C.P. Gubala

   Primary Research Paper Pages: 99 - 113

10. First Year Ontogenetic Diet Patterns in Two Coexisting Sander Species, S. lucioperca and S. volgensis in Lake Balaton

    • András Specziár

    Primary Research Paper Pages: 115 - 130

11. Distribution of Chironomidae (Insecta: Diptera) Head Capsules in Recent Sediments of Canadian Arctic Lakes

    • K. Gajewski
    • G. Bouchard
    • L.C. Cwynar

    Primary Research Paper Pages: 131 - 143

12. Changes in Coral Reef Communities and an Associated Reef Fish Species, Cephalopholis cruentata (Lacépède), After 30 years on Curaçao (Netherlands Antilles)

    • I. Nagelkerken
    • K. Vermonden
    • W.P. Nagelkerken

    Primary Research Paper Pages: 145 - 154

13. Foraging of a Small Planktivore (Pseudorasbora parva: Cyprinidae) and its Behavioral Flexibility in an Artificial Stream

    • Sunardi
    • Takashi Asaeda
    • Jagath Manatunge

    Primary Research Paper Pages: 155 - 166

14. Dynamics of Fine Particulate Organic Matter (FPOM) and Macroinvertebrates in Natural and Artificial Leaf Packs

    • Anja Hoffmann

    Primary Research Paper Pages: 167 - 178

15. Effect of Permanent Shading on Adult Size and Biomass of the Caddisfly Lype phaeopa (Stephens, 1836) (Psychomyiidae)

    • Bernd Spänhoff

    Primary Research Paper Pages: 179 - 186

16. Competitive Interactions between the Australian Native Fish Galaxias maculatus and the Exotic Mosquitofish Gambusia holbrooki,in a Series of Laboratory Experiments

    • Alistair Becker
    • Laurie J.B. Laurenson
    • Dane M. Newman

    Primary Research Paper Pages: 187 - 196

17. The Role of Salinity in Structuring Fish Assemblages in a Prairie Stream System

    • Christopher L. Higgins
    • Gene R. Wilde

    Primary Research Paper Pages: 197 - 203

18. Effects of Deposited Sediment on Patch Selection by two Grazing Stream Invertebrates

    • Alastair M. Suren

    Primary Research Paper Pages: 205 - 218

19. Role of Life History Strategy in the Colonisation of Western Australian Aquatic Systems by the Introduced Crayfish Cherax destructor Clark, 1936

    • Stephen Beatty
    • David Morgan
    • Howard Gill

    Primary Research Paper Pages: 219 - 237

20. Morphological Differentiation Between Geographically Separated Populations of Neomysis integer and Mesopodopsis slabberi (Crustacea, Mysida)

    • Thomas Remerie
    • Tine Bourgois
    • Ann Vanreusel

    Primary Research Paper Pages: 239 - 250

21. Food and Feeding Habits of Flounder Paralichthys Orbignyanus (Jenyns, 1842) in Bahía Blanca Estuary, Argentina

    • A. Lopez Cazorla
    • S. Forte

    Primary Research Paper Pages: 251 - 257

22. Direct and Indirect Effects of Solar Ultraviolet Radiation on Attached Bacteria and Algae in Lotic Systems

    • Yoshikuni Hodoki

    Primary Research Paper Pages: 259 - 266

23. Long-Term Changes in the Invertebrates Associated with the Litter of Phragmites australis in a Managed Reedbed

    • Alan P. Bedford
    • Ian Powell

    Primary Research Paper Pages: 267 - 285

24. Fluctuating Selection, Egg Banks and Population Genetic Structure in Cyclically Parthenogenetic Species

    • Lars M. Berg

    Primary Research Paper Pages: 287 - 295

25. Relative Uptake of Urea and Ammonium by Dinoflagellates or Cyanobacteria in Shrimp Mesocosms

    • Michele A. Burford

    Short Research Note Pages: 297 - 303