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	Provedor de dados OMA (2) Autor Heip, C.H.R. (2) Vanderhaeghen, R. (2) Vranken, G. (2) Van Brussel, D. (1) Palavra-chave 1880 (2) Cadmium Estuarine organisms Heavy metals Lethal effects Marine organisms Mortality Toxicity Toxicity tests Monhystera disjuncta Monhystera microphtalma de Man (1) Toxicity tests Monhystera disjuncta Monhystera microphtalma de Man (1) Tipo do documento Info:eu-repo/semantics/article (2) Ano 1985 (1) 1984 (1) País Belgium (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Research on the development of a standardized ecotoxicological test on marine nematodes: 1. Culturing conditions and criteria for two monhysterids, <i>Monhystera disjuncta</i> and <i>Monhystera microphthalma</i> OMA 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 Toxicity of cadmium to free-living marine and brackish water nematodes (<i>Monhystera microphthalma, Monhystera disjuncta, Pellioditis marina</i>) OMA Vranken, G.; Vanderhaeghen, R.; Heip, C.H.R.. Cadmium toxicity to 3 marine and brackish-water nematodes (<i>Monhystera microphthalma, M. disjuncta, Pellioditis marina</i>) was estimated under static tests. These nematodes are very resistant to cadmium poisoning. LC 50 values are extremely time-dependent; an exposure time of 96 h underestimates the degree of toxicity. For <i>M. disjuncta</i> LC 50 values were 21.1 and 18.4 ppm after 192 and 264 h respectively. <i>P. marina</i> was much more tolerant to cadmium in comparison with the monhysterids and had LC 50 values of 90.5 ppm at 120, and of 77.0 ppm at 192 h. It is argued that MEC values based on mortality and on a developmental assay in which success in attaining the adult stage was studied, turned out to be very... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cadmium Estuarine organisms Heavy metals Lethal effects Marine organisms Mortality Toxicity Toxicity tests Monhystera disjuncta Monhystera microphtalma de Man; 1880. Ano: 1985 URL: http://www.vliz.be/imisdocs/publications/299058.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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