A Pair of Cadmium-exposed Zebrafish Affect Boldness and Landmark use in the Un-exposed Majority.
A Pair of Cadmium-exposed Zebrafish Affect Boldness and Landmark use in the Un-exposed Majority.
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一对暴露于镉的斑马鱼会影响大多数未暴露于镉的斑马鱼的胆量和地标性使用。
DOI：
10.1101/2023.11.09.566440
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Martins,EmíliaP
中科院分区：
文献类型：
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作者：
Shelton,DeliaS;Suriyampola,PiyumikaS;Dinges,ZoeM;Glaholt,StephenP;Shaw,JosephR;Martins,EmíliaP
有些个体对群体反应有不成比例的影响。这些个体可能具有与其他人不同的独特属性。这些特征可能包括对镉等污染物的易感性，镉是一种存在于水和食物中的强效微量金属。在这里，我们测试了一对镉暴露的个体是否会对未暴露的大多数人的行为产生影响。我们使用行为评估来表征镉暴露对群体胆量、凝聚力、活动和对地标的反应的影响程度。我们发现，一对接触镉的鱼比一对用未污染的水处理的鱼（对照组）更接近并保持更接近新的刺激和地标。含有镉的鱼群和经过水处理的鱼群表现出相似的凝聚力和活力水平。结果表明，鱼类急性暴露于与环境相关的镉浓度会对未暴露的大多数人产生深远的影响。
Some individuals have a disproportionate effect on group responses. These individuals may possess distinct attributes that differentiate them from others. These characteristics may include susceptibility to contaminant exposure such as cadmium, a potent trace metal present in water and food. Here, we tested whether a pair of cadmium-exposed individuals could exert an impact on the behavior of the unexposed majority. We used behavioral assessments to characterize the extent of the effects of the cadmium-exposed pair on group boldness, cohesion, activity and responses to landmarks. We found that groups with a pair of cadmium-exposed fish approached and remained closer to novel stimuli and landmarks than did groups with pairs of fish treated with uncontaminated water (control). Shoals with cadmium and water treated fish exhibited similar levels of cohesion and activity. The results suggest that fish acutely exposed to environmentally-relevant cadmium concentrations can have profound effects on the un-exposed majority.