25th anniversary of the Limnological Institute of the Royal Netherlands Academy of Arts and Sciences
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Köp båda 2 för 3285 krThe twenty-fifth anniversary of the Limnological Institute, The Netherlands (19571982).- One: Lake Vechten.- Lake Vechten: aspects of its morphometry, climate, hydrology and physico-chemical characteristics.- The phytoplankton species composition and the seasonal periodicity in Lake Vechten from 1956 to 1979.- The primary production of phytoplankton in Lake Vechten.- Contribution of photosynthetic sulphur bacteria to primary production in Lake Vechten.- The aquatic macrophytes of Lake Vechten. Species composition, spatial distribution and production.- Structural and functional characteristics of epiphyton and epipelon in relation to their distribution in Lake Vechten.- Macro-invertebrate communities associated with the macrophytes of Lake Vechten: structural and functional relationships.- The zooplankton: its community structure, food and feeding, and role in the ecosystem of Lake Vechten.- Sedimentation and breakdown kinetics of organic matter in the anaerobic zone of Lake Vechten.- Aspects of aerobic mineralization during spring in Lake Vechten with special reference to the 14C-labelling technique.- Nitrogen cycle of Lake Vechten: concentration patterns and internal mass-balance.- Two: Tjeukemeer.- Hydrology of Tjeukemeer.- Physico-chemical environment in Tjeukemeer with special reference to speciation of algal nutrients.- The algal periodicity in Tjeukemeer during 19681978.- Population dynamics and production of Daphnia hyalina Leydig and Daphnia cucullata Sars in Tjeukemeer.- Population dynamics and production of Acanthocyclops robustus (Sars) and Mesocyclops leuckarti (Claus) in Tjeukemeer.- INSTAR, a discrete event model for simulating zooplankton population dynamics.- Distribution and production of the larval chironomid populations in Tjeukemeer.- A note onthe significance of larger bivalve molluscs (Anodonta spp. and Dreissena sp.) in the food of the eel (Anguilla anguilla) in Tjeukemeer.- Growth, condition and gonad development of bream (Abramis brama L.) in relation to its feeding conditions in Tjeukemeer.- The relations between 0+ fish density, zooplankton size and the vulnerability of pikeperch, Stizostedion lucioperca, to angling in the Frisian lakes.- Three: Miscellaneous.- Effects of thermal effluents from the Bergum Power Station on the zooplankton in the Bergumermeer.- Effects of entrapment and cooling water discharge by the Bergum Power Station on 0+ fish in the Bergumermeer.- Temporal and spatial variations of dissolved oxygen concentrations in some Dutch polder ditches.