Observations reveal co-nest building behavior and spawning in native river chub and introduced bluehead chub, suggesting potential hybridization issues.
Co-nest building and spawning among individuals of the native population of River Chub (Nocomis micropogon) and among those of an introduced population of Bluehead Chub (N. leptocephalus) observed in the Swannanoa River (French Broad River basin) during Spring 2024 represents the first time such behaviors have been documented between two species of Nocomis. Observations of these behaviors are described and discussed in the context of potential hybridization and the impact of introduced Bluehead Chubs in the French Broad River basin.
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Patrick J. Ciccotto (2024) studied this question.
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