Zooplankton Community Grazing In Lake Kuriftu

Studies on zooplankton community grazing rates were done in Lake Kuriftu from Julyrn2005 to April 2006 using food removal method with chlorophyll ‘a’ as algal foodrnindicator. The study considered the main factors that affect zooplankton communityrngrazing rates such as density and size of both grazers and phytoplankton. Meanrngrazing rate at the natural density of zooplankton was 59.3% per day during the studyrnperiod. Grazing rate values ranged from 18.3 % to 135.6% per day at both sites andrnall months. Increasing zooplankton density at two to four times ambient density wasrnfound to decrease grazing rates. Grazing rates were higher for larger zooplanktonrn(>250mm) than smaller ones (

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