How to Identify Gopher Rockfish

To identify Gopher Rockfish (Sebastes carnatus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Highly variable, typically mottled with dark brown, black, and reddish-brown patches on a lighter background (pinkish, whitish, or yellowish). This cryptic coloration allows for excellent camouflage. Often has a pale, flesh-colored (carnatus) blotch on the side, which is a key identifying feature.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Mottled coloration with dark brown/black patches on a lighter background., Often a pale, flesh-colored blotch on the side, below the posterior part of the dorsal fin., Strongly compressed body., Large mouth with a slightly projecting lower jaw., Prominent spines on the head and dorsal fin.

Dorsal fin

Single, long dorsal fin with 13 spines and 12-14 soft rays. The spinous portion is deeply notched from the soft-rayed portion.

Tail fin

Truncate to slightly emarginate caudal fin.

Pectoral fin

Large, rounded pectoral fins with 16-18 rays.

Distinctive fins

Anal fin with 3 spines and 6-7 soft rays. Pelvic fins thoracic with 1 spine and 5 soft rays.

Identification Tips

1. 1

   Coloration and Pattern

   Look for the distinctive mottled pattern of dark brown/black on a lighter background (pinkish, whitish, or yellowish). The pale, flesh-colored blotch on the side, often below the posterior dorsal fin, is a strong indicator.

2. 2

   Head Spines

   Examine the head for prominent spines, particularly above the eyes and on the operculum. While common in rockfish, the specific arrangement can aid in differentiation.

3. 3

   Dorsal Fin

   Count the dorsal fin spines (13) and soft rays (12-14). Note the deep notch between the spinous and soft-rayed portions.

4. 4

   Size

   Gopher Rockfish are generally smaller than many other rockfish species, typically reaching a maximum length of about 37 cm (14.5 inches).

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