The Vth International Symposium on Inland Saline Lakes was held at Hotel Titikaka on the shores of that lake, 22--29 March 1991 with participants from 16 countries. Twenty-three papers presented by the participants, plus an additional one reporting a microcosm study on salinity effects, constitute the present volume. The papers cover the wide array of subject matters and scales characteristic of our `interdiscipline' and represent the symposium well.
All manuscripts submitted for these proceedings were critically reviewed by at least three referees and are representative of saline lake research, developed around the world in the three-year period since the last symposium.

Inhalt
Large saline lakes of former USSR: a summary review.- Mongolian salt lakes: some features of their geography, thermal patterns, chemistry and biology.- Chinese saline lakes.- The major ion chemistry of some southern African saline systems.- Formation of manganese oxyhydroxides on the Dead Sea coast by alteration of Mn-enriched carbonates.- Morphology, distribution, and preservation potential of microbial mats in the hydromagnesite-magnesite playas of the Cariboo Plateau, British Columbia, Canada.- Effects of microbial activity on the hydrochemistry and sedimentology of Lake Logipi, Kenya.- Physico-chemical characteristics of a permanent Spanish hypersaline lake: La Salada de Chiprana (NE Spain).- The Dead Sea an economic resource for 10 000 years.- Quaternary and recent Lamprothamnium groves (Charophyta) from Argentina.- Dunaliella salina from saline environments of the central coast of Peru.- Effects of NaCl and KNO3 concentrations on the abscisic acid content of Dunaliella sp. (Chlorophyta).- Spatial heterogeneity of macrophytes in Lake Gallocanta (Aragón, NE Spain).- The importance of nitrogen in Pyramid Lake (Nevada, USA), a saline, desert lake.- A population model for the alkali fly at Mono Lake: depth distribution and changing habitat availability.- Salinity tolerance of the copepod Apocyclops dengizicus (Lepeschkin, 1900) a key food chain organism in the Salton Sea, California.- Seasonal change in a saline temporary lake (Fuente de Piedra, southern Spain).- The fauna of athalassic saline waters in Australia and the Altiplano of South America: comparisons and historical perspectives.- The penetration of cladocerans into saline waters.- Zooplankton associations in East African lakes spanning a wide salinity range.- Benthic invertebrates of some saline lakes ofthe Sud Lipez region, Bolivia.- Saline lakes of the Paroo, inland New South Wales, Australia.- Conservation of salt lakes.- Microcosm analysis of salinity effects on coastal lagoon plankton assemblages.