TY - JOUR AU - Prowe, Friederike AU - Kirf, Mathias AU - Zauke, Gerd-Peter PY - 2006/06/30 Y2 - 2024/03/28 TI - Heavy metals in crustaceans from the Iberian deep sea plain JF - Scientia Marina JA - Sci. mar. VL - 70 IS - 2 SE - Articles DO - 10.3989/scimar.2006.70n2271 UR - https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/154 SP - 271-279 AB - <p align=justify>Trace metals (Cd, Cu, Pb and Zn) were analysed in different well-defined mixed copepod and euphausiid samples as well as in individually analysed decapods collected during a cruise on board “RV Walther Herwig III” to the Iberian Deep Sea Plain in March and April, 2002. We found a substantial interspecific heterogeneity with partially high mean Cd levels in the decapods: 1.9 mg kg<sup>-1</sup> dry weight in samples of the genus <em>Sergia</em>; 6.1 mg kg<sup>-1</sup> in <em>Acanthephyra pelagica</em> (Risso, 1816) and <em>Acanthephyra acanthithelsonis</em> Bate, 1888; 10.7 mg kg<sup>-1</sup> in Bentheogennema intermedia (Bate, 1888); 14.9 mg kg<sup>-1</sup> in Benthesicymus iridescens (Bate 1881) and 16.3 mg kg<sup>-1</sup> in <em>Systellaspis debilis </em>(A. Milne Edwards, 1881). The agreement of these high Cd concentrations with those reported for polar crustaceans, and Cu concentrations (17–56 mg kg-1) that indicate that the total metabolic requirements have probably not been met, support the hypothesis that the frequently reported Cd-anomaly in polar crustaceans might be extended to other relatively deep ocean waters like the Iberian Deep Sea Plain and that this might be related to a corresponding Cu deficiency. Zn concentrations in decapods from this study (52–80 mg kg<sup>-1</sup>) are within the worldwide range, which indicates that decapods are able to regulate their Zn body concentrations. Our preliminary data on mixed zooplankton samples suggest that Pb concentrations far below 1 mg Pb kg<sup>-1</sup> might serve as a regional background value for comparison in biomonitoring studies. Results for Cd, Cu and Zn are largely within the reported range, especially for data from the Central and Southern North Sea.</p> ER -