11. It occurs in oligotrophic , moderate alkalinity lakes. 12. They fare best in somewhat oligotrophic water. 13. Based on available data, the lake's trophic state is classified as oligotrophic . 14. The largest concern in the Mediterranean is the local eutrophication of a naturally oligotrophic environment. 15. Being a domed bog, water enters the bog mainly from natural precipitation creating oligotrophic conditions. 16. These energy needs cannot be met in the extreme oligotrophic conditions that occur at great depths. 17. It may also occur in open areas, such as hydrophilic pastures near oligotrophic water bodies. 18. Aajuitsup Tasia is an oligotrophic lake of depth, covering an area of 1, 350ha. 19. These oligotrophic lakes show organic nitrogen and carbon as more limiting nutrients for trophic growth over phosphorus. 20. Hutchinson & Wollack suggested that following an initial oligotrophic stage lakes would achieve and maintain a trophic equilibrium.
