Fauna
Fish

Tomtate

Haemulon aurolineatum

Also known as Tomtate Grunt, Yellow Grunt, Redmouth Grunt

Tomtates form dense, shimmering aggregations above shallow patch reefs and shipwrecks by day, drifting lazily within the surge. When dusk arrives, schools disperse into adjacent seagrass beds and open sand flats to hunt small invertebrates under cover of darkness. Like their relatives, they produce audible grunting sounds by grinding their pharyngeal teeth, which their swim bladders amplify during territorial disputes.

SchoolingMarineNocturnal Feeder
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyBenthic Amphipods, Polychaete Worms, Copepods
Predators
  • Great Barracuda
  • Goliath Grouper
  • Blackfin Snapper
ThreatsBycatch in trawl fisheries, reef habitat degradation, and coastal pollution
HabitatsCoral reefs, rocky ledges, seagrass beds, and patch reefs
Life span5–9 years
  1. OrderPerciformes
  2. FamilyHaemulidae
  3. GenusHaemulon
  4. SpeciesHaemulon aurolineatum
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Reef Etiquette: Maintain neutral buoyancy to avoid disturbing resting daytime schools.
  • Night Dives: Use a diffused or red light to watch solitary feeding behavior on sand flats.
Help improve the field guideSomething wrong?

Report a name, category, or profile issue for review.

Checking your Fauna account…