South Africa country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs off Saldanha. Also Ref. 4463.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Schaefer, S., R.K. Johnson and J. Badcock, 1986
National Database:

Common names from other countries

Elongate portholefish, Elongated bristle-mouth fish, Elongate fangjaw, ... more

Classification / Names Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Stomiiformes (Lightfishes and dragonfishes) > Gonostomatidae (Bristlemouths)
Etymology: Sigmops: Taken from the name of the letter "S, sigma" (Ref. 45335).
More on author: Günther.

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

marin bathypélagique; profondeur 25 - 4740 m (Ref. 58018), usually 100 - 1500 m. Deep-water; 65°N -

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Worldwide. Mediterranean (Ref. 85016). Eastern Atlantic: scattered records from Iceland (Ref. 4769) south to Cape Verde and Gulf of Guinea; also between 30°S-35°S. Western Atlantic: Gulf of Mexico (Ref. 27768). North Atlantic: 65°-30°N. Indo-Pacific: in tropical and subtropical waters. Eastern Pacific: found in California and Baja California (Ref. 35800), and Chile (Ref. 9068). Indian Ocean, tropical and subtropical waters (Ref. 47377). South China Sea and East China Sea (Ref.74511).

Length at first maturity / Taille / Poids / Âge

Maturity: L_m ?, range 20 - ? cm
Max length : 27.5 cm TL mâle / non sexé; (Ref. 4463)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 11 - 15; Épines anales: 0; Rayons mous anaux: 27 - 32; Vertèbres: 39 - 41. Black in color, slightly silvery laterally; fins dusky and with small black spots; distal portion of pectorals and pelvic fins colorless (Ref. 3991). Dorsal adipose fin present. Branchiostegal rays: 12-13 (Ref. 35800).

Meso- to bathypelagic (Ref. 58302). Occur between 100-200 m and 500-800 m at night and 25-600 m and 1,250-1,500 m during the day (Ref. 4463). Feed on crustaceans and small fishes (Ref. 4769). Photophores develop in fishes over 6-22 mm SL (Ref. 4769). Protandric hermaphrodite, oviparous with planktonic eggs and larvae (Ref. 35800). Minimum depth from Ref. 4463.

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

Oviparous (Ref. 35800).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Gonostomatidae. p. 283-292. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4463)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Préoccupation mineure (LC) ; Date assessed: 16 May 2013

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: sans intérêt

FAO(Publication : search) | FishSource |

Plus d'informations

Trophic ecology
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Population dynamics
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Estimates based on models

Preferred temperature (Ref. 115969): 2.9 - 19.2, mean 6.9 (based on 5921 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00288 (0.00166 - 0.00500), b=3.03 (2.87 - 3.19), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Niveau trophique (Ref. 69278): 3.3 ±0.40 se; based on food items.

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (18 of 100).

Sigmops elongatus (Günther, 1878)