Guinto, a Doctor of Philosophy in Biological Sciences student of the Graduate School, studied the freshwater calanoid copepod which was named an invasive species. Genomic DNA were extracted to represent seven populations in Luzon. The noted population increase is attributed to “the suspected initial introduction via ornamental aquarium fish trade practices in 1905 and then a population range expansion through a single or multiple introduction event towards other nearby inland waters through accidental movement of A. dorsalis individuals via human-mediated activities, particularly aquaculture, which have persisted since 1972.”

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