Light penetration in lakes
Light conditions were studied in six lakes of the Danube Delta for a period of 2 years and were described as a function of 12 independent variables forming a data matrix with more than sample units. The influence of mineral particles was insignificant. Equations are produced here for the relationship to water turbulence, wind intensity and lake depth. Unable to display preview.
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Lake Ecology -- Light
Light In Lakes Light drives photosynthesis and warms the water, as well as the air that makes the wind that mixes the water. The input of light is at he base of lake dynamics. The latter is the fate of most light in lakes. Roy G. Biv has it all backwards!
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Lakes: Biological Processes
Figure 1. Different lake zones in reference to available sunlight. Transparency is how easily light can pass through a substance. In lakes this means how deep sunlight penetrates through the water. Plants and algae need sunlight to grow, so they are only able to grow in areas of lakes where the sun penetrates.
Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Light penetration measurements of blue Schott filter BG 12 , green VG 9 , and red RG light was made in 30 Finnish lakes with different degree of humus content and eutrophy for the comparison of the structure of phytoplankton communities and the light environment in the waters. The relations between Secchi disc visibility and the penetrations of different spectral regions and relations between the light conditions and the colour of the water was examined. The optical depth was especially in brown waters smaller than calculated by Formula after Talling