Effect of diesel fuel hydrocarbons and cadmium on the development of sea urchin progeny

摘要: The long-term keeping of sea urchins the genus Strongylocentrotus in a water with sublethal concentrations diesel fuel hydrocarbons (0.04-0.3 mg/l) or cadmium (0.001, 0.05, 0.1 and 1 on progeny development was studied. Sea S. nudus are more resistant against than intermedius. effects intermedius proved to be similar. both toxicants were most distinct at gastrula stage: archenteron formation delayed. Hydrocarbons exerted toxic by following criteria: decrease size larvae, asynchrony delay frequency defects.