EFFECTS OF COPPER ON GAMMARUS-PSEUDOLIMNAEUS, PHYSA-INTEGRA, AND CAMPELOMA-DECISUM IN SOFT WATER
EFFECTS OF COPPER ON GAMMARUS-PSEUDOLIMNAEUS, PHYSA-INTEGRA, AND CAMPELOMA-DECISUM IN SOFT WATER
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DOI：
10.1139/f70-149
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发表时间：
1970-01-01
期刊：
影响因子：
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通讯作者：
LEONARD, EN
中科院分区：
文献类型：
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作者：
ARTHUR, JW;LEONARD, EN
三个无脊椎动物物种进行了急性（96小时），然后在连续流生物测定条件下的长期（6周）铜暴露。存活、生长、繁殖和摄食是用于测量毒性效应的反应。96小时平均中位耐受极限（TLm）值为驼背，完整囊泡，和Gammarus pseudolimnaeus分别为1.7，0.039，和0.020毫克/升总铜。 暴露6周后，所有三个物种的总铜浓度在8.0和14.8 μg/L之间没有影响。 从第二个6周的研究中获得的新孵化的端足类动物暴露于铜另外9周，并且仅在铜浓度≤ 4.6 μg/L时才生长到成虫阶段。 当铜浓度在12.9 ~ 6.2 μg/L之间时，5周后孵化的伽马存活率显著降低。
Three invertebrate species were subjected to acute (96-hr), followed by long-term (6-week) copper exposures under continuous-flow bioassay conditions. Survival, growth, reproduction, and feeding were the responses used for measuring toxicant effects. The average 96-hr median tolerance limits (TLm) values forCampeloma decisum,Physa integra, andGammarus pseudolimnaeuswere 1.7, 0.039, and 0.020 mg/liter total copper, respectively. The total copper concentration having no effect after 6 weeks exposure for all three species was between 8.0 and 14.8 μg/liter. The newly hatched amphipods obtained from the second 6-week study were exposed to copper for 9 additional weeks, and grew to the adult stage only in copper concentrations ≤ 4.6 μg/liter. After 5 weeks exposure to a water system, survival of newly hatchedGammaruswas markedly reduced when copper concentrations were between 12.9 and 6.2 μg/liter.