Fish
Brown Bullhead
Ameiurus nebulosus · also called brown bullheads
In a shallow, murky pond low enough in oxygen to have driven off nearly every other fish, a brown bullhead continues feeding calmly, tasting its next meal through its own skin and barbels long before it ever needs to actually see it.
Overview
The brown bullhead, Ameiurus nebulosus, is a hardy catfish native to ponds, lakes, and slow-moving rivers across eastern North America. Its full-body taste sense and remarkable tolerance for low-oxygen, polluted water make it one of the more physiologically extreme and genuinely tough native freshwater fish on the continent.
A fish that tastes its way through the dark
Where most fish rely heavily on sight to find food, the brown bullhead barely needs it at all, using taste buds spread across its own body to locate a meal in water too murky or too degraded for almost anything else to comfortably survive in.
Status
Least Concern — widespread and abundant across suitable freshwater habitat throughout eastern North America.
Brown Bullhead: common questions
How can a brown bullhead taste food before touching it with its mouth?
A brown bullhead has taste buds distributed across much of its own skin, in addition to the sensitive barbels around its mouth, allowing the fish to detect and locate food by taste and touch well before the food actually reaches its mouth, a significant advantage when feeding in murky, low-visibility water.
Why can the brown bullhead survive in water other fish can't?
A brown bullhead tolerates remarkably low oxygen levels and degraded water quality, physiological adaptations that let it survive in ponds and slow waters that would be lethal to most other freshwater fish species, making it one of the hardiest native fish found across its eastern North American range.
Is the brown bullhead active during the day or at night?
The brown bullhead feeds mainly at night along the bottom of ponds, lakes, and slow streams, resting in cover such as vegetation or submerged debris during daylight hours, a nocturnal feeding pattern shared broadly among catfish species.
Where does the brown bullhead live?
The brown bullhead is native to ponds, lakes, and slow-moving rivers across much of eastern North America, and it has also been introduced to parts of Europe and other regions, where its hardiness sometimes allows it to become invasive.