oligotrophic zones

Oligotrophic zones are areas, often found in oceans and lakes, that have low levels of nutrients and organic matter. This means there is less food for plant life, resulting in clear water and limited aquatic growth. These zones typically support less phytoplankton, which is essential for the aquatic food web, leading to fewer fish and other animals. Oligotrophic environments are usually characterized by high oxygen levels and can be quite healthy ecosystems, but they are less productive than eutrophic zones, which have higher nutrients and support more life.