Diaphanosoma excisum (Sars, 1885)

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), Check List 14 (5), pp. 751-762 : 755-756

publication ID	https://doi.org/ 10.15560/14.5.751
persistent identifier	https://treatment.plazi.org/id/79082338-0969-2310-CF78-F9E3FD6AFCDE
treatment provided by	Marcus
scientific name	Diaphanosoma excisum (Sars, 1885)
status

Treatment

Diaphanosoma excisum (Sars, 1885) View in CoL

Materials examined. Philippines: Luzon: Manila: creek in Tomas Morato Avenue beside Creekside Square (14.6260° N, 121.0334° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 ( UST-ZRC 0130A–B, 2 spec.). Ninoy Aquino Parks and Wildlife Lagoon (14.6512° N, 121.0432° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 ( UST-ZRC 0129A–C, 3 spec.) La Mesa Ecopark Lagoon (14.7121° N, 121.0756° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 ( UST-ZRC 0126A–D, 4 spec.). Marikina River (14.6342° N, 121.0936° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 ( UST-ZRC 0127). Navotas River (14.6436° N, 120.9607° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 ( UST-ZRC 0128, 1 spec.).

Short description. The head is almost rectangular in shape, with a convex dorsal portion with eye near at the ventral margin. The carapace is oval shape. The posteroventral margin bears narrow free flap and ungrouped marginal spines. The postabdominal claw bears 3 spines, with short proximal spine and the long distal spine. The morphological characteristics concur with the descriptions and illustrations provided by Mamaril Sr. and Fernando (1978), Fernando (1992), Korovchinsky (2002), Dumont and Negrea (2002), and Pascual et al. (2014).

Ecological distribution. Diaphanosoma excisum is present in lakes, reservoirs, rivers, creeks, and pools. This fast swimmer cladoceran inhabits the pelagic area and can survive variety of water environmental conditions (i.e. trophic status and temperature) ( Rizo et al. 2017).