Areas so affected are called eutrophic, whilst more remote ocean waters which become starved of nutrients in summer are referred to as oligotrophic.
2
River Derwent and Bassenthwaite Lake Cumbria The Derwent represents brook lamprey Lampetra planeri in a high-quality, oligotrophic river in northern England.
3
River Derwent and Bassenthwaite Lake Cumbria The Derwent represents sea lamprey Petromyzon marinus in a high-quality oligotrophic river in northern England.
4
This implies that the food web structure and primary productivity are uncoupled in the oligotrophic gyres.