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| Vranken, G.; Van Brussel, D.; Vanderhaeghen, R.; Heip, C.H.R.. |
| The brackish-water nematodes <i>Monhystera disjuncta</i> and <i>Monhystera microphtalma</i> were chosen as test organisms for ecotoxicological studies. Both species are locally abundant, have short life cycles and can be maintained for several generations under laboratory conditions. They reproduce very well on a sloppy bacto-agar (0.5-0.8%) made up with water of the natural habitat, enriched with 1% Vlasblom medium (Vlasblom, pers. commun.) and 1% silicium (15g.l<sup>-1</sup>), reaching densities of approximately 1000 individuals.cm<sup>-2</sup>. Starting from such agnotobiotic cultures, a chemically defined artificial medium has been developed. This medium consists of 0.5% bacto-agar in artificial seawater,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxicity tests Monhystera disjuncta Monhystera microphtalma de Man; 1880. |
| Ano: 1984 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3276 |
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| Vranken, G.; Vanderhaeghen, R.; Van Brussel, D.; Heip, C.H.R.; Hermans, D.. |
| The influence of the mercury compounds Hg<sub>2</sub>Cl<sub>2</sub>, HgCl<sub>2</sub>, and CH<sub>3</sub>HgCl as measured by egg mortality, preadult mortality, and development time, was studied on the marine nematode <i>Monhystera disjuncta</i>. A significant influence on egg, juvenile, and preadult mortality was observed for Hg<sub>2</sub>Cl<sub>2</sub> and HgCl<sub>2</sub>, while CH<sub>3</sub>HgCl did not cause egg mortality. It was concluded that the juvenile mortality is the most sensitive index for the chronic stress. No apparent changes in the development time occurred. The acute toxicity of the above mentioned mercury compounds, measured as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mercury; Toxicity; Monhystera disjuncta. |
| Ano: 1984 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3277 |
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