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Trace metals in herring from the southern Baltic, 1983

Spurenelemente im Hering aus der südlichen Ostsee, 1983

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Zusammenfasung

Die Konzentrationen von Cadmium, Blei, Kupfer, Zink, Eisen, Mangan und Nickel wurden in den Geweben von 187 Heringen (Clupea harengus), in verschiedenen Regionen der südlichen Ostsee mit Netz gefangen, bestimmt. Als Meßmethode wurde die Atomabsorptions-Spektrometrie verwendet. Die mittleren Werte, bezogen auf das Frischgewicht, waren: 0,009 mg/kg Cd, 0,079 mg/kg Pb, 0,49 mg/kg Cu, 9,2 mg/kg Zn, 9,9 mg/kg Fe, 0,19 mg/kg Mn und 0,10 mg/kg Ni. Es wurden Differenzen in der Konzentration der Spurenelemente, zu denen aus verschiedener Herkunft gesammelten, beobachtet. Der mittlere Gehalt von Cadmium und Blei lag unter den empfohlenen Toleranzen von 0,05–2,0 mg/kg und 0,5–2,0 mg/kg. Eine kleine Zahl der Heringe enthielt Cadmium in Konzentrationen über 0,05 mg/kg. Die Ergebnisse wurden mit den vorangegangenen und denen anderer Autoren verglichen.

Summary

The cadmium, lead, copper, zinc, iron, manganese and nickel concentrations have been determined in muscle tissue of 187 herring (Clupea harengus) netted in different regions in the southern part of the Baltic Sea. The method of measurement was atomic-absorption spectrophotometry. The mean values obtained related to wet weight (mg/kg) for herring muscle tissue were: 0.009 Cd, 0.079 Pb, 0.49 Cu, 9.2 Zn, 9.9 Fe, 0.19 Mn and 0.10 Ni. Some differences in the concentration of particular trace metals between herring stocks sampled have been observed. The mean content of cadmium and lead in muscles of herring examined were below recommended tolerance levels of 0.05–2.0 and 0.5–2.0 mg/kg, respectively. A small number of herring contained cadmium in their muscles at a concentration above 0.05 mg/kg. The results are compared with values reported previously for Baltic herring by other authors.

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Partially with financial support under grant PR-4 (Sea Fisheries Institute)

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Falandysz, J. Trace metals in herring from the southern Baltic, 1983. Z Lebensm Unters Forch 182, 36–39 (1986). https://doi.org/10.1007/BF01079889

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  • DOI: https://doi.org/10.1007/BF01079889

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