Nearshore kelp forests, rocky reefs, bays, and estuaries, with most fishing over shallow reef and kelp structure.
Southern California fish guide
Calico Bass
Paralabrax clathratus
- Kelp bass
- checkerboard bass
- bull bass
Southern California's structure-oriented kelp bass. Learn the white checkerboard blotches, the equal central dorsal spines, and the difference between bass and rockfish before making a keep-or-release decision.
How this guide is sourced, reviewed 2026-07-28, 5 records
- Equal central spinesThird and fourth dorsal spines are equal and about twice the second.
- White checkerboardTwo rows of rectangular white blotches cross the brown back.
- No cheek spinesUnlike the rockfish look-alikes, the operculum lacks cheek spines.
See habitat reference
At a glance
Sources stay attached to every fact
Adults primarily take fishes, while the broader diet shifts seasonally and includes kelp-associated invertebrates.
Caught year-round, with the CDFW report showing the heaviest fishing in June, July, and August.
Managed with barred and spotted sand bass under a combined bag and a 14-inch total-length minimum in the July 1, 2026 Southern Region summary.
Fish structure without overpowering it
Bait & Tackle
Start here before you rig for Calico Bass. Adjust the final setup for depth, current, and local conditions.
What to offer
Natural & live bait
CDFW reports that kelp bass are caught mainly by hook and line, commonly with soft plastics or live or dead bait.
Artificial options
Lure categories
CDFW reports that kelp bass are caught mainly by hook and line, commonly with soft plastics or live or dead bait.
Start simple
Beginner setup
A beginner can start by working legal bait or a soft plastic along kelp and shallow rock edges, the habitat where CDFW says the fishery primarily occurs.
Water & structure
When to use it
CDFW reports that kelp bass are caught mainly by hook and line, commonly with soft plastics or live or dead bait.
Detailed techniques and source notes
CDFW reports that kelp bass are caught mainly by hook and line, commonly with soft plastics or live or dead bait. Typical baits include squid, sardines, and anchovies.
A beginner can start by working legal bait or a soft plastic along kelp and shallow rock edges, the habitat where CDFW says the fishery primarily occurs.
- Practical inference
- CDFW
Use tackle strong enough to bring a fish clear of cover and avoid an exhausting fight if it will be released.
- Practical inference
- CDFW
- NOAA Fisheries
Fish guide
Quick answers with sources when you need them
Checkerboard, spines, cheekIdentification & look-alikes
Look for a brownish-olive head with yellow spots, yellowish fins, and two rows of rectangular white blotches over a brown back.
The third and fourth dorsal spines are equal and about twice the length of the second spine.
CDFW notes confusion with yellowtail and olive rockfish. Those rockfish have opercular cheek spines that kelp bass lack.
Slow growth mattersTypical size
CDFW reports a maximum observed length of 28 inches, a record weight near 14.5 pounds, and a maximum observed age of 34 years.
In 2013–2016 hook-and-line samples, the average measured fish was 14.1 inches, but CDFW warns that discarded smaller fish were sampled less often, so the estimate may be biased high.
A generalist of the kelp forestDiet & prey
Adult kelp bass primarily eat fishes including anchovies, topsmelt, señorita, and perches, while also taking available pelagic and bottom prey.
CDFW summarizes more plankton and kelp-associated invertebrates in winter and spring, and more fish in summer.
Site-faithful structure predatorBehavior
Kelp bass tend to use small home ranges and are less likely to cross large sand gaps; larger connected reefs support larger and more abundant fish.
They form spawning groups in kelp beds, over rocky reefs, and in open water. The CDFW report gives an April–November season with a summer peak.
Read the reef edgesHabitat, structure, depth & range
CDFW gives a range from the Columbia River south to southern Baja California, but notes the species is rare north of Point Conception.
They occupy kelp forests, rocky reefs, bays, and estuaries. The fishery primarily operates in kelp and rocky-reef habitat.
CDFW describes typical hook-and-line targeting over shallow reefs and kelp beds down to about 70 feet, including offshore islands.
Year-round fish, summer emphasisSeasonal pattern & water
Southern California anglers catch kelp bass year-round, while CDFW landings data show June through August as the most commonly fished months.
CDFW links warmer conditions to larval survival and recruitment, not to a guaranteed daily bite. This guide therefore does not publish a bite-temperature threshold.
- Coverage note
- CDFW
Let prey and cover set the planWhen & how they feed
Kelp bass are generalist predators that shift among fish, plankton, and kelp-associated invertebrates as prey availability changes.
The reviewed CDFW sources do not establish one dependable daily feeding window, so the guide does not invent a dawn-or-dusk rule.
- Coverage note
- CDFW
Older fish deserve careful decisionsHandling & conservation
Use tackle strong enough to land the fish without an exhausting fight, and keep a dehooker or suitable release tool ready.
If releasing, dehook in the water when possible. Never gaff a fish you plan to release, keep air exposure brief, wet your hands, avoid eyes and gills, and support the body rather than hanging the fish by its mouth.
Face a sluggish fish into the current until it can swim away under its own power.
Kelp bass are long-lived, and CDFW reports that abundance and biomass are greater inside Southern California marine protected areas.
Snapshot checked 2026-07-28
California regulations
CDFW's July 1, 2026 Southern Region summary lists kelp, barred sand, and spotted sand bass as open year-round. The combined daily bag and possession limit is five fish, with no more than four barred sand bass, and the minimum is 14 inches total length or 10 inches alternate length.
Calico bass shares the five-fish aggregate with barred and spotted sand bass; it is not a separate five-fish allowance for each species.
Current general ocean rules specify a 7.5-inch minimum fillet and an intact one-inch square skin patch for kelp, barred sand, and spotted sand bass.
Trip planning
Counts, trips, landings, and boats
Recent verified countsOpen the live count view. Missing source reports remain labeled, never converted to zero.
Current source status →Open tripsBrowse verified schedule inventory. Current beta inventory does not claim that a trip targets this species.
Targeting not yet verified →Landing sourcesInspect official count and schedule sources by Southern California landing.
Source directory →Boats reporting tripsSee boats present in verified schedule feeds. Species targeting is shown only when a source proves it.
Honest coverage →Source ledgerHow this guide is sourced5 records
- Kelp Bass Enhanced Status ReportCalifornia Department of Fish and WildlifeCDFW status report used for biology, habitat, fishery, seasonal, diet, and gear facts. Published data in the report generally extend through 2017. Reviewed 2026-07-28.
- Southern Region ocean regulationsCalifornia Department of Fish and WildlifeOfficial current Southern Region season, size, bag, and possession summary. The page states it was updated July 1, 2026. Reviewed 2026-07-28.
- Nearshore Fishes: Kelp BassCalifornia Department of Fish and WildlifeOfficial identification traits, look-alikes, and current CDFW study summaries. Reviewed 2026-07-28.
- Catch and release fishing best practicesNOAA FisheriesOfficial handling and release guidance. NOAA states the page was updated September 3, 2025. Reviewed 2026-07-28.
- General ocean fishing regulationsCalifornia Department of Fish and WildlifeOfficial general limits, boat limits, gear rules, and fillet requirements. The page states it was updated July 24, 2026. Reviewed 2026-07-28.
Continue learning
Return to the guide for another fish, or open the latest count report for this species.