Heavy metal concentrations and size effects in the mesopelagic decapod crustacean Systeilaspis debilis

Abstract

Specimens of the oceanic decapod crustacean SysteUaspis debilis from the NE Atlantic were analysed for whole body concentrations of Cu, Zn, Fe, Mn and Cd. Concentrations of Zn, Fe, Mn and Cd decreased with increasing dry weight; Cu concentrations increased. Theoretical metabolic requirements for Zn, Mn and Fe in a decapod crustacean were estimated and are closely matched by the concentrations measured in S, debihs. The low copper concentrations may be explained by a low body content of haemocyanin.