Effects on sea urchin fertilization and embryogenesis of water and sediment from two rivers in Campania, Italy

The toxicities of water and sediment from 10 sampling sites on the Sarno and Volturno rivers were assessed by effect of dilutions on the developing embryos and sperm of sea urchins. The waters were diluted 100-10,000 times in seawater and the solid phases tested at 2-10 mg per litre suspensions in s...

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Bibliographic Details
Published in:Archives of environmental contamination and toxicology 1993-07, Vol.25 (1), p.20-26
Main Authors: PAGANO, G, ANSELMI, B, DINNEL, P. A, ESPOSITO, A, GUIDA, M, IACCARINO, M, MELLUSO, G, PASCALE, M, TRIEFF, N. M
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Fresh water environment
Fundamental and applied biological sciences. Psychology
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Summary:The toxicities of water and sediment from 10 sampling sites on the Sarno and Volturno rivers were assessed by effect of dilutions on the developing embryos and sperm of sea urchins. The waters were diluted 100-10,000 times in seawater and the solid phases tested at 2-10 mg per litre suspensions in seawater. Exposed sperm was used for fertilization; toxicity was estimated by fertilization success and embryo quality. Neither test was significant with the water samples, but results were clear-cut for the sediments. The most polluted sediments caused 87 per cent developmental arrest in embryos. The sediments were also spermiotoxic although this decreased if the samples has been frozen. No relation between grain size and toxicity was discerned.
ISSN:0090-4341
1432-0703
DOI:10.1007/BF00230706