oligotrophic

adjective Ecology.

1. (of a lake) characterized by a low accumulation of dissolved nutrient salts, supporting but a sparse growth of algae and other organisms, and having a high oxygen content owing to the low organic content.

adjective

1. (of lakes and similar habitats) poor in nutrients and plant life and rich in oxygenCompare eutrophic

1. Lacking in plant nutrients such as phosphates, nitrates, and organic matter, and consequently having few plants and a large amount of dissolved oxygen throughout. Used of a lake, pond, or stream. Compare dystrophic eutrophic.