14 5 ANNOTATED LIST OF SPECIES Check List 14 (5): 751–762 https://doi.org/10.15560/14.5.751 Freshwater microcrustaceans (Cladocera: Anomopoda and Ctenopoda, Copepoda: Cyclopoida and Calanoida) in the highly urbanized Metropolitan Manila area (Luzon, Philippines) Erica Silk P. Dela Paz1, 2, Mark Louie D. Lopez1, 4, Christian Irvin Harvey A. David2, Dave Ryan A. Dela Cruz2, Gian Alfonso A. Viernes2, Jac Fritgerald Wong2, Rey Donne S. Papa1, 2, 3 1 The Graduate School, University of Santo Tomas, Manila 1015, Philippines. 2 Department of Biological Sciences, College of Science, University of Santo Tomas, España, Manila 1015, Philippines. 3 Research Center for Natural and Applied Sciences, University of Santo Tomas, España, Manila 1015, Philippines. 4 Research Unit, Philippine Science High School, Agham Road, Diliman, Quezon City 1101, Philippines. Corresponding author: Rey Donne S. Papa,
[email protected] Abstract Despite the increasing interest in studying Cladocera and Copepoda in Philippine freshwaters, there is a need to update our knowledge on its taxonomy and distribution in highly urbanized areas, such as Metropolitan Manila. This paper presents an updated listing of freshwater microcrustaceans and their distribution in Metropolitan Manila, considering the continued deterioration of water quality and increased urbanization in many areas since the last comprehensive study on these taxa in 1950s. We collected water samples from 33 freshwater sites in Metropolitan Manila and 23 of which were found to contain microcrustacean zooplankton. A total of 13 species were identified including two new locality records for C. cornuta and D. dubium in Pasig River. All 8 cladocerans, we identified have already recorded in previous studies while 3 cyclopoid copepods are new records for Metropolitan Manila.