How to Identify Kichiji Rockfish

To identify Kichiji Rockfish (Sebastes joyneri), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Predominantly bright red to reddish-orange, often with darker blotches or bands on the back and sides. The fins are typically reddish.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Large, prominent eyes, adapted for low light conditions in deep water., Spiny dorsal fin with venomous spines., Relatively large mouth., Body covered in ctenoid scales.

Dorsal fin

Single dorsal fin, deeply notched, with 13-14 strong, venomous spines anteriorly and 12-14 soft rays posteriorly.

Tail fin

Truncate to slightly emarginate caudal fin.

Pectoral fin

Large and fan-like, with 17-19 rays.

Distinctive fins

Pelvic fins are thoracic, with one spine and five soft rays. Anal fin has 3 spines and 7-9 soft rays.

Identification Tips

1. 1

   Coloration

   Its striking bright red to reddish-orange body is a key identifier, especially when fresh.

2. 2

   Eyes

   The disproportionately large eyes are a clear adaptation to its deep-water habitat and distinguish it from many shallower-water rockfish.

3. 3

   Dorsal Fin Spines

   Count the dorsal fin spines (13-14) and soft rays (12-14) for precise identification, though caution is advised due to venom.

4. 4

   Size

   Generally smaller than many other rockfish species, typically under 40 cm.

Explore Kichiji Rockfish