VOLUME 62 : 2014

VOLUME 62 : 2014

ACTA MANILANA publishes research and innovation in the different branches of the natural and applied sciences. It reports significant development in the discipline, and novel applications, unconfined by the traditional coverage of the disciplines.

First record of the invasive Arctodiaptomus dorsalis (Marsh, 1907) (Copepoda:Calanoida:Diaptomidae) in Lake Lanao (Mindanao Island, Philippines)

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Ephrime B. Metillo, Alyza M. Masorong, Sittie Aisah N. Macabangkit, Jill Rosette U. Licayan, Dino T. Tordesillas, & Rey Donne S. Papa

Graphical Abstract


Arctodiaptomus dorsalis, originally described to be distributed within the Americas, has been documented to occupy a significant number of freshwater lakes in the Philippines. This paper reports the first record of A. dorsalis in Lake Lanao, an ancient lake located in the island of Mindanao. Based on its very high abundance, and positive correlation between the total body length of females with lake dissolved nitrates, phosphates and chlorophyll a concentration, A. dorsalis has clearly established itself in the lake ecosystem and has benefitted in the steady increase in the lake’s nutrient load. Lake Lanao’s endemic Tropodiaptomus gigantoviger may be considered as another calanoid species to be displaced by A. dorsalis given that a thorough examination of plankton samples collected from Lake Lanao have not yielded individuals of T. gigantoviger.

Keywords: Invasive species, Copepods, Tropical Limnology, Non-Indigenous Zooplankton


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