An ecological study of the rare rotifer species Trochosphaera solstitialis (Thorpe 1893) and the first report of the male Jack D. McCulloughRobert D. Lee OriginalPaper Pages: 7 - 18
The use of algal assays and chlorophyll concentrations to determine fertility of water in small impoundments in West Virginia James DavisJohn Decosta OriginalPaper Pages: 19 - 34
The influx of carbon into Lake Kinneret in 1971/1972 by Jordan zooplankton Moshe Gophen OriginalPaper Pages: 47 - 50
Diel variations of selected physico-chemical parameters in Lake Kissimmee, Florida Craig W. DyeDouglas A. JonesJennifer L. Gernert OriginalPaper Pages: 51 - 60
Eutrophication of the salt valley reservoirs, 1968–73 I. The effects of eutrophication on standing crop and composition of phytoplankton Gary L. Hergenrader OriginalPaper Pages: 61 - 82
Reproductive ecology of the marine pulmonate, onchidium verruculatum U. D. DeshpandeR. NagabhushanamM. M. Hanumante OriginalPaper Pages: 83 - 85
Effets du rubidium et du césium sur la croissance et la nutrition minerale des characees René Strauss OriginalPaper Pages: 87 - 93
Chemical composition of labile fractions in DOM Masahiro OchiaiTakuo NakajimaTakahisa Hanya OriginalPaper Pages: 95 - 97
Coexistence of perlid stoneflies (plecoptera): Predictions from multivariate morphometrics Andrew L. Sheldon OriginalPaper Pages: 99 - 105
Inorganic transformation of applied phosphorus in brackishwater fish pond soil under different water salinity levels G. N. ChattopadhyayL. N. Mandal OriginalPaper Pages: 125 - 130
Action competitive d'helisoma duryi, wetherby (Planorbidae : Helisomatinae) a l'egard de divers mollusques vecteurs de trematodoses humaines et animales. I. Biomphalaria glabrata, say M. GraberJ. EuzebyJ. Gevrey OriginalPaper Pages: 131 - 135
Limnological characteristics of several lakes on the Lake Wales Ridge, South-Central Florida Wayne F. McDiffett OriginalPaper Pages: 137 - 145
Impact of encrusting carbonates on manganese, zinc and copper concentrations of two vascular hydrophytes from Texas Lucille M. KellyArthur J. Ehlmann OriginalPaper Pages: 147 - 154
Resource division by perlid stoneflies (Plecoptera) in a lake outlet ecosystem Andrew L. Sheldon OriginalPaper Pages: 155 - 161
Action competitive d'Helisoma duryi, wetherby (Planorbidae: Helisomatinae) a l'egard de divers mollusques vecteurs de trematodoses humaines et animales. II. Biomphalaria pfeifferi, krauss, Bulinus truncatus sericinus, jickeli et limnea natalensis, krauss M. GraberJ. EuzebyJ. Gevrey OriginalPaper Pages: 163 - 167
Experience with a simple method for the biological evaluation of surface water quality Th. G. N. DresscherH. van der Mark OriginalPaper Pages: 169 - 173
Studies on the oxygen consumption of a tropical intertidal limpet Cellana radiata (Born): Effect of body size and tidal rhythm M. Balaparameswara Rao OriginalPaper Pages: 175 - 179
Accurate and efficient estimation of benthic populations: A comparison between removal estimation and conventional sampling techniques Frank Louis CarleO. Eugene Maughan OriginalPaper Pages: 181 - 187
