The white-spotted jellyfish, Phyllorhiza punctata, is native to the West Pacific, but after hitching a ride in cargo ships’ ballasts has become a powerful invasive species elsewhere in the world. Capable of filtering up to 50000 liters of seawater per day, the jellyfish consumes plankton that native species need for sustenance and can grow as large as 70cm wide. This specimen was photographed in San Francisco’s Aquarium of the Bay under an ultra-violet source. You can learn more about how the world’s coral reefs are changing and adapting in vedphoto’s upcoming Reactive Reefs exhibition at www.vedphoto.com/reactive-reefs