The sea water in the Bay of Peter the Great in Primorye acquired orange color in some places because of the mass blooming of microalgae noctiluca, as Interfax reports.

      “The orange bloom is due to the mass development of the planktonic algae noctiluca, its name means it shines at night. This bloom is celebrated annually, but usually it is not so noticeable” - the Senior Researcher of the Institute of Marine Biology of the Far-Eastern Department of RAS Tatiana Orlova, the Head of the Centre for Monitoring of Harmful Microalgae of Far-Eastern seas, reported. “The orange tide” this year is celebrated in different parts of the Bay of Peter the Great, in the South of Primorye.

      “The bloom of noctiluca is non-toxic, there is no danger for people. But in some cases it may cause allergy. However, any strong bloom of algae may affect the ecosystem in the future, dying algae may result in a shortage of oxygen in the sea water in the future” - Orlova said. Experts explain such a massive and long bloom of nocticluca this year by the fact that the prevailing weather is warm, with calm sea and the wind bringing the microalgae to the shore.