Abstract
AbstractThe lake without any outlet (11 ha, 55000 m3, zmax 2,25 m) has a weak thermal stratification with maximum surface temperatures of 32.5 °C. The annual variation of temperature and depth of visibility is unimodal, with the maxima or minima in August. Phytoplankton consists mainly of Cyanophyceae. The primary production determined by the light‐dark bottle technique (oxygen method) varies in the annual variation between 0.3… 0.5 g m−2 d−1 C (winter) and 3.4… 4.6 g m−2 d−1 C (summer); as the annual means of 1975 and 1976 there were found 1.9 and 2.4 g m−2 d−1 C, resp., gross production at a utilization of 0.42… 2.85% of the radiation energy. The chemism is a well‐buffered hydrogen‐carbonate water (pH 8.1… 9.0) with 74… 90 mg/1 Na and 20.5… 31.5 mg/1 K and with a good nutrient supply (20… 40 μg/1 PO4—P and 100… 240 μg/1 NO3—N) at the same time.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
