BioConcepts

eutrophiceutroph (ger.)

• Of a lake, swamp, etc.: (over-)rich in organic or mineral nutrients and having as a result an excessive growth of algæ and other plants, with depletion of oxygen and consequent extinction of animal life. (OED)
  category habitat

  1907

  Da sich nun der größere oder geringere Reichtum von Nährstoffen [...] auch in den vertorfenden Resten der betreffenden Pflanzenvereine widerspiegelt, so erklärt es sich, daß [...] immer von unten nach oben nährstoffreichere (eutrophe), dann mittelreiche (mesotrophe) und zuletzt nährstoffarme (oligotrophe) Torfschichten folgen, ja unter normalen Verhältnissen folgen müssen.

  Weber, C.A. (1907). Aufbau und Vegetation der Moore Norddeutschlands. Bot. Jahrb. 40, Beibl. 90, 19-34: 26f.

  1911

  Weber distinguishes the ‘eutrophic peat’ (fen peat) of the earlier stages of such a succession from the ‘oligotrophic peat’ (moor peat) of the later stages.

  Tansley, A.G. (1911). Types of British Vegetation: 212.

  1931

  The eutrophic type of lake is characterized by the paucity or absence of oxygen in the bottom waters.

  Chapman, R.N. (1931). Animal Ecology: 305.

  1982

  eutrophic1: Having high primary productivity; pertaining to waters rich in the mineral nutrients required by green plants. 2: Used of a lake in which the hypolimnion becomes depleted of oxygen during the summer by the decay of organic matter sinking from the epilimnion; cf. dystrophic, mesotrophic, oligotrophic.

  Lincoln, R.J., Boxshall, G.A. & Clark, P.F. (1982). A Dictionary of Ecology, Evolution and Systematics: 87.