1971.(Mitteilgn.d.Internat.Vereinigung f.theoret.u. angewandte Limnologie,Bd.19).139 figs.7 plates.42 tabs.318 p.gr8vo. Paper bd.

Contents: Foreword/ LUND,J.W.G.: The seasonal periodicity of threeplanktonic desmids in Windermere/ TASSIGNY,M. and M.LEFEVRE: Auto-,heteroantagonisme et autres consequences des excretions d'algues d'eaudouce ou thermale/ SOEDER,C.J., H.MUELLER, H.PAYER and H.SCHULLE:Mineral nutrition of planktonic algae: Some considerations, some experiments/ PIECYNSKY,E.: Mass appearance of algae in the littoral of several Mazurian lakes/ ROUND,F.E.: The growth and succession ofalgal populations in freshwater/ UHLMANN,D.: Influence of dilution,sinking and grazing rate on phytoplankton populations of hyperfertilizedponds and micro-ecosystems/ PECHLANER,R.: Factors, that control theproduction rate and biomass of phytoplankton in high-mountain lakes/GIBSON,C.E., WOOD,R.B., E.L.DICKSON, D.H.JEWSON: The succession ofphytoplankton in L.Neagh 1968-1970/ MATHIESEN,H.: Summer maxima ofalgae and eutrophication/ FOGG,G.E. and A.E.WALSBY: Buoyancy regulationand the growth of planktonic blue-green algae/ MEFFERT,M.-E.: Cultivation and growth of two planktonic Oscillatoria species/ SHILO,M.:Biological agents which cause lysis of blue-green algae/ TALLING,J.F.:The underwater light climate as a controlling factor in the productionecology of freshwater phytoplankton/ BROOK,A.J., A.L.BAKER and A.R.KLEMER: The use of turbimetry in studies of the population dynamics ofphytoplankton populations with special reference to Oscillatoriaagardhii var. isothrix/ KRISTIANSEN,J.: Phytoplankton of two DanishLakes, with special reference to seasonal cycles of the nannoplankton/BERMAN,T. and W.RODHE: Distribution and migration of Peridinium inLake Kinneret/ SERRUYA,C. and U.POLLINGHER: An attempt at forecastingthe Peridinium bloom in Lake Kinneret (Lake Tiberias)/ TASSIGNY,M.:Action du calcium sur la croissance de Desmidiees axeniques/ Appendix:LUND,J.W.G.: The FRITSCH collection of illustrations of freshwateralgae/ General discussion.