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Moonlight drives marine creatures in Arctic winter
In the absence of any sunlight, it is the moonlight that drives the migrations of tiny marine animals through the permanently dark and frigid Artic winter, an interesting study says. According to the researchers, Zooplankton, which are the tiny animals found near the surface in aquatic environments keep moving during the Artic winter.
​London: In the absence of any sunlight, it is the moonlight that drives the migrations of tiny marine animals through the permanently dark and frigid Artic winter, an interesting study says. According to the researchers, Zooplankton, which are the tiny animals found near the surface in aquatic environments keep moving during the Artic winter.
The migrations take place when the moon rises above the horizon, the findings showed. The researchers explained that the behaviour is most likely an attempt by zooplankton to avoid predators hunting by the moonlight.
"During the permanently dark and extremely cold Arctic winter, (these) tiny marine creatures, like mythical werewolves, respond to moonlight by undergoing mass migrations," said one of the researchers Kim Last from Scottish Association for Marine Science in Scotland.
The findings have implications for the carbon cycle, which is particularly important in light of climate change. Further investigation also showed that the marine creatures follow the 24.8-hour lunar day, instead of the 24-hour solar day.
