Pacific Mackerel
Scomber japonicus
Also known as: Blue Mackerel; Chub Mackerel; Pacific Chub Mackerel
Size & Weight
Average Length
15.0"
Max Length
25.0"
Average Weight
1.0 lbs
Max Weight
6.0 lbs
Lifespan
18 years
Habitat
Depth Range
0 - 1000 ft
Water Temp
60-72°F
Coastal to offshore; schooling; surface to moderate depth
Behavior
Spawning Season
Spring-summer
Migration: Extensive migrations following plankton and bait
Diet: Plankton; small fish; squid; crustaceans
Fishing Tips
PNW Season
Year-round when present; variable
Techniques: Sabiki rigs; light tackle; casting
Best Bait: Small jigs; cut bait; flies
Eating Quality
Edibility
Good
Oily; strong flavor; excellent fresh; popular bait
State Records
Washington
2.5
lbs
California
2.5
lbs
Fun Facts
Important bait fish; oily flesh; highly migratory; populations fluctuate dramatically
How to Identify
Green-blue upper with silvery sides; wavy stripes on upper back; fast-growing; annual cycles
Official Resources
Sources: CDFW; NOAA
Change History (Last updated Feb 02, 2026 at 10:33 AM)
| Date | Change | Old Value | New Value |
|---|---|---|---|
| Feb 02, 2026 10:33 AM | Updated Avg Length | — | 15.0 |