Fauna
Species · GBIF taxon 2340989

Brown Bullhead

Ameiurus nebulosus

Also known as Horned Pout, Hornpout, Mullen, Brown Catfish

Brown bullheads cruise muddy lake bottoms and sluggish streams after dark, using eight sensitive barbels around their mouth to locate food in complete darkness. Parents build shallow gravel or mud nests and actively guard both the eggs and dense swimming clouds of jet-black fry for several weeks after hatching. These resilient fish tolerate warm temperatures, heavy pollution, and exceptionally low dissolved oxygen levels by gulping air directly at the surface.

FreshwaterNocturnalBottom-Dweller
Brown Bullhead reference1 / 7
Licensed reference(c) Ken-ichi Ueda, some rights reserved (CC BY) · cc-by
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & prey
  • Aquatic Insects
  • Crayfish
  • Small Fish
Predators
  • Northern Pike
  • Largemouth Bass
  • Great Blue Heron
ThreatsHabitat destruction, severe water pollution, invasive fish competition
HabitatsSlow-moving rivers, muddy lakes, ponds, shallow reservoirs
Life span6–9 years
Classification
  1. OrderSiluriformes
  2. FamilyIctaluridae
  3. GenusAmeiurus
  4. SpeciesAmeiurus nebulosus
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Sharp pectoral and dorsal spines can puncture skin; handle carefully behind the side fins.
Why it is dangerous
Sharp dorsal and pectoral spines coated in mild venom cause localized pain and swelling when puncturing skin.
How to recognize a risky encounter
Look for dark brownish mottled skin, dark chin barbels, and a squared tail fin.
What to do
Slide your hand behind the gill covers to trap the side spines flat against the body.
Responsible observation
  • Handling: Slide your hand beneath the belly, placing fingers behind the sharp dorsal and pectoral spines to pin them safely.
  • Observation: Search shallow, soft-bottomed shorelines at night with a dim flashlight to see feeding activity.
Related species
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