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Clownfish reproduction threatened by artificial light


The Disney movie Finding Nemo could have a much darker sequel – as artificial light in coral reefs leaves the famous fish unable to reproduce offspring, according to a new study.

Results from a new study by Flinders University and the University of Melbourne published in Biology Letters show an increasing amount of artificial light at night (ALAN) in coral reefs, even at relatively low levels, masks natural cues which trigger clownfish eggs to hatch after dusk.

Lead author Dr Emily Fobert, Research Associate in biodiversity and conservation, says test eggs that were incubated in the presence of artificial light had a zero success rate of hatching, with no offspring surviving as a result. MORE

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