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학술저널
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환경독성보건학회 Environmental Analysis Health and Toxicology 환경독성학회지 제24권 제1호
발행연도
2009.3
수록면
25 - 32 (8page)

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Toxicity of ocean dumping wastes (dye waste, urban sewage, food waste) were examined by observing fertilization and embryo development rates of the Sea Urchin, Strongylocentrotus nudus. Spawning was induced by injecting 1 ml, of 0.5 M KCl into coelomic cavity. Males released white or cream-colored sperms and females released yellow or orange-colored eggs. Experiments were began within 30 min after the collection of both gametes. The fertilization and embryo development rates tests were performed for 10 min and 48 h after fertilization, respectively. The fertilization and embryo development rates in the control condition (not including ocean dumping wastes sludge elutriate) were greater than 90%, but markedly decreased with increasing concentrations of ocean dumping waste sludge elutriate. The fertilization and normal embryogenesis rates were significantly inhibited in all waste sludge elutriate from dye waste (EC??=5.76; EC??=4.53), urban sewage (EC??=9.82; EC??=9.67) and food waste (EC??=3.90; EC??=3.27), respectively. The NOEC (>3.13%) and LOEC(3.13%) of fertiliztion and normal embryogenesis rates very similar in all waste sludge elutriate.
These results suggest biological assay using the fertilization and embryo development rates of S. nudus are very useful test method for the ecological toxicity assessment of ocean dumping wastes.

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UCI(KEPA) : I410-ECN-0101-2009-539-019521263