Evaluation of cadmium, copper, zinc, and iron concentrations and tissue distributions in the benthic crab, Dorippe granulata (De Haan, 1841) from Tolo Harbour, Hong Kong

M. H. Depledge, T. L. Forbes, V. E. Forbes

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Abstract

The distributions of copper, zinc, iron, and cadmium among the tissues of Dorippe granulata were determined. The highest copper concentrations were found in the haemolymph (c. 53 μg ml-1) while the highest iron concentrations occurred in the gills (c. 720 μg g-1 dry weight) and the highest zinc concentrations in the exoskeleton (c. 200 μg g-1 dry weight). By comparison, concentrations of the non-essential metal, cadmium, were low in all tissues (mean = 10 μg g-1 dry weight). The highest value was recorded from the midgut gland of a female crab (18·5 μg Cd g-1 dry weight). Concentrations of copper, zinc, and iron were positively correlated with tissue-hydration levels. Such a relationship was not found for cadmium. The findings are discussed with regard to trace-metal levels found in temperate and tropical brachyurans from clean and polluted localities.

Original languageEnglish (US)
Pages (from-to)15-19
Number of pages5
JournalEnvironmental Pollution
Volume81
Issue number1
DOIs
StatePublished - 1993

Bibliographical note

Funding Information:
We are grateful to Lene Hau for technical assistance. TLF and VEF were funded from grants awarded to MHD by the Danish Science Council (SNF) and the Carlsberg Foundation.

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