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首页> 外文期刊>Environmental toxicology and chemistry >ACUTE LETHAL AND TERATOGENIC EFFECTS OF TRIBUTYLTIN CHLORIDE AND COPPER CHLORIDE ON MAHI MAHI (CORYPHAENA HIPPURUS) EGGS AND LARVAE
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ACUTE LETHAL AND TERATOGENIC EFFECTS OF TRIBUTYLTIN CHLORIDE AND COPPER CHLORIDE ON MAHI MAHI (CORYPHAENA HIPPURUS) EGGS AND LARVAE

机译：氯化三丁基锡和氯化铜对ON鱼卵和幼虫的急性致死和致畸作用

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摘要

Acute and chronic bioassays were used to evaluate the lethal and sublethal effects of copper chloride and tributyltin chloride on mahi mahi (Coryphaena hippurus) embryos, a pelagic life stage often found in the surface microlayer where anthropogenic contaminants can accumulate. Acute bioassay testing determined the median lethal concentration (LC50) for the test organism after 48 h of exposure. Chronic toxicity tests were used to determine the measurement of sublethal parameters, such as developmental abnormalities after 72-h exposures to the toxicants. Embryos were collected 4 h postfertilization and subsequently exposed to 1, 5, 25, 50, and 100 μg/L of copper chloride and 3, 10, 20, 30, and 50 μg/L of tributyltin chloride. Analysis of hatch rate percentage determined that the mean 48-h LC50 of copper chloride and tributyltin chloride was 32.8 and 16.7 μg/L, respectively, based on the pooled data of four experiments with four replicates for each metal. Consistent abnormalities, such as yolk sac swelling, spinal deformities, and decreased hatch rates, were observed for each metal. Teratogenic responses to copper chloride and tributyltin chloride demonstrate the need to investigate further the impacts of pollution in the open oceans to a species indigenous to, and commercially important to, the Florida (USA) coasts. This information could then lead to the future development of a surface microlayer bioassay using mahi mahi embryos.
机译：急性和慢性生物测定法用于评估氯化铜和氯化三丁基锡对on鱼（Machy mahi，Coryphaena hippurus）胚胎的致死作用和致死作用，这通常是在表层微层中存在的浮游生命阶段，人为污染物可在此积聚。急性生物测定测试确定了暴露48小时后被测生物的平均致死浓度（LC50）。慢性毒性测试用于确定亚致死参数，例如暴露于有毒物质72小时后的发育异常。受精后4小时收集胚胎，然后将其暴露于1、5、25、50和100μg/ L的氯化铜和3、10、20、30和50μg/ L的氯化三丁基锡。孵化率百分比的分析确定了氯化铜和氯化三丁基锡的48小时平均LC50分别为32.8和16.7μg/ L，这是基于四个实验的汇总数据，每种金属进行了四次重复。每种金属均观察到一致的异常现象，如卵黄囊肿胀，脊柱畸形和孵化率降低。对氯化铜和氯化三丁基锡的致畸反应表明，有必要进一步研究公海中污染对佛罗里达州（美国）沿海地区固有的商业上重要物种的影响。然后，这些信息可能会导致使用mahi mahi胚胎的表面微层生物测定的未来发展。

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