This paper deals with the effect of photobiomodulation (PBM) on Daphnia magna S. and their sensitivity to cadmium sulfate, a known high toxic pollutant. In a first series of experiments, the effect of different He‐Ne laser fluences irradiation (range 0.9‐4300 mJ cm−2) on the fertility of both parent and filial generations (F1–F3) of the crustacean was studied. It was found that PBM in some cases significantly influenced the fertility of both irradiated crustaceans and their nonirradiated offspring. By selecting two fluences (9 ± 2 mJ cm−2 reducing fertility and 4.3 ± 0.9 J cm−2 increasing it), the effect of these on toxicity of cadmium sulfate was evaluated. These experiments have shown that prior irradiation with low‐intensity light of a helium–neon laser with 632.8 nm wavelength can change the sensitivity of aquatic organisms to toxin cadmium sulfate. The degree and direction of changes depend on the toxicant concentration and the irradiation dose.

中文翻译：

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光生物调节对大水蚤及其毒物敏感性的影响

本文讨论了光生物调节 (PBM) 对大水蚤的影响及其对硫酸镉（一种已知的高毒性污染物）的敏感性。在第一系列实验中，研究了不同 He-Ne 激光能量密度辐照（范围 0.9-4300 mJ cm-2）对甲壳类动物亲代和后代（F1-F3）生育力的影响。发现在某些情况下，PBM 显着影响受辐照甲壳类动物及其未受辐照后代的生育能力。通过选择两个通量（9 ± 2 mJ cm-2 降低生育力和 4.3 ± 0.9 J cm-2 增加它），评估了这些对硫酸镉毒性的影响。这些实验表明，事先用 632 氦氖激光的低强度光照射。8nm波长可以改变水生生物对毒素硫酸镉的敏感性。变化的程度和方向取决于毒物浓度和辐照剂量。