Invasive species like rainbow trout ( Oncorhynchus mykiss (Walbaum, 1972)) and red swamp crayfish ( Procambarus clarkii (Girard, 1852)) may be significant threats to Megaloptera populations, either by competing with or preying on hellgrammites.
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Bionomics and Ecological Services of Megaloptera Larvae (Dobsonflies, Fishflies, Alderflies).
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