Department of Biological and Environmental Sciences, P. O. Box 65, 00014, University of Helsinki, Finland.
J Fish Biol. 2009 Jul;74(10):2401-8. doi: 10.1111/j.1095-8649.2009.02255.x.
Historical catch records of Atlantic salmon Salmo salar from three rivers discharging to the Baltic Sea in an area free from tides and from strong effects of the moon on illumination were analysed to investigate whether timing of S. salar river entry was associated with lunar cycles directly. Although a significant effect of lunar phase on river entry was detected, with more fish entering rivers around the full moon than other phases, the effect of the lunar cycle was very small compared with other sources of variation. Hence, the biological role of lunar cycle as a determinant of the timing of S. salar runs in the investigated populations was negligible, suggesting that lunar cycle per se does not play a role in the timing of S. salar river entry.
对三个流入无潮区且不受月球光照强烈影响的波罗的海的河流中的大西洋鲑（Salmo salar）的历史捕捞记录进行了分析，以调查鲑鱼进入河流的时间是否与月球周期直接相关。尽管检测到月球相位对河流进入有显著影响，即满月时进入河流的鱼比其他相位多，但与其他变异源相比，月球周期的影响非常小。因此，在调查的种群中，作为鲑鱼洄游时间决定因素的月球周期的生物学作用可以忽略不计，这表明月球周期本身在鲑鱼进入河流的时间上没有起到作用。
