Chaoborus punctipennis is a species of phantom midges (flies in the family Chaoboridae).
Survival patterns Chaoborus punctipennis tend to move vertically through the levels of the water to avoid predation by fish. According to Rine and Kesler, “an oxygen concentration below 2.0 mg/l could not be tolerated by fish. Comparison of the depths at which this critical oxygen concentration occurred with mean larval depth showed a significant correlation (P<0.05), supporting the hypothesis that diel vertical migration affords protection from fish predation”.Rine, H. E., & Kesler, D. H. (2001). A long-term study of larval Chaoborus punctipennis (Diptera: Insecta) vertical migration and the role of critical oxygen concentration. Journal of Freshwater Ecology, P. 145-150.
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