Kocaeli's Kandıra coast turns turquoise due to natural algal bloom

The coastal areas of Kandıra, a district in Kocaeli, have transformed into a vibrant turquoise, creating a picturesque scene. This striking color change has drawn attention, prompting explanations from scientific experts.

Professor Dr. Halim Aytekin Ergül from Kocaeli University's Biology Department explained that the phenomenon is caused by a significant increase in Coccolithophores, a type of microscopic organism with calcium carbonate shells. The specific species, 'Emiliania huxleyi,' is common in the Black Sea and thrives in late spring and early summer when conditions like wind and nutrient availability are favorable.

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Seasonal increases in this excessive algal bloom have no known harm. They usually decrease and disappear within a few weeks as air temperatures rise further. This situation is completely natural and a known phenomenon.

Ergül assured that this seasonal bloom of algae is natural and poses no known harm. He noted that these blooms typically fade away within a few weeks as air temperatures rise. However, he cautioned that if the process were to extend unusually long, it could potentially disrupt the ecosystem by altering water alkalinity and reducing oxygen levels, particularly in deeper waters, necessitating continued observation.

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If the process were to extend in an unusual way, it could cause changes in the water's alkalinity and a decrease in oxygen, especially in deep areas, thus disrupting the ecosystem balance. Therefore, it needs to be monitored.