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Copper, zinc and cadmium in benthic organisms from the Java Sea and estuarine and coastal areas around East Java
Everaarts, J.M.; Boon, J.P.; Kastoro, W.; Fischer, C.V.; Razak, H.; Sumanta, I. (1989). Copper, zinc and cadmium in benthic organisms from the Java Sea and estuarine and coastal areas around East Java. Neth. J. Sea Res. 23(4): 415-426
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer
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| Auteurs | | Top |
- Everaarts, J.M.
- Boon, J.P.
- Kastoro, W.
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- Fischer, C.V.
- Razak, H.
- Sumanta, I.
|
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| Abstract |
A study was made of the concentrations of copper, zinc and cadmium in benthic organisms, representing the phyla Mollusca, Arthropoda, Echinodermata and Pisces, from the riverine and estuarine areas of the rivers Brantas and Solo (East Java) and the adjacent coastal area. Moreover, an assessment was made of the contamination of the benthic biota with these elements in the Java Sea and Bali Sea. Benthic organisms show a species-specific uptake pattern for each element. Compared to the same type of animals from estuaries and coastal areas in temperate regions of western Europe, the concentrations of cadmium are considerably higher, while copper and zinc concentrations are somewhat lower. There is no general trend in concentration levels of the metals in specimens from rivers, estuaries, coastal zone and open sea. In some groups of organisms (e.g. shrimp, starfish) the concentrations of copper and zinc are highest in specimens from rivers and estuaries. In contrast, cadmium concentration levels in e.g. crab, shrimp and squid are lowest in riverine and estuarine areas. Significant differences in metal concentrations in these organisms were found between the dry monsoon period (July, August) and the beginning of the wet monsoon (November, December). No relationship existed between the metal concentration of the organisms and the silt fraction of the sediment (grain size < 63 µm) or the bulk sediment. |
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