Assumed Amphi-Atlantic distribution of Oxyurella tenuicaudis (Cladocera, Chydoridae) denied by a new species from North America R. George MichaelDavid G. Frey OriginalPaper Pages: 3 - 35
Limnological effects of peatland drainage and fertilization as reflected in the varved sediment of a deep lake Heikki Simola OriginalPaper Pages: 43 - 57
Studies on predation of the mosquito Culex fatigans by Rana tigrina tadpoles M. Peter MarianM. S. M. ChristopherT. J. Pandian OriginalPaper Pages: 59 - 63
Chronic toxicity of three insecticides (carbaryl, fenthion and lindane) in the freshwater snail Lymnaea stagnalis Jacqueline SeugéRoger Bluzat OriginalPaper Pages: 65 - 72
New records of Adelodrilus (Oligochaeta, Tubificidae), with descriptions of two new species from the North-west Atlantic Christer Erséus OriginalPaper Pages: 73 - 83
