China Rock FishÂ
Common Name: China Rockfish
Scientific Name: Sebastes nebulosus
Size Range: 26 – 45cm
Weight: 4.2lbÂ
Identification The China Rockfish also known as the yellowstripe rockfish is a species of ray-finned fish. They are black in colour and speckled in yellow and white. Their most identifiable feature is the bright yellow stripe going down from their third spine of their dorsal fin to along the lateral line and ending at the start of their tail. Â
Distribution These fish are found in the Pacific Ocean along the West Coast. Their population ranges from Alaska, specifically Kodiak Island all the way down to southern California though they are most commonly found around BC. The China Rockfish is found mainly in rocky habitats where they can easily anchor themselves into crevices using their spines along their fins. They are found at depths of around 3 meters going as deep as 128 meters (10-420 ft). They are very sedentary fish which means that once they find a place to live they won’t stray very far from their home. They have also been seen inhabiting the same place as the Giant Pacific Octopus.
Reproduction For about two months the larvae of this fish feed on other smaller zooplankton floating around them until they grow into juveniles. Both Juveniles and the adult China Rockfish eat crustaceans such as decorator crabs and rock crabs but the adults also eat creatures such as mollusks, brittle stars and other smaller fish.
Predators The predators that hunt the juvenile rockfish include porpoises and sea birds as well as other fish such as lingcod, cabezon and salmon. The adults are hunted by lingcod as well as some marine mammals including sharks, seals and dolphins. To escape these predators the rockfish hides in the crevices of rocks, wedging its spines into the cracks and stiffening them to anchor into the rock making it harder for predators to pull them out. When threatened they also erect their spines to try and seem more intimidating to predators.
The female China Rockfish are viviparous which means that their eggs develop internally and they give birth to live young in their larval stage. The larvae will then float along in the ocean with other zooplankton for 1 – 2 months before finding a rocky reef or kelp forest to stay on as they grow into juveniles. The China Rockfish is fully grown at around 3 to 6 years old and they can live up to 79 years.Â
References
China Rockfish – Oregon Coast Aquarium. (2026, January 16). Oregon Coast Aquarium. https://aquarium.org/animals/china-rockfish/Â
China Rockfish. (2025). Washington Department of Fish & Wildlife. https://wdfw.wa.gov/species-habitats/species/sebastes-nebulosusÂ
CA Marine Species Portal. (2026). Ca.gov. https://marinespecies.wildlife.ca.gov/china-rockfish/Â
Oregon. (2026). China rockfish – Facts, Diet, Habitat & Pictures on Animalia.bio. Animalia.bio. https://animalia.bio/china-rockfishÂ