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

Teleostei (teleosts) > 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 Ecology

Marine; bathypelagic; depth range 0 - 4389 m (Ref. 43939), usually ? - 800 m (Ref. 43939). Deep-water; 64°N - 20°N, 109°E - 122°W

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

Pacific Ocean: widely distributed in subarctic to subtropical waters, mainly west of 143°W and north of 15°N. Most abundant in the northwest Pacific between the southern Kuril Islands and Taiwan. South China Sea and East China Sea (Ref.74511).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.3 cm SL male/unsexed; (Ref. 43939)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 14; Anal spines: 0; Anal soft rays: 26 - 30; Vertebrae: 40 - 42. A row of 6 widely separated photophores near dorsal profile of body; OA irregularly arranged; dorsal origin above 4th to 5th anal ray (Ref. 559).

Mesopelagic, nonmigratory at 200-1000 m (Ref. 58302). Migrates towards surface at night (Ref. 43939). Larvae and juveniles in upper 200 m (Ref. 43939). Minimum depth from Ref. 43939.

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

Also Ref. 103751.

Main reference Upload your references | References | Coordinator | Collaborators

Mecklenburg, C.W., T.A. Mecklenburg and L.K. Thorsteinson, 2002. Fishes of Alaska. American Fisheries Society, Bethesda, Maryland. xxxvii +1037 p. (Ref. 43939)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 15 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 0.3 - 15.6, mean 5.1 °C (based on 239 cells).

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

Bayesian length-weight: a=0.00138 (0.00053 - 0.00359), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.4 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).

Sigmops gracilis (Günther, 1878)