New or rare species of Diacyclops Kiefer, 1927 (Copepoda, Cyclopoida) from different groundwater habitats in Italy Giuseppe L. PesceDiana P. Galassi OriginalPaper Pages: 103 - 114
Influence du lindane sur le métabolisme respiratoire d'Asellus aquaticus L. Relation concentration — perturbation Suzette le Bras OriginalPaper Pages: 115 - 122
Dynamique de la population de Truite commune (Salmo trutta) d'un ruisseau breton (France): les géniteurs sédentaires G. MaisseJ. L. BagliniereP. Y. Le Bail OriginalPaper Pages: 123 - 130
Elemental composition of the sub-aquatic liverwort Pellia endiviifolia (Dicks.) Dum. in relation to heavy metal contamination K. SatakeM. NishikawaK. Shibata OriginalPaper Pages: 131 - 136
Daily increments on the otoliths of larval and juvenile Coregonus spp., and their modification by environmental factors Reiner EckmannPeter Rey OriginalPaper Pages: 137 - 143
Mayfly production in a Colorado mountain stream: an assessment of methods for synchronous and non-synchronous species R. B. RaderJ. V. Ward OriginalPaper Pages: 145 - 150
Heavy metals in water, sediments, fish and plants of river Hindon, U.P., India Mohammad AjmalRaziuddinAhsan Ullah Khan OriginalPaper Pages: 151 - 157
Protozoan communities of the Flint River-Lake Blackshear ecosystem (Georgia, USA) J. R. PrattR. HorwitzJ. Cairns Jr. OriginalPaper Pages: 159 - 174
The lack of vertical migration in Daphnia: the effect of homogenously distributed food Joanna PijanowskaPiotr Dawidowicz OriginalPaper Pages: 175 - 181