Sebastes chrysomelas

Sebastes chrysomelas, commonly known as the black-and-yellow rockfish, is a marine fish species of the family Sebastidae. It is found in rocky areas in the Pacific off California and Baja California. Although it is similar in appearance to the China rockfish, it lacks the China's long yellow streak. Its distribution is also more to the south than the China.[2]

The black-and-yellow rockfish has speckles that are similar to the China rockfish, but lacks the long yellow streak starting at the foredorsal fin curves.[2]

Black-and-yellow rockfish
Black-and-yellow rockfish in the Channel Islands National Marine Sanctuary.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Scorpaeniformes
Family:	Sebastidae
Genus:	Sebastes
Species:	S. chrysomelas
Binomial name
Sebastes chrysomelas (D. S. Jordan & C. H. Gilbert, 1881)[1]

Genetics

A potential PCR-RFLP genetic sex marker developed for gopher rockfish.[3] In the original study, the marker was able to successfully distinguish male and female black-and-yellow rockfish,[3] but it was unsuccessful in a subsequent study using the same method.[4]

References

1. http://fishbase.org/Summary/speciesSummary.php?ID=3959&genusname=Sebastes&speciesname=chrysomelas
2. Paul Humann (1996). Coastal Fish Identification California to Alaska. New World Publications, Inc. ISBN 1-878348-17-5. page 27
3. Fowler, Benjamin L.S.; Buonaccorsi, Vincent P. (2016). "Genomic characterization of sex‐identification markers in Sebastes carnatus and Sebastes chrysomelas rockfishes". Molecular Ecology. 25 (10): 2165–2175. doi:10.1111/mec.13594.
4. Vaux, Felix; Aycock, Hannah M.; Bohn, Sandra; Rasmuson, Leif K.; O'Malley, Kathleen G. (2020). "Sex identification PCR–RFLP assay tested in eight species of Sebastes rockfish". Conservation Genetics Resources. 12: 541–544. doi:10.1007/s12686-020-01150-y.

External links

• Photos of Sebastes chrysomelas on Sealife Collection