Periphyton in the Volta Lake. I. Seasonal changes on the trunks of flooded trees E. K. Obeng-AsamoaD. M. JohnH. N. Appler OriginalPaper 01 January 1981 Pages: 191 - 200
Occurrence, distribution and seasonal periodicity of some aquatic fungi of Sat-Tal (Nainital), India G. S. MerS. C. SatiR. D. Khulbe OriginalPaper 01 January 1981 Pages: 201 - 205
Periphyton in the Volta Lake. II. Seasonal changes on wooden blocks with depth D. M. JohnE. K. Obeng-AsamoaH. N. Appler OriginalPaper 01 January 1981 Pages: 207 - 215
Relations entre le benthos, la derive, le rythme alimentaire et le taux de consommation de truites communes (S. trutta L.) en canal experimental A. Neveu OriginalPaper 01 January 1981 Pages: 217 - 228
Influence de la concentration en ions H2PO4 − du milieu sur la croissance et la composition minerale de deux characees René Strauss OriginalPaper 01 January 1981 Pages: 229 - 232
The influence of flatworm predation on zooplankton inhabiting small ponds Edward J. MalyStephen SchoenholtzMichael T. Arts OriginalPaper 01 January 1981 Pages: 233 - 240
Toxicite a long terme d'un insecticide organophosphore (fenthion) chez le mollusque Lymnaea stagnalis L. Jacqueline SeugéRoger Bluzat OriginalPaper 01 January 1981 Pages: 241 - 248
Contributions to the Rotifer fauna of Panjab State, India. I. Family Brachionidae B. K. Sharma OriginalPaper 01 January 1981 Pages: 249 - 253
Changes in flora down a stream showing a zinc gradient P. J. SayB. A. Whitton OriginalPaper 01 January 1981 Pages: 255 - 262
Decomposition and microbial colonization of leaves in a stream modified by coal ash effluent Anne M. ForbesJohn J. Magnuson OriginalPaper 01 January 1981 Pages: 263 - 267
Fresh water chytrids from Varanasi (India). III. Some new records R. DayalUsha Kirin OriginalPaper 01 January 1981 Pages: 269 - 273