Mercury concentration in the sediment at different gold prospecting sites along the Carmo stream, Minas Gerais, Brazil, and frequency of resistant bacteria in the respective aquatic communities L. CursinoS. M. OberdáA. M. A. Nascimento OriginalPaper Pages: 5 - 12
Factors related to autotrophic potamoplankton, heterotrophic protists and micrometazoan abundance, at two sites in a lowland temperate river during low water flow Nicole LairVéronique JacquetPatricia Reyes-Marchant OriginalPaper Pages: 13 - 28
Shifts in postembryonic somatic ploidy levels in Daphnia pulex Margaret J. BeatonPaul D. N. Hebert OriginalPaper Pages: 29 - 39
Temporal and spatial variability in streams of a pampean basin Claudia S. FeijoóAdonis GiorgiFernando Momo OriginalPaper Pages: 41 - 52
Effects of intermittent halogenation on settlement, survival and growth of the zebra mussel, Dreissena polymorpha Joseph R. BidwellDonald S. CherryLarry A. Lyons OriginalPaper Pages: 53 - 62
Fauna vs flora contribution to the leaf epiphytes biomass in a Posidonia oceanica seagrass bed (Revellata Bay, Corsica) Gilles LepointStéphane HavelangeJean-Marie Bouquegneau OriginalPaper Pages: 63 - 67
The response of benthic algae to manipulations of light in four acidic lakes in northern Michigan. Robert W. PillsburyRex L. Lowe OriginalPaper Pages: 69 - 81
Patterns in invertebrate and periphyton size distributions from navigation buoys in the St. Lawrence River Vincent MercierChantal VisChristiane Hudon OriginalPaper Pages: 83 - 91
Long-term phytoplankton changes in acid and limed lakes in SW Sweden Einar Hörnström OriginalPaper Pages: 93 - 102
Metal content in Enteromorpha linza (Linnaeus) in Thermaikos Gulf (Greece) P. MaleaS. Haritonidis OriginalPaper Pages: 103 - 112
The free-living nematodes of a temperate, high energy, sandy beach: faunal composition and variation over space and time W. L. NicholasM. Hodda OriginalPaper Pages: 113 - 127
In situ measurement of productivity and respiration in aquatic systems by a new box incubation method Swapan C. DebKazuo MatsushigeNoriatsu Ozaki OriginalPaper Pages: 129 - 144
Redescription of Heliodiaptomus elegans Kiefer, 1935, a rare south-east Asian calanoid copepod Y. Ranga ReddyHenri J. Dumont OriginalPaper Pages: 145 - 152
Assessment of the long-term effectiveness of sediment dredging to reduce benthic phosphorus release in shallow Lake Müggelsee (Germany) Andreas KleebergJohannes-Günter Kohl OriginalPaper Pages: 153 - 161
Comparison of intraspecific genetic variability in four common cyprinids, Abramis brama, Abramis bjoerkna, Rutilus rutilus and Scardinius erythrophthalmus, within and between lowland river systems Christian Wolter OriginalPaper Pages: 163 - 177
Larval development, emergence and seasonal regulation in Asiagomphus pryeri (Selys) (Odonata: Gomphidae) Takashi Aoki OriginalPaper Pages: 179 - 192
Seasonal occurrence of juvenile prawn and environmental factors in a Rhizophora mangal, southeast coast of India N. RajendranK. Kathiresan OriginalPaper Pages: 193 - 200
The effects of chlorpyrifos on cholinesterase activity and foraging behavior in the dragonfly, Anax junius (Odonata) Sandra K. BrewerGary J. Atchison OriginalPaper Pages: 201 - 208
Performance of some diversity and biotic indices in rivers affected by coal mining in northwestern Spain F. García-CriadoA. ToméC. Antolín OriginalPaper Pages: 209 - 217
The restoration of Lake Apopka in relation to alternative stable states Roger W. BachmannMark V. HoyerDaniel E. Canfield Jr. OriginalPaper Pages: 219 - 232
Ecological effects of the mass occurrence of the Ponto–Caspian invader, Hemimysis anomala G.O. Sars, 1907 (Crustacea: Mysidacea), in a freshwater storage reservoir in the Netherlands, with notes on its autecology and new records Henk A. M. KetelaarsFrancien E. Lambregts-van de ClundertWim Hoogenboezem OriginalPaper Pages: 233 - 248
Morphological abnormalities of Acartia lilljeborgi (Copepoda, Crustacea) in the Espírito Santo Bay (E.S. Brazil). Cristina de Oliveira Dias OriginalPaper Pages: 249 - 251
