Jürgen Ritterhoff

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To assess the significance of metals in biota of the Barents Sea, preliminary information is presented for the concentrations of Cd, Pb, Hg, Ni, Cu and Zn in liver and muscle tissues of 15 marine fish species collected in the summer of 1994. Lead and Ni concentrations are below limits of detection (< 0.3 and 1.0 mg kg-1 dry wt.) in all tissues, as is Cd in(More)
Trace metals (Cd, Pb, Ni, Cu, Zn and Hg) were evaluated in 14 zooplankton taxa collected on cruise ARK IX/Ib of RV 'Polarstern' to the Fram Strait and the Greenland Sea in March and April 1993. We found a substantial interspecific heterogeneity, e.g. with rather low Cd concentrations in calanoid copepods (0.1-0.7 mg kg-1, dry wt.) but remarkably high levels(More)
 Semi-static toxicokinetic experiments were performed during a cruise of RV “Polarstern” to the Greenland Sea for Cd, Pb, Cu and Zn in mesozooplankton collectives of Calanus hyperboreus, C.  finmarchicus, Metridia longa and Themisto abyssorum, to provide first tentative information on accumulation strategies and the experimental basis for estimation of(More)
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