Titlebook: Studies on Lake Vechten and Tjeukemeer, The Netherlands; 25th anniversary of R. D. Gulati,Dr S. Parma (Director) Book 1982 Dr W. Junk Publ

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SEVER

GLIDE

gnarled

Contribution of photosynthetic sulphur bacteria to primary production in Lake Vechten area of 4.7 ha, a maximum depth of 11.9 m and a mean depth of 6 m..Bacterial populations, appearing at the boundary layer of the oxidative and reductive zone from early June till late October, were composed of cyanobacteria, Chromatiaceae and green and brown coloured Chlorobiaceae. Predominating ge

countenance

heirloom

Structural and functional characteristics of epiphyton and epipelon in relation to their distributioerlands). On a weight basis, epiphyton was maximal in autumn and epipelon in summer. In winter the chemical composition of epiphyton and epipelon was similar. In summer the epiphyton had on a unit weight basis more organic matter and carbonate, and had per unit organic matter a higher algal number,

GUEER

HPA533

The zooplankton: its community structure, food and feeding, and role in the ecosystem of Lake Vechteo the functioning of the lake’s ecosystem. The .C-technique used in the grazing and assimilation study is discussed in detail with a critical analysis of the methodological errors..The three major species which contributed to the annual density, biomass and grazing maxima in spring are: .. and .. Th

圓桶

ng a country rich in water - at least in terms of surface area - and low-lying, problems related to water are as old as the nation itself. The problems in regard to water quality are becoming more acute and complicated due to the progressive rise in air and ground pollution. Glaring examples are the

我邪惡

Book 1982ry rich in water - at least in terms of surface area - and low-lying, problems related to water are as old as the nation itself. The problems in regard to water quality are becoming more acute and complicated due to the progressive rise in air and ground pollution. Glaring examples are the acid rain