โ Scribed by H. W. Nie
No coin nor oath required. For personal study only.
The influence of thermal discharge from a 640 MW steam electric power station on the Bergumermeer (shallow, eutrophic lake) was investigated . The temperature of the thermal effluent did not exceed 30 ยฐ C . The lake was sampled extensively from 1975 to 1978 . Zooplankton densities at different depths in the heated and non-heated parts of the lake were compared . A vital staining technique was used to assess entrainment mortality of cladocerans . The entrainment mortalities for the most abundant cladocerans were only 2 to 3% but for Leptodora kindtii 19% and about 25% for Diaphanosoma brachyurum, Ceriodaphnia pulchella and the cyclopoid nauplii . The ecological consequences for the lake ecosystem are discussed . Geographical position 53ยฐ 12N ; 6ยฐ02'W Elevation Area 0 .5 m below sea level 4 .64 km 2 Volume 6 .0 X 106 m3 Max . length 3 .5 km Max width 1 .9 km Mean depth 1 .3 m Max . depth 3 .5 m Shore length 16 .4 km (dam included)
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