Which fish species are typically found in waters where phytoplankton and rooted plant production are low?

The fish species that are typically found in waters where phytoplankton and rooted plant production are low are trout and salmon. These species thrive in cold, well-oxygenated waters, which are often found in environments that do not support high levels of phytoplankton or rooted plant growth. These fish prefer clear, clean waters with low nutrient levels, characteristic of oligotrophic environments, which tend to have limited organic productivity. In such conditions, the habitat remains suitable for salmonids as they rely on high water quality and specific thermal regimes that are not conducive to high primary productivity.

In contrast, the other species listed generally prefer habitats with higher primary productivity and are better adapted to environments with abundant plant matter and phytoplankton, making those options less suitable for waters characterized by low production.