Status characterization of the condition of a body of water as eutrophic, oligotrophic or mesotrophic Indicators or certain characteristics of a lake are used to measure the productivity of a lake Indicators can be chemical, physical or biological in nature Having to do with various nutritional levels of the food chain
Relating to processes of energy and nutrient transfer from one or more organisms to others in an ecosystem
Of or connected with nutrition; nitritional; nourishing; as, the so-called trophic nerves, which have a direct influence on nutrition