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Brachygenys jessiae (Jordan & Bollman, 1890)

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Brachygenys jessiae
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Galapagos Islands country information

Common names: [No common name]
Occurrence: endemic
Salinity: marine
Abundance: occasional (usually not seen) | Ref: Humann, P. and N. Deloach, 1993
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality: Santa María I. [Charles I.], Galápagos Is. (Ref. 26282). Also Ref. 94512.
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Allen, G.R. and D.R. Robertson, 1994
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Haemulidae (Grunts) > Haemulinae
Etymology: Brachygenys: Name from Greek βραχυζ (Brachy), short and ϒενυζ (genys), chin; referring to the small snout of the these species..
  More on authors: Jordan & Bollman.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 3 - 18 m (Ref. 5227), usually 3 - 11 m (Ref. 5227).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southeast Pacific: endemic to the Galapagos Islands.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 11482)

Biology     Glossary (e.g. epibenthic)

Forms large daytime aggregations along walls and over rocky slopes, often in somewhat protected areas (Ref. 5227).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, distinct pairing during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Allen, G.R. and D.R. Robertson, 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)

IUCN Red List Status (Ref. 130435)

  Vulnerable (VU) (B2ab(iii,v)c(iv); D2); Date assessed: 15 September 2022

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 23.5 - 24.6, mean 23.7 (based on 18 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.45 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (20 of 100).