Preliminary Evaluation of the Use of Phosphogypsum for Reef Substrate. I. A Laboratory Study of Bioaccumulation of Radium and Six Heavy Metals in an Aquatic Food Chain
| Autor: | Shulin Chen, John W. Fleecer, Charles A. Wilson, Bin Sun, Ronald F. Malone, David L. Nieland |
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| Rok vydání: | 1998 |
| Předmět: |
animal structures
Ecology biology Palaemonetes vulgaris fungi Gulf killifish chemistry.chemical_element Environmental exposure biology.organism_classification Shrimp Radium Food chain chemistry Environmental chemistry Bioaccumulation General Earth and Planetary Sciences Environmental science Ecology Evolution Behavior and Systematics General Environmental Science Trophic level |
| Zdroj: | Chemistry and Ecology. 14:305-319 |
| ISSN: | 1029-0370 0275-7540 |
| DOI: | 10.1080/02757549808037611 |
| Popis: | Phosphogypsum (PG), a solid by-product of phosphoric acid production, contains radionuclides and trace metals in concentrations which may pose a potential hazard to human health and the environment. to investigate the possibility of bioaccumulation of radium and six heavy metals over time when aquatic organisms experience both trophic and environmental exposure to PG, we designed a laboratory experiment representing three levels of an aquatic food chain. During the 135 day experiment, a meiobenthic copepod species (Amphiascoides atopus) was cultured in the presence of PG. the copepods were subsequently fed to grass shrimp (Palaemonetes vulgaris and P. pugio) which were in turn fed to gulf killifish (Fundulus grandis); both the grass shrimp and the killifish also experienced an environmental PG exposure. Other than elevated radium levels in the experimental grass shrimp, the experiment demonstrated little effect of environmental or trophic exposure to PG on microinvertebrates, macroinvertebrates, ... |
| Databáze: | OpenAIRE |
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