Reproductive cycle of vendace (Coregonus albula L.) in relation to some chemical and biochemical changes in the body Konrad R. Dabrowski OriginalPaper Pages: 3 - 15
Description of Barbronia assiuti n.sp. (Hirudinea) from Assiut, Egypt M. A. HusseinN. El-Shimy OriginalPaper Pages: 17 - 24
Identification of instars and species in some larval Polypedilum (Polypedilum) (Diptera: Chironomidae) Annelle R. SoponisConstance L. Russell OriginalPaper Pages: 25 - 32
The drift of zooplankton and microzoobenthos in the river Strandaelva, western Norway Odd Terje Sandlund OriginalPaper Pages: 33 - 48
The Cladocera of Sri Lanka (Ceylon), with remarks on some species R. RajapaksaC. H. Fernando OriginalPaper Pages: 49 - 69
Depth integrating samplers for use in limnocorrals K. R. SolomonK. SmithG. L. Stephenson OriginalPaper Pages: 71 - 75
A laboratory method for studying zooplankton swimming behaviors Claire BuchananBernard GoldbergRobert McCartney OriginalPaper Pages: 77 - 89
Dry weight loss and colonization of plant litter by macroinvertebrates: plant species and lake types compared Kjell DanellÅke Andersson OriginalPaper Pages: 91 - 96
Vertical nutrient and phytoplankton distribution in relation to physical stability Michael KarydisNikoletta Moschopoulou Notes Section Pages: 97 - 101