Actinopteri (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Gonostomatidae
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
Marine; bathypelagic; depth range 0 - 4389 m (Ref. 43939), usually ? - 800 m (Ref. 43939). Deep-water; 64°N - 20°N, 109°E - 122°W
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: Lm ?  range ? - ? cm
Max length : 13.3 cm SL male/unsexed; (Ref. 43939)
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.
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. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 0.3 - 15.6, mean 5.1 °C (based on 239 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this 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.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .