Chemical pollution of aquatic environments has been increasing in recent times, causing great damage to the ecosystems and to the fishery sector. Pollutants can negatively alter an animals’ life, and in this investigation, we verify if a neutral household detergent, one of the most common aquatic pollutants, causes changes in the behaviour and personality of guppy (Poecilia reticulata). Thirty milligrams per litre of detergent was added to the water of two aquariums and the behaviour of eight adult guppies were recorded using focal method with instantaneous recording of behaviours every 15 s, for 30 min daily. Results showed that the detergent modified the behaviour and the personality of guppies, making them shier and more inactive. Thus, more efficient disposal techniques should be applied or developed to avoid the pollution of aquatic environments.

中文翻译：

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中性家用洗涤剂对孔雀鱼网纹幼虫行为和性格的影响（Peters，1859年）（Osteichthyes：Poeciliidae）

近年来，水生环境的化学污染不断增加，对生态系统和渔业造成了巨大破坏。污染物会负面影响动物的生活，在这项调查中，我们验证了最常见的水生污染物之一中性家用洗涤剂是否会导致孔雀鱼行为和性格的改变（Poecilia reticulata）。将30毫克每升洗涤剂添加到两个水族馆的水中，并采用聚焦法记录八只成年孔雀鱼的行为，并每15 s瞬时记录一次行为，每天30分钟。结果表明，去污剂改变了孔雀鱼的行为和性格，使它们发抖并且更加不活跃。因此，应采用或开发更有效的处置技术，以避免污染水生环境。