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Ichthyopedia/El Niño Compendium/Star-studded Grouper
El Niño Compendium

Star-studded Grouper

A dark juvenile star-studded grouper with rows of white spots, beside a rock wall
Range status
Edge of range
Rarity this season
Uncommon

Normally 165 to 425 feet deep; the 2026 juveniles turned up at diving depth.

Primary biome
Secondary biomes
Reports this season
25

Sightings

2026 season, every one sourced

Southern California

  1. Oct 28, 2026
    Americas Cup Harbor, San Diego Bay
  2. Oct 27, 2026
    "The Wall," La Jolla Submarine Canyon
  3. Oct 25, 2026
    Main Wall, La Jolla Submarine Canyon, and San Diego County
  4. Oct 23, 2026
    San Diego County
  5. Oct 18 to 22, 2026
    Vallecitos Point, La Jolla, and San Diego County
    About 40 to 50 juveniles at Vallecitos Point

Photos

From California this season

A dark juvenile star-studded grouper with rows of white spots, beside a rock wall
Vallecitos Point, La Jolla, about 60 to 65 feet deep, Oct 18, 2026

Home Range

Where it normally lives

Southern California south to Peru.

Range source: FishBase

The species ranges from southern California to Peru. It normally lives deep, from about 165 to 425 feet, on rocky reef and soft bottom.

Habitat
Deep rocky reef and soft bottom
Size
Up to about 19 inches, not counting the tail
Depth
Usually about 165 to 425 feet

Identification

Young star-studded groupers are dark reddish brown and covered in white spots laid out in a neat grid of rows and columns across the body and dorsal fin. A dark saddle sits on top of the tail base, and the tail and pectoral fins are pale. Adults lose the white spots and turn plain dark brown. Some authors have mistaken it for a different grouper species.

Natural History

Star-studded groupers turn up often in shrimp trawls in the central Gulf of California, but the species is too rare to support a fishery. FishBase records little else about how it lives.

In California

Southern California is already inside this grouper's published range, so the 2026 records stand out for their numbers and their depth. On October 18, a diver reported about 40 to 50 juveniles at Vallecitos Point in La Jolla, in water far shallower than the species' usual depth. Records kept coming over the next 10 days, from the walls of the La Jolla Submarine Canyon, from elsewhere in San Diego County and from Americas Cup Harbor in San Diego Bay.

Taxonomy

Phylum
Chordata
Class
Actinopterygii
Order
Perciformes
Family
Epinephelidae
Genus / Species
Hyporthodus niphobles
Family, common name
Groupers

Rarity

Rarity this season
Uncommon
Reports this season
25
Conservation status
Least Concern (assessed 2016)

Rarity in the compendium is how often the animal has been reported on the California coast this season, not how rare it is where it normally lives. It moves as new sightings come in.

Star-studded Grouper — El Niño Compendium | Nautical Nick