Stegastes rectifraenum
Cortez Damselfish
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Perciformes (Perciformes, Also Called the Acanthopteri)
Pomacentridae (Damselfishes)
Stegastes
Stegastes rectifraenum (Cortez Damselfish)
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: short and / or deep. Exhibits color variations. Striking features: none.
Distribution
Eastern Central Pacific: Mexico, including the Gulf of California.
Habitat Associations
Marine. reef-associated. depth range 1-10 m.
Biology
Adults inhabit rocky inshore reefs (Ref. 9334). Omnivorous (Ref. 9334). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Max length: 13.5 cm TL; common length: 8.0 cm TL; max age: 11 years.
Reproductive mode: dioecism; fertilization: external; guarders (nesters); parental care: paternal. Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
IUCN Red List Status: Least Concern (LC), assessed 2007-05-27. Resilience: Low (tmax=11).
References
Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Allen, G.R. (1991) Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p.
Montgomery, W.L. and S.D. Gerking (1980) Marine macroalgae as foods for fishes: an evaluation of potential food quality. Environ. Biol. Fishes 5(2):143-153.
Lundberg, J.G., F. Mago-Leccia and P. Nass (1991) Exallodontus aguanai, a new genus and species of Pimelodidae (Pisces: Siluriformes) from deep river channels of South America, and delimitation of the subfamily Pimelodinae. Proc. Biol. Soc. Wash. 104 (4):840-869.
Balart, E.F., A. González-Cabello, R.C. Romero-Ponce, A. Zayas-Alvarez, M. Calderón-Parra, L. Campos-Dávila and L.T. Findley (2006) Length-weight relationships of cryptic reef fishes for the southwestern Gulf of California, México. J. Appl. Ichthyol. 22:316-318.
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