Zooplankton in Lake Coatetelco, a eutrophic shallow tropical lake in Mexico

Zooplankton from Lake Coatetelco, a shallow tropical reservoir in Morelos State, Mexico, was surveyed monthly through one year. The entire zooplankton community was represented by only five species, with the calanoid Arctodiaptomus dorsalis overwhelmingly dominant throughout the year. A cyclopoid copepod species, one cladoceran species, and two species of rotifers completed the zooplankton. Although some seasonal fluctuations were noted, zooplankton abundance did not appear related to simple physiocochemical parameters; however, there was a general inverse relationship between zooplankton and phytoplankton.