Upwelling Patterns in Indonesian Waters: An Important Role in Ocean Productivity

Source:https://www.eopugetsound.org/articles/climate-and-ocean-processes

Indonesia, with its vast waters and complex oceanography, is home to a variety of interesting and influential natural phenomena, one of which is upwelling. Upwelling is an oceanographic process that occurs when cold seawater from the lower layers rises to the sea surface due to wind movement. This phenomenon, in the context of Indonesia, has an important role in regulating the productivity of marine waters, influencing marine ecosystems, and encouraging sustainable research activities.

This process has a significant impact on marine ecosystems. When cold, nutrient-rich water rises to the ocean surface, it brings with it nutrients essential for marine life, such as phytoplankton and other organisms. Phytoplankton are marine microorganisms that form the basis of the food chain for various marine organisms, including fish.

As an archipelago, Indonesia relies heavily on marine resources, so a deeper understanding of upwelling is key to maintaining the sustainability of fisheries and the conservation of marine ecosystems in the region.

Upwelling Patterns in Indonesian Waters

In a recent discovery, scientists have uncovered intriguing patterns in the distribution of upwelling in Indonesian waters, revealing the riches that lie beneath the ocean's surface. Research conducted over 17 years has highlighted consistent patterns in the formation of upwelling in this region.

One example of the research shows that the distribution pattern of upwelling starts from the waters of East Nusa Tenggara (NTT) and progresses until it reaches the South of Java. The formation of upwelling usually starts in June, reaches its peak in August, and ends in November every year. This phenomenon creates highly productive environmental conditions, providing an advantage for marine life around this region.

In addition, the correlation between upwelling and the El Nino Southern Oscillation (ENSO) has been proven. During El Nino periods, changes in the volume of water masses affect the water temperature, while during La Nina periods, the opposite changes occur. ENSO variability affects the intensity of upwelling in Indonesian waters, creating fluctuations in the productivity and dynamics of the marine environment.

Effect of upwelling

The positive impact of upwelling is seen in the abundance of fish resources in these waters. Waters that experience upwelling have high levels of primary productivity, which supports a diverse diet of fish and marine ecosystems. This also makes them potential areas for fishing, as high concentrations of plankton attract small fish as food.

With a deeper understanding of upwelling, we can maintain the sustainability of fisheries and conservation of marine ecosystems in the Indonesian region, as well as identify the economic potential associated with the abundance of fish resources. This proves that upwelling is a key factor in maintaining and utilizing Indonesia's marine wealth.

Writer : Fitri Nurpujiana