暴露于多环芳烃的 Cyclope neritea 和 Nassarius mutabilis 的行为毒性研究。
Behavioural toxicity studies of Cyclope neritea and Nassarius mutabilis exposed to polycyclic aromatic hydrocarbons.
机构信息
Department of Biology, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong.
History Department, Hong Kong Shue Yan University, North Point, Hong Kong.
出版信息
Environ Sci Pollut Res Int. 2020 Feb;27(6):6695-6700. doi: 10.1007/s11356-019-07250-z. Epub 2019 Dec 21.
The objective of the work was to study behavioural change of Cyclope neritea (sea snail) and Nassarius mutabilis (land snail) upon exposure to different levels of PAHs. Snail's behaviour was translated and expressed in Behavioural State Score (BSS) where the score ranged from "0" to "5" points refers to the ascending level of locomotion of a snail. A significant difference was found in snail's behaviour in 25.0 mg/L than in 0.5 mg/L with p value smaller than 0.01. BSS scores appear most frequent on the treatment and control group were 5 (61.5-64.5%) and 2 (41.0-45.0%), respectively. Intersex behaviour was found in all species (i.e. the same sex was grouped together) regardless of PAH concentrations. This is the first reported to study the behavioural change of snail sampled in Hong Kong area when exposed to PAHs. Further studies should be carried on the impact of snail's behaviour exposure on each congener in the family of PAHs.
本研究旨在探讨多环芳烃（PAHs）暴露水平对皱疤滨螺（Cyclope neritea，海蜗牛）和捻螺（Nassarius mutabilis，陆蜗牛）行为变化的影响。蜗牛的行为表现转化为行为状态评分（BSS），评分为 0 至 5 分，分数越高表示蜗牛的运动水平越高。研究发现，在 25.0 mg/L 的处理组中，蜗牛的行为与在 0.5 mg/L 浓度下的行为有显著差异（p 值小于 0.01）。处理组和对照组的 BSS 评分最常见的分别是 5 分（61.5-64.5%）和 2 分（41.0-45.0%）。所有研究物种（即同一性别聚集在一起）均出现了雌雄同体的间性行为，而与 PAH 浓度无关。这是首次报道研究香港地区蜗牛在暴露于 PAHs 时的行为变化。应进一步研究蜗牛暴露行为对 PAHs 家族中每个同系物的影响。
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