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How we source this: CDFW and NOAA references, with direct links to current regulations and source records for every fish. Check the linked live rules before fishing.

Southern California fish guide

White Seabass

Atractoscion nobilis

  • white sea bass
  • seabass
  • king croaker

Despite the name, white seabass is California's largest croaker. Read the long silver body, large mouth, belly ridge, dark side specks, and black pectoral-base mark together.

Sources reviewed 2026-07-288 source records
White Seabass in its habitat
Scientific anatomy plate of White Seabass
  1. Large mouthThe head carries a large mouth without the prominent paired canine teeth used to separate shortfin corvina.
  2. Speckled silver sidesAdults are gray-blue to copper above with dark side specks and a silver belly; juveniles can show bars.
  3. Pectoral-base markLook for the black spot at the inner base of the pectoral fin plus the raised ridge along the belly.

At a glance

Sources stay attached to every fact

Identity

The largest member of the croaker family Sciaenidae found in California waters; it is not a true sea bass.

Habitat

CDFW lists sandy areas, estuaries, piers, jetties, kelp beds, rocky reefs, offshore banks, and open ocean across life stages.

Primary foods

Documented prey includes northern anchovy, Pacific sardine, market squid, mackerel, blacksmith, silversides, and pelagic red crab.

Regulation posture

White seabass has a species-specific minimum size, bag limit, and fillet rule. Confirm the current Southern Region entry and measure before keeping.

Fish guide

Quick answers with sources when you need them

Read multiple features

Identification & look-alikes

Fast read

The head carries a large mouth without the prominent paired canine teeth used to separate shortfin corvina. Adults are gray-blue to copper above with dark side specks and a silver belly; juveniles can show bars. Look for the black spot at the inner base of the pectoral fin plus the raised ridge along the belly.

Confirm before keeping

Use body shape, fin placement, color pattern, and the official California identification resources together. Never make a keep decision from one color mark or a count-category name alone.

Scale changes the silhouette

Size & growth

Field context

Adults can become very large and their proportions lengthen with growth. Juveniles show dark side bars that fade as the fish matures.

Match the forage class

Diet

Documented foods

Documented prey includes northern anchovy, Pacific sardine, market squid, mackerel, blacksmith, silversides, and pelagic red crab.

How the fish uses the water

Behavior

Movement pattern

Adults move along the coast and can aggregate around spawning and feeding conditions; juveniles use protected shallow nursery habitat.

Start with structure and water column

Habitat & depth

Where to look

CDFW lists sandy areas, estuaries, piers, jetties, kelp beds, rocky reefs, offshore banks, and open ocean across life stages.

Availability is not a promise

Southern California seasonality

Planning context

CDFW life-history records adult spawning aggregations in spring and summer, with Southern California research sampling spanning March through September.

A source-backed starting point

Techniques & tackle

Common approach

CDFW records live squid and Pacific sardines as popular baits, with other live bait, dead bait, and lures effective when fish are actively feeding.

Decide before the fish reaches the rail

Handling & release

Prepare to release

Use tackle strong enough to land the fish without an exhausting fight, and keep a dehooker or suitable release tool ready.

Minimize harm

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.

Release with strength

Face a sluggish fish into the current until it can swim away under its own power.

Snapshot checked 2026-07-28

California regulations

White seabass has a species-specific minimum size, bag limit, and fillet rule. Confirm the current Southern Region entry and measure before keeping.

Check the live Southern Region page

White seabass has a species-specific minimum size, bag limit, and fillet rule. Confirm the current Southern Region entry and measure before keeping.

Boat and fillet rules still apply

Review the general ocean regulations for possession, filleting, gear, protected-area, and boat-limit rules before departure.

From species to a trip plan

Only trips that name this fish

Sources for this guide

8 source records

  • Nearshore Fishes: White SeabassCalifornia Department of Fish and WildlifeOfficial identification, fishery, habitat, and research summary for white seabass. Reviewed 2026-07-28.
  • Life History Information for Selected California Marine FishesCalifornia Department of Fish and WildlifeOfficial habitat, depth, reproduction, and life-history summaries for California marine fishes. Reviewed 2026-07-28.
  • California Marine Species PortalCalifornia Department of Fish and WildlifeCurrent California common names, scientific names, and species aliases. 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.
  • 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.
  • Marine Fish and Shellfish IdentificationCalifornia Department of Fish and WildlifeOfficial California identification hub, including rockfish groups and Southern California sport-fish references. 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.
  • Ocean Sport Fishing hubCalifornia Department of Fish and WildlifeOfficial entry point for licenses, identification, current regulations, marine protected areas, advisories, and release guidance. Reviewed 2026-07-28.

Continue learning

Return to the guide for another fish, or open the latest count report for this species.