Galapagos Islands country information

Common names: [No common name]
Occurrence: endemic
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, Isla Darwin, CAS 86509 (holotype of Trachyscorpia osheri, 14.7 cm SL) (Ref. 75873). Also Ref. 83997.
National Checklist:
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Occurrences: Occurrences Point map
Main Ref: McCosker, J.E., 2008
National Database:

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

Teleostei (teleosts) > Perciformes/Scorpaenoidei (Scorpionfishes) > Sebastidae (Rockfishes, rockcods and thornyheads) > Sebastolobinae
Etymology: Trachyscorpia: Greek, trachys, -eia, y = rough + Greek, skorpis, idos = a kind of fish without identification (Ref. 45335); osheri: Named for Bernard A. Osher, fisherman, amateur ichtyologist and supporter of research and education..
More on author: McCosker.

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

Marine; benthopelagic; depth range 402 - 515 m (Ref. 75873). Tropical

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

Southeast Pacific:: Galápagos Islands

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 14.7 cm SL male/unsexed; (Ref. 75873)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 5 - 6; Vertebrae: 25. This species is distinguished by D XII, 9; vertebrae 25; presence of tympanic spines; well-developed upper-jaw lip, covering most of premaxillary band laterally; scales on lateral surface of maxilla absent; longitudinal scale rows about 59-60; second pelvic fin ray the longest; deeply notched pectoral fin, length of 11th ray 65% of that of 17th ray; deep body, its depth 37-39% SL; large orbit diameter, 14-15%SL; slightly convex head profile; no swimbladder; color reddish with white and black markings and smudges on portions of head, dorsal surface of flanks and fins (Ref. 75873).

Observed to inhabit boulder and sediment-laden bottoms, sitting along 30°-45° slopes (Ref. 75873).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

McCosker, J.E., 2008. Trachyscorpia osheri and Idiastion hageyi, two new species of deepwater scorpionfishes (Scorpaeniformes: Sebastidae, Scorpaenidae) from the Galápagos Islands. Proc. Calif. Acad. Scie. 59(3):113-123. (Ref. 75873)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; 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): 4.8 - 14, mean 10.9 (based on 78 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00912 (0.00410 - 0.02027), b=3.09 (2.89 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Trachyscorpia osheri McCosker, 2008