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,-...,e--;--7-, ...,„. <br /> Oligotrophic, Mesotrophic, and Eutrophic Lakes <br /> C�s` <br /> Oligotrophic lakes-usually typified as young, .-'r" " g ( e <br /> healthy lakes in the early phases of production f. . -' �, <br /> and lake development- feature clear water, ` i' r <br /> high oxygen levels, and low productivity of ' . 1 c4 <br /> ;1. <br /> vegetation, algae and other aquatic micro- T x ' <br /> organisms. They tend to be deep and while `� .t;• %% <br /> they do not support large fish populations, they <br /> do often support good food chains and large ,, ._ ,• �,v <br /> game fish. Oligotrophic <br /> . <br /> Mesotrophic lakes are older and usually h } ;, "5"--- <br /> experience more run-off and sedimentation. <br /> They feature increased production of aquatic ; ---,--&-. ' <br /> plant life and microorganisms. They tend to ca ' ;N -,.. '`1'_�- _. ,.r • <br /> have a greater accumulation of organic matter cf .}, , ': .it �+ <br /> and experience occasional algal blooms. A, - _ 1-if,' so bit. j <br /> .5 . <br /> Mesotrophic support a diversity of fish and � <br /> - other aquatic wildlife species. <br /> Mesotrophic = :. <br /> L\' <br /> Eutrophic lakes are in advanced stages of ��° <br /> production and development with poor water . .:. ,-r'.,. <br /> clarity, heavy sedimentation, high phosphorous -- ' <br /> and nitrate levels, and an accumulation of '`. ' I. y7%. <br /> organic matter. They tend to be oxygen-poor ter., op., ��. $ <br /> and do not support a healthy fishery, but rather �`. '1i-ij.: r ,.-w „f .- <br /> rough fish species. Eutrophic lakes tend to be _ t+- f ' <br /> shallow due to the accumulation of organic . '- ,; <br /> matter. Those that are small in size are "'z -_ <br /> Eutrophic � -.- <br /> vulnerable to winter-kills. <br /> Information and drawings provided by the University of Wisconsin Extension- Stevens Point. <br /> 2003 <br /> - <br /> iiiiPequot Lakes Vision 2025 <br />