Spearfishing Stats

Taxonomy

Rarity

The greenspotted rockfish is the one small deep-shelf rockfish on the CDFW identification chart with a documented fishing problem attached to it. It is a major commercial quarry in California, taken by gill net, hook and line and trawl, and restrictions followed after the average size of fish in the catch began falling, which in a slow-growing species is the signature of overfishing rather than of a bad year. That is the same evidence type the state used to raise the alarm on brown rockfish: not a headcount, but a downward drift in the size of what comes over the rail.

There is no stock assessment for the species alone and no IUCN evaluation. It is managed federally inside a minor shelf rockfish complex. FishBase rates it low resilience, with a population needing 4.5 to 14 years to double, and vulnerability of 57 out of 100.

For a diver it is out of reach. The shallow limit is given as 161 feet by one source and 200 by another, and the population runs down to about 800.

Regulations

CDFW rules verified 2026-09-04

Seasonality

Edibility

Location

Greenspotted rockfish live from Copalis Head in Washington south into Baja California, with some accounts extending the southern end to Magdalena Bay. They use both hard and soft ground, which sets them apart from most of the deep-reef rockfish: boulder-strewn areas, rock ledges, and muddy bottom all hold them. They are generally solitary and stay on the substrate, and they feed largely on invertebrates, especially crabs and shrimp, with small fish as well.

The fish is worth being able to identify because its neighbor on the chart looks so much like it. The body is broad, a little over a third as deep as it is long, with a large head, prominent eyes and a short snout, and the dorsal fin membranes are deeply notched between the spines. The color is yellowish pink on the body and fins, marked with vivid green spots across the upper body and sinuous green lines along the back, plus 3 to 5 pale blotches down the back.

The greenblotched rockfish carries green markings too, but they are vermiculations, dense worm-track squiggles above the lateral line and across the top of the head, rather than distinct spots and short lines. Spots and short lines here; worm tracks there. That is the separation, and it is not an easy one on a wet fish in poor light. It reaches 20 inches and about 2.2 pounds and lives up to 33 years. As with every rockfish, the fin spines are sharp and carry mild venom.

Spearfishing Brief

There is no established spearfishing for this species. It is legal in California inside the 10-fish rockfish bag with no size limit and no sub-limit, and spear divers are exempt from the season and depth restrictions, but the population sits between roughly 161 and 801 feet.

An encounter at the shallow end would be on deep reef with a solitary fish on the bottom, which makes the shot trivial and the search the whole difficulty. Any short reef gun covers it. Nobody has published a description of how the fish eats, so this entry leaves the table quality blank rather than guessing.

The one thing a diver should carry away is the identification, because the green-marked pair is genuinely hard, and because this is the one of the 2 whose average size in the fishery has been going down.

Deep Dive

David Starr Jordan and Charles Henry Gilbert described the greenspotted rockfish in 1880, in the same run of California work that produced the treefish, the starry rockfish and the widow rockfish. The name means green spotted and, unusually for a rockfish name, it is genuinely diagnostic.

The reproductive record for this species is better than for most of its neighbors, and it is worth setting down because it shows what the record looks like when someone actually studies a small deep-shelf fish. Off central California, birth runs March through August. A female carries somewhere between 14,000 and 414,000 eggs depending on her size. Maturity comes at about 11 inches. The fish reaches 20 inches and lives to 33 years. That is a complete enough picture to build an assessment on, and it stands in contrast to the honeycomb rockfish 2 squares away on the chart, for which none of those numbers exist.

What that record supports is the concern about the fishery. A fish maturing at 11 inches and reaching 20 has most of its reproductive output in the upper half of its size range, and a fecundity spread of 14,000 to 414,000 across that range means the large females are producing 20 or 30 times what the small ones do. When the mean size in the catch falls, what is falling is not just the weight per fish but the reproductive capacity left in the water. That is the argument behind the restrictions, and it is the same argument that runs through the brown rockfish, the widow rockfish and the cowcod on other pages of this encyclopedia.

The habitat detail is the other point worth keeping. Rockfish are treated as hard-bottom animals, and most of them are, but the greenspotted rockfish uses boulder fields, rock ledges and mud with apparently equal comfort. That flexibility puts it in a broader swath of seafloor than a strict reef fish occupies, and it is part of why it turns up in trawl catches as well as on hook and line. A fish that only lived on high-relief rock would be much harder to fish and much harder to deplete.

Where to Find Them

Beaches whose habitats match this species

Matched by habitat: a beach is listed when its biome tags overlap this species' biomes.