Titlebook: Lake Verevi, Estonia - A Highly Stratified Hypertrophic Lake; Ingmar Ott,Toomas K?iv Book 2005 Springer Science+Business Media B.V. 2005 V

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Primary production of phytoplankton in a strongly stratified temperate lake,species in summer and autumn, while photosynthesizing sulphur bacteria can occur massively in the metalimnion. Primary production (PP) and chlorophyll a concentration (Chl .) were seasonally studied in 1991, 1993, 2000, and 2001. Vertical distribution of PP was rather complex, having usually two pea

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Resource ratios and phytoplankton species composition in a strongly stratified lake,vi (surface 12.6 ha, mean depth 3.6 m, maximum depth 11 m) is a hypertrophic hard-water lake, where the so-called spring meromixis occurs due to an extremely warm spring. Most dissolved nutrients in the epilimnion were low already in spring, and their concentrations were quite stable during the stud

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Vertical distribution of zooplankton in a strongly stratified hypertrophic lake,during 1998–2001. The zooplankton of Lake Verevi is characteristic of hypertrophic lakes, with a small number of dominant species, rotifers being the main ones, and juveniles prevailing among copepods. In 1999–2001, the average abundance of metazooplankton in the lake was 1570 × 10. ind m.; in the e

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Diel migration and spatial distribution of fish in a small stratified lake,ke Verevi (Estonia, 12.6 ha, max. depth 11 m, hard-water, deoxygenated hypolimnion) in August 2001 and July 2002. Considering abundance, two-thirds of the total fish moved to the littoral zone. The biomass of fish was distributed evenly between the littoral and pelagic zones, where the topmost epili

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