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  • 1
    Publication Date: 2022-05-31
    Description: In static toxicity tests, the effects of HgCl2 and of an organic mercury complex on the mortality of Neomysis integer and Pomatoschistus microps were determined under various temperature and salinity conditions. Definite species-specific differences with respect to combined temperature, salinity and mercury effects were found. The toxicity of the organic mercury complex exceeded that of HgCl2 by a factor of 20 in the case of N. integer, and by a factor of 30 in the case of P. microps. By means of continuous respiration and activity measurements on N. integer (the more sensitive species) under organo-mercury contamination at different environmental conditions (temperature, salinity and pO2), reproducible sublethal concentrations were determined. For this species, a direct relationship was found between mercury contamination levels, increase in activity, and oxygen uptake.
    Type: Article , NonPeerReviewed
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  • 2
    Publication Date: 2022-05-31
    Description: On the occasion of the celebrations of the 50th year of existence of the biological station at Hiddensee (1982), the 150th jubilee year of the Zoological Institute of the Ernst-Moritz-Arndt-University in Greifswald (1986), and the 25th year of existence of an independent marine biological research and training facility at the University of Rostock (1985), a short overview is given of the development of biological science in the Baltic Sea in the Hither Pomerania and Mecklenburg region. It will become clear that the initiative for brackish water research arose at the University of Greifswald, with algological studies concentrated at Hiddensee and zoological-ecological work in Greifswald itself. Effective and successful marine biological research and teaching at the University of Rostock started with the establishment of the Department of Marine Biology (1960), where university marine biological activities are now concentrated as a result of the university reform (1968).
    Type: Article , NonPeerReviewed
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