Occurrence of species of the genusDaphnia in Brazil T. Matsumura-Tundisi OriginalPaper Pages: 161 - 165
The plankton community of an acid blackwater South Carolina power plant impoundment Michael A. Mallin OriginalPaper Pages: 167 - 177
Reproductive biology of four large riverine fishes (Cyprinidae) in a man-made lake, Orange River, South Africa T. TómassonJ. A. CambrayP. B. N. Jackson OriginalPaper Pages: 179 - 195
Ecological assessment of finfish as indicators of habitats in the Gulf of Nicoya, Costa Rica Charles E. BartelsKent S. PriceWilliam A. Bussing OriginalPaper Pages: 197 - 207
Latitudinal range of epiplanktonic chaetognatha and ostracoda in the western tropical Indian Ocean Vijayalakshmi R. NairM. Madhupratap OriginalPaper Pages: 209 - 216
The mortality effect of ultraviolet radiation in a translucent and in a red morph ofAcanthodiaptomus denticornis (Crustacea, Copepoda) and its possible ecological relevance J. RingelbergA. L. KeyserB. J. G. Flik OriginalPaper Pages: 217 - 222
Emergence of some caddisflies (Trichoptera) from a wooded stream in southern Ontario M. P. SinghS. M. SmithA. D. Harrison OriginalPaper Pages: 223 - 232