Arctodiaptomus dorsalis

Arctodiaptomus dorsalis (Marsh, 1907) Materials examined. Philippines: Luzon: Manila: Pasig River (14.5604° N, 121.0659° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0253A–B, USTZRC 0254, USTZRC 0255A–B, and USTZRC 0256A–B, 4 spec.). Short description. The body is generally elongated with a long antennule that generally reaches the tip of the urosome. Male specimen: antennule is geniculated. Right exopodite 2 of P5 leg is relatively large and bears a long, thin, and strongly curved terminal claw on the posteromedian area; and with a short lateral spine protruding near the middle of exopodite 2. Female specimen: antennule is straight. The pair of P5 is symmetrical. All the morphological characteristics concur with the descriptions and illustrations of Dussart and Defaye (2001) and Papa et al. (2012). Ecological distribution. Arctodiaptomus dorsalis is found in lakes and rivers. This species is an invasive copepod hence that can tolerate eutrophic condition (Papa et al. 2012).
Published as part of Dela Paz, Erica Silk P., Lopez, Mark Louie D., David, Christian Irvin Harvey A., Dela Cruz, Dave Ryan A., Viernes, Gian Alfonso A., Wong, Jac Fritgerald & Papa, Rey Donne S., 2018, Freshwater microcrustaceans (Cladocera: Anomopoda and Ctenopoda, Copepoda: Cyclopoida and Calanoida) in the highly urbanized Metropolitan Manila area (Luzon, Philippines), pp. 751-762 in Check List 14 (5) on page 757, DOI: 10.15560/14.5.751
{"references":["Dussart BH, Defaye D (2001) Introduction to the Copepoda. 2 nd edition. Guide to the Identification of the Microinvertebrates of the Continental Waters of the World, No. 16. Backhuys Publishers, Leiden. 344 pp.","Papa RDS, Li H, Tordesillas DT, Han B, Dumont HJ (2012) Massive Invasion of Arctodiaptomus dorsalis (Copepoda, Calanoida, Diaptomidae) in Philippine lakes; a threat to Asian zooplankton biodiversity? Biological Invasions 14 (12): 2471 - 2478. http: // doi. org / 10.1007 / s 10530 - 012 - 0250 - 9"]}