Rosy rockfish
(Sebastes rosaceus)
Image source: Lauren Martin | inaturalist.org
General data
Sebastes rosaceus, the rosy rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the Eastern Pacific.
Sebastes rosaceus is a relatively small species of rockfish which has a body depth that is slightly more than a third of its standard length. They have a short, spine covered head with a short snout and a small terminal mouth and large eyes which bulge above the dorsal profile of the head.
They have 13 or 14 spines and 11 to 14 rays in their dorsal fin and their anal fin has 3 spines and 5 to 7 soft rays. They have a truncate caudal fin.
They attain a maximum total length of 36 cm (14 in).
The color varies from yellow to red to light pink with purple stripes on the head and upper body. There are 4 to 6 nearly square-shaped white blotches just underneath the dorsal fin. The membnranes of the fins are pink and yellow.
After being caught the typically quickly change color to a uniform deep red.
Sebastes tosaceus may be found as far north as Puget Sound in Washington but its main distribution is from central California to Guerrero Negro in Baja California Sur.
This is a demersal fish which can be found at depths between 15 and 128 m (49 and 420 ft), although more usual between 30 and 46 m (98 and 151 ft). They prefer hard substrates such as reefs or man-made structures like pilings.
