What specific water condition does *Ameiurus natalis* demonstrate significant tolerance for?
Answer
Hypoxic conditions, or areas with low oxygen levels
A key feature contributing to the Yellow Bullhead's success in marginal habitats is its significant tolerance for hypoxic conditions, which are environments characterized by low oxygen levels. This resistance enables the species to persist and forage successfully in stagnant backwaters or areas prone to oxygen depletion caused by heavy decomposition. While they tolerate low oxygen well, they can be forced into shallower waters or suffer die-offs if the bottom layers become anoxic, meaning completely devoid of oxygen.
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