Oncholaimus sahariensis sp.n. (Nematoda) from the Algerian Sahara A. CoomansJ. Heyns OriginalPaper Pages: 193 - 201
The responses of lake waters to organic matter additions John HarteDonald Levy OriginalPaper Pages: 203 - 212
Phytoplankton as a factor in the decline of the submersed macrophyte Myriophyllum spicatum L. in Lake Wingra, Wisconsin, U.S.A. R. Christian JonesKurt WaltiMichael S. Adams OriginalPaper Pages: 213 - 219
Determination of growth-limiting nutrients for red species of Oscillatoria and two ‘oligotrophic’ diatoms Øivind Løvstad OriginalPaper Pages: 221 - 230
Root and rhizome distribution as an indicator of upper salt marsh wetland limits Denise M. Seliskar OriginalPaper Pages: 231 - 236
Role of algae in the diet of Chironomus plumosus F. semireductus from the Bay of Quinte, Lake Ontario Ora E. JohannssonJanet L. Beaver OriginalPaper Pages: 237 - 247
Spatial and temporal variation in the summer zooplankton community of a riverine reservoir Stephen T. Threlkeld OriginalPaper Pages: 249 - 254
The attachment of the ephippium of Acantholeberis curvirostris O. F. Müller (Cladocera: Macrothricidae) Peter Frenzel OriginalPaper Pages: 255 - 259
Effects of artificial freshets on substratum composition, benthic invertebrate fauna and invertebrate drift in two impounded rivers in mid-Wales J. ScullionA. Sinton OriginalPaper Pages: 261 - 269
The effects of low concentrations of particulates from paper mill effluent on the macroinvertebrate community of a fast-flowing stream David T. MayackJ. S. Waterhouse OriginalPaper Pages: 271 - 282
