eu·troph·ic 
(y-trŏfĭk, -trōfĭk)
(y-trŏfĭk, -trōfĭk)adj.
Rich in mineral and organic nutrients that promote a proliferation of algae and aquatic plants, resulting in a reduction of dissolved oxygen. Used of a lake or pond.
[From Greek eutrophos, well-nourished : eu-, eu- + trephein, to nourish.]
eu·troph′i·cation n.
eutro·phy (ytrə-fē) n.