Laserfiche WebLink
<br />~ <br /> <br /> <br />q~')0')(\ <br />: ;." .:) ,,'_.I <br /> <br /> <br />.. <br /> <br />.. <br /> <br />" <br /> <br />" <br />" <br /> <br /> <br />~ <br /> <br />~ <br /> <br />----------" <br /> <br />~ <br /> <br />~ <br />0-< <br />...::.::-..e-::- <br /> <br />,.~ <br /> <br />,. <br /> <br />-- <br />,. <br /> <br />--- <br /> <br />,. <br /> <br />,. <br /> <br />,. <br /> <br />~ <br /> <br />,. <br /> <br />~ <br /> <br />,. <br /> <br />Zone <br /> <br />,. <br /> <br />,. <br /> <br />._~ <br />"".$" <br />'>~ <br /> <br />level <br /> <br />Zone <br /> <br />EXPLANATION <br /> <br />Littoral zone <br /> <br />Shallow water area that has sufficient light to support attached vegetation <br />Open water area where base is defined by the 1-percent light-intensity level <br />The combined littoral and Iimnetic zones <br /> <br />Limnetic zone <br /> <br />Euphotic zone <br /> <br />Profundal zone <br /> <br />Level at which oxygen production equals oxygen uptake <br />Zone of deep water where the light intensity is less than 1 percent of the surface light. <br />Little or no photosynthesis occurs in this zone <br />Lake bottom <br /> <br />Compensation level <br /> <br />Benthic zone <br /> <br />Figure 3.--Major zones in a lake (modified from Britton and others, <br />1975, p. 3). <br /> <br />9 <br />