Assessment of the Estuarine Hermaphroditic Fish Rivulus marmoratus as a Useful Euryhaline Species for Acute Toxicity Tests as Shown Using Cadmium
Assessment of the Estuarine Hermaphroditic Fish Rivulus marmoratus as a Useful Euryhaline Species for Acute Toxicity Tests as Shown Using Cadmium
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评估河口两性鱼 Rivulus marmoratus 作为有用的广盐物种用于急性毒性试验（如使用镉所示）
DOI：
10.1139/f94-029
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发表时间：
1994
影响因子：
2.4
通讯作者：
Hi
中科院分区：
文献类型：
--
作者：
E. Park;H.;W. N. Joo;H;Hi
河口两性硬骨鱼对镉的毒性很敏感，在10 盐度、25℃、pH 7.0时，不同生活期的96小时半数致死量(LC_(50))值均较低，为0.8~32.8‰mg Cd/L。温度越高、pH值越高、盐度越低，毒性越大。低剂量镉处理可提高成鱼对镉的耐受性，但当处理间隔时间超过4 d时，这种耐受性降低，鳃、肾小管是镉急性毒性效应的主要靶器官。这些结果表明，体型小、生理耐受性强、耐寒性强、易于繁殖的长尾轮虫可能被证明是一种有用的河口金属毒性研究的泛盐生模型。
The estuarine hermaphroditic teleost Rivulus marmoratus was sensitive to toxic effects of cadmium showing low 96-h LC50 values of 0.8–32.8 mg Cd/L for different life stages at 10‰ salinity, 25 °C, and pH 7.0. Toxicity was greater at higher temperatures, at higher pH, and at lower salinity. Tolerance to cadmium increased after pretreatment with a low dose of cadmium, but the effect decreased when intervals between pretreatment and challenge treatment were longer than 4 d. The gill lamellae and kidney tubules were the primary target organs for acute toxic effects of cadmium in adult fish. These results suggest that R. marmoratus, which is small, physiologically tolerant, hardy, and easy to breed, may prove to be a useful euryhaline model for estuarine metal toxicity studies.
影响因子：
3.8
作者：
DUDLEY, RE;SVOBODA, DJ;KLAASSEN, CD
通讯作者：
KLAASSEN, CD