NASA and NOAA (National Oceanic and Atmospheric Administration) have reported a decline in phytoplankton in the North Pacific based on data collected over the past 20 years. According to their findings, the quantity of phytoplankton in the North Pacific has decreased by approximately 30%, which could have serious impacts on marine ecosystems and the global environment.
Role of Phytoplankton
Phytoplankton perform photosynthesis, absorbing carbon dioxide and releasing oxygen, and play a crucial role in the marine food chain by serving as food for small zooplankton and fish, thus supporting the entire marine ecosystem. Therefore, a decline in phytoplankton could affect the food supply for marine life and the carbon cycle.
Causes of the Decline
The decline in phytoplankton is believed to be due to several factors, including warming of the ocean surface and reduced nutrient supply. In particular, the increase in sea surface temperatures inhibits the upwelling of nutrients from deeper waters, which is essential for phytoplankton growth.
Impact and Future Challenges
If this decline continues, there is concern about the reduction of fish populations, the collapse of marine ecosystems, and an increase in global carbon dioxide levels. More detailed research and observation are needed, and measures to mitigate global warming are urgently required. International cooperation is also necessary to protect the marine environment.
Current Status of North Pacific Phytoplankton - August 13, 2024
The current status of phytoplankton in the North Pacific continues to be affected by climate change, with the warming of the ocean and a lack of nutrient supply posing serious challenges. Phytoplankton play a critical role in the global carbon cycle, and these changes raise concerns about their impact on marine ecosystems.
Specifically, the quantity of phytoplankton in the North Pacific has decreased by approximately 30% over the past 20 years, and their productivity has declined by 15% to 20%. This decline could also reduce the nutritional value of fish by 10% to 20%. Furthermore, a NASA research team has found that phytoplankton absorb about 24% of the atmospheric carbon dioxide, and their decline could have significant implications for the carbon cycle.
These data are crucial for future climate change measures and sustainable fisheries management.
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