Otolith fluctuating asymmetry in larval trout, Oncorhynchus mykiss Walbaum, as an indication of organism bilateral instability affected by static and alternating magnetic fields.,Science of the Total Environment

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Otolith fluctuating asymmetry in larval trout, Oncorhynchus mykiss Walbaum, as an indication of organism bilateral instability affected by static and alternating magnetic fields.
Science of the Total Environment ( IF 8.2 ) Pub Date : 2019-11-12 , DOI: 10.1016/j.scitotenv.2019.135489
D P Fey ₁ , M Greszkiewicz ₁ , M Jakubowska ₁ , A M Lejk ₂ , Z Otremba ₃ , E Andrulewicz ₁ , B Urban-Malinga ₁

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The possible effects of disruptions in the geomagnetic field caused by different man-made constructions have been increasing considerably in recent years. These include, among others, the development of wind farms located in the sea and increased numbers of underwater cables. The objective of this study was to determine whether a magnetic field (MF) of 10 mT or a 50 Hz electromagnetic field (EMF) of 1 mT affected the developmental instability of the inner ear organ, which is responsible in fish for hearing and balance, in rainbow trout (Oncorhynchus mykiss) reared in a laboratory for 37 days (13 days in egg stage and 24 days in larval stage). This was done by analyzing the fluctuating asymmetry (FA) of otolith size. The MF and EMF values applied in this study are those recorded in the vicinities of underwater alternating current (AC) and direct current (DC) cables, respectively. The influence of MF on otolith FA was found to be statistically significant, with the highest significance occurring in the group of youngest larvae of 5 dph (compared to larvae 15 and 23 dph). Otolith FA was also higher in larvae exposed to the EMF compared to control conditions, but the differences were not statistically significant. Thus, we can conclude that underwater constructions and cables which emit a MF of 10 mT or higher can affect living organisms that are within a distance of a few meters, especially those (as in the case of trout) in settled life stages.

中文翻译：

幼体鳟鱼Oncorhynchus mykiss Walbaum的耳石起伏不对称，表明受静磁场和交变磁场影响的生物体双侧不稳定性。

近年来，由不同的人造结构引起的地磁场干扰的可能影响已大大增加。其中包括开发海上风电场和增加水下电缆的数量。这项研究的目的是确定10 mT的磁场（MF）或1 mT的50 Hz电磁场（EMF）是否影响内耳器官的发育不稳定，内耳器官负责鱼类的听力和平衡，虹鳟鱼（Oncorhynchus mykiss）在实验室中饲养了37天（卵期为13天，幼体期为24天）。这是通过分析耳石尺寸的波动不对称（FA）来完成的。在这项研究中应用的MF和EMF值分别记录在水下交流（AC）和直流（DC）电缆附近。发现MF对耳石FA的影响具有统计学意义，其中最显着的发生在5 dph（与15 dph和23 dph的幼虫相比）中的最年轻的幼虫中。与对照相比，暴露于EMF的幼虫的耳石FA含量也更高，但差异无统计学意义。因此，我们可以得出结论，发出10 mT或更高的MF的水下结构和电缆会影响几米范围内的生物，特别是在定居阶段的生物（例如鳟鱼）。在5 dph（与15 dph和23 dph的幼虫相比）中最年轻的幼虫中具有最高的重要性。与对照相比，暴露于EMF的幼虫的耳石FA含量也更高，但差异无统计学意义。因此，我们可以得出结论，发出10 mT或更高MF的水下结构和电缆会影响几米范围内的生物，特别是在定居生命阶段的生物（例如鳟鱼）。在5 dph（与15 dph和23 dph的幼虫相比）中最年轻的幼虫中具有最高的重要性。与对照相比，暴露于EMF的幼虫的耳石FA含量也更高，但差异无统计学意义。因此，我们可以得出结论，发出10 mT或更高MF的水下结构和电缆会影响几米范围内的生物，特别是在定居生命阶段的生物（例如鳟鱼）。

更新日期：2019-11-13

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