channel catfish, dangerous invasive freshwater predator fish, ictalurus punctatus, demonstrating its head

aggressive america animal aqua aquarium aquatic barbel barbels behaviour biotope cat catfish channel clear dangerous demonstrating driftwood ecology fauna fish fishkeeping freshwater gravel head hornwort ictaluridae ictalurus instinct invasion invasive its juvenile line lips local long macro masking mouth native natural nature omnivore portrait powerful predator punctatus river sand states strong tank threat underwater united water whisker widespread wild