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knightyn 2016-09-03 09:29:48 阅读: 1313

  2. In the periods of peak zooplankton abundance,that is,in the late spring and in the summer,Haney recorded maximum daily community grazing rates,for nutrient-poor lakes and bog lakes,respectively,of 6.6 percent and 114 percent of daily phytoplankton production. (3+)



 
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