Habits and relative population densities of some hydrophilids in California rice fields Frank G. ZalomAlbert A. GrigarickMichael O. Way OriginalPaper Pages: 195 - 200
Some ecological aspects of Lake Qarun, Fayoum, Egypt. Part II. Production of plankton and benthic organisms S. A. Abdel-MalekM. M. Ishak OriginalPaper Pages: 201 - 208
La production primaire des eaux du golfe San Jose (Peninsule Valdes, Argentine). I. Parametres physiques et teneurs en sels mineraux L. J. CharpyC. J. Charpy-RoubaudM. J. Pizarro OriginalPaper Pages: 209 - 214
La production primaire des eaux du golfe San Jose. II. Populations phytoplanctoniques et composition du seston L. J. CharpyC. J. Charpy-Roubaud OriginalPaper Pages: 215 - 224
La production primaire des eaux du golfe San Jose (Peninsule Valdes, Argentine). III. Estimation de la production phytoplanctonique annuelle L. J. CharpyC. J. Charpy-Roubaud OriginalPaper Pages: 225 - 229
Growth characteristics of the heterotrophic bacterial population of water and bottom sediments in tanks under different trophic conditions B. B. JanaG. N. PatelU. K. De OriginalPaper Pages: 231 - 239
Nutrient translocation from green algal symbionts to the freshwater sponge Ephydatia fluviatilis Clive R. Wilkinson OriginalPaper Pages: 241 - 250
Invertebrate drift lost to the sea during low flow conditions in a small coastal stream in Western Canada D. Dudley Williams OriginalPaper Pages: 251 - 254
Studies on predation on mosquito larvae by the fish macropodus cupanus S. MathayanJ. MuthukrishnanG. A. Heleenal OriginalPaper Pages: 255 - 258
Pollution effects on the phytoplankton-zooplankton relationships in an inshore environment Maria Moraïtou-ApostolopoulouLydia Ignatiades OriginalPaper Pages: 259 - 266
Role of the lateral lobes in the control of certain physiological and biochemical processes in Bulinus truncatus (Gastropoda, Pulmonata) A. M. MohamedW. P. M. Geraerts OriginalPaper Pages: 267 - 271
Observations on some common parasites of Bagrus docmac Forskahl (pisces: siluroidea) of lake Victoria Godfrey B. Mbahinzireki OriginalPaper Pages: 273 - 280
Thermoregulatory behavior of juvenile cromileptes altivelis (serranidae), a tropical marine fish William Wallace ReynoldsMartha Elizabeth Casterlin OriginalPaper Pages: 281 - 282
Studies on osmotic balance and its control in the freshwater mollusc parreysia corrugata V. S. LomteS. N. Barhanpurkar OriginalPaper Pages: 283 - 285