Alona hercegovinae n. sp. (Cladocera: Chydoridae), a blind cave-inhabiting Cladoceran from Hercegovina (Yugoslavia) Anton Brancelj OriginalPaper Pages: 7 - 16
Occurrence of Cladocera (Crustacea) in subterranean waters in Yugoslavia Anton BranceljBoris Sket OriginalPaper Pages: 17 - 20
A new species of hemibranchiate sphaeromatid isopod of the genus Paracilicaea from Pakistan with the study of developmental stages of the male Waquar Javed OriginalPaper Pages: 21 - 28
The genus Testudinella (Eurotatoria : Gnesiotrocha : Testudinellidae) in North-Eastern India B. K. Sharma OriginalPaper Pages: 29 - 33
Drunella karia n. sp. a second species of the genus Drunella (Ephemeroptera, Ephemerellidae), from Turkey N. Kazancl OriginalPaper Pages: 35 - 42
Associations of aquatic insects (Ephemeroptera, Plecoptera, and Trichoptera) in a network of subarctic lakes and streams in Québec P. P. Harper OriginalPaper Pages: 43 - 64
Occurrence of limnic micro-crustaceans in relation to pH and humic content in Swedish water bodies Bruno BērzinšJan Bertilsson OriginalPaper Pages: 65 - 71
Nitrogen cycling in Louisiana Gulf Coast brackish marshes R. D. DeLauneW. H. Patrick Jr. OriginalPaper Pages: 73 - 79
Phytoplankton of Ogelube Lake, Opi, Anambra State, Nigeria S. BiswasN. O. Nweze OriginalPaper Pages: 81 - 86
Second announcement of International Symposium on The ecology of manggroves and related ecosystems September 24–30, 1990; Mombasa - Kenya Announcement Pages: i - ii
