[theold]

The main "culprit" of these changes is, according to scientists, the increase in ocean temperatures. The connection is simple: as global temperatures rise, so do ocean temperatures. Thus, warmer waters may lead to changes in phytoplankton populations. Some species thrive in warmer conditions, while others may decline, leading to changes in the dominant types of phytoplankton in different regions..

More specifically, experts found that chlorophyll – the photocellular pigment found in phytoplankton and plants that gives them their green hue – was 200-500% higher than average in the Norwegian Sea and the Atlantic Ocean north of the UK in April 2023, while it was 60-80% lower in the ocean west of the Iberian Peninsula. In the Mediterranean Sea, chorophyll levels were 50-100% higher than average in June 2023.

https://www.philenews.com/kosmos/syzitou...un-chroma/