Copper, cadmium and zinc concentrations in oceanic amphipod and euphausiid crustaceans, as a source of heavy metals to pelagic seabirds
✍ Scribed by P. S. Rainbow
- Publisher
- Springer-Verlag
- Year
- 1989
- Tongue
- English
- Weight
- 615 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0025-3162
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✦ Synopsis
Heavy metal concentrations (especially Cu, Cd and Zn) have been measured in oceanic hyperiid amphipods (Themisto gaudichaudii and T. compressa) and euphausiids (Meganyctiphanes norvegica and Euphausia superba), collected in the Antarctic and Atlantic Oceans. In some cases, metal concentrations displayed size-dependencies which were allowed for in interspecific or intersite comparisons, which often showed intraspecific geographical differences not attributable to anthropogenic effects. Cadmium concentrations in Themisto species are high in comparison with those of other oceanic crustaceans and may represent significant sources of cadmium in the diets of particular seabirds.
sured in two Antarctic populations of T. gaudichaudii and an Atlantic population of T. compressa, as part of a wider study of the biology of essential and non-essential heavy metals in oceanic crustaceans (Ridout et al. 1985, 1989, White and Rainbow 1987). Body heavy-metal concentrations in Themisto spp. are compared with those of two common pelagic euphausiids (Meganyctiphanes norvegica and Euphausia superba), confirming that cadmium concentrations in the amphipods are extremely high, body concentrations of copper and zinc being more typical of oceanic crustaceans.
Nomenclature of Themisto species follows Schneppenheim and Weigmann-Haass (1986), who also synonymized the name Parathemisto (among others) with Themisto.