Anisotremus taeniatus
Yellow-striped grunt found on rocky reefs from Baja California to Costa Rica's Guanacaste, in 25-28 C water year-round.
Deep-bodied fish around 21 cm with a striking pattern of black-edged yellow stripes running along a silvery-white body. A distinct dark blotch sits just above the pectoral fin, and the head shows a black stripe running through the eye. The steep, blunt-nosed profile and thick lips are typical of the grunt family and help separate it from more slender reef fish sharing the same habitat.
Typically found hovering close to rocky reef structure or hanging in loose groups near ledges and boulders, picking at invertebrates on and around the substrate. It tends to hold its position rather than bolt when divers approach, though it usually keeps a bit of distance rather than coming in close. Most sightings are logged as uncommon rather than a guaranteed encounter, so a patient look along rocky walls and reef edges pays off.
Its thick lips and demersal (bottom-dwelling) feeding style are shared traits across the grunt family, built for rooting out small invertebrates from sand and rock crevices rather than chasing prey in open water.
No clear seasonal pattern shows up in the data, and with a comfortable range of roughly 25 to 29 C, it's logged on rocky and reef habitat throughout the year rather than during a specific window.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
Most reliably logged along the Pacific coast of the Americas, with strong numbers in Baja California and the Pacific Coast of Mexico, and an equally solid presence in Guanacaste and the South Pacific region of Costa Rica. Smaller numbers turn up on the Pacific Coast of Ecuador and Panama, making this largely a Central American and Mexican Pacific species for divers.
Mapping where Panamic Porkfish is logged…
Best chances are along Mexico's Baja California and Pacific coast, and in Costa Rica's Guanacaste and South Pacific regions. It also turns up in smaller numbers off Ecuador's Pacific coast and Panama.
There's no strong seasonal pattern in sighting data, and the species tolerates a wide temperature range of roughly 25 to 29 C, so it's a year-round sighting on the reefs where it occurs.
Look for a deep-bodied fish about 21 cm long with bold black-edged yellow stripes, a silvery body, and a dark blotch above the pectoral fin. A black stripe through the eye and thick lips complete the look.
They typically reach around 21 cm, a modest size that keeps them easy to overlook against busier rocky reef backgrounds.
No, they pose no threat to divers and simply go about feeding near rocky structure, keeping a comfortable distance if approached.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Bluestriped Grunt
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