Actinopteri (ray-finned fishes) > Lophiiformes
(Anglerfishes) > Gigantactinidae
Etymology: Gigantactis: Greek, 'gigas' or 'gigantos' = gigantic + Greek, 'aktis' = ray (referring to the unusually long first dorsal-fin spine that functions as a lure in this genus) (Ref. 86949).
More on authors: Beebe & Crane.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 670 - 2000 m (Ref. 559). Deep-water
Pacific Ocean: Japan, Indonesia and Hawaii (Ref. 559); Chile (Ref. 9068). Also in the Northwest Atlantic and South Atlantic.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.3 cm SL (female)
Morphology | Morphometrics
soft rays: 5 - 7. Metamorphosed females distinguished by the following characteristics: have extremely large distal prolongation of escal bulb, entire escal densely covered with slightly elongated papillae; length of illicium less than 120% SL (74-111%SL in specimens greater than 30mm); pair of posterior escal appendages; large dentary teeth (longest 2.2-5.9% SL), arranged in two irregular longitudinal series; rays of caudal fin less than 35% SL (Ref. 86949).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 2.7 - 6.1, mean 4.4 °C (based on 901 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low vulnerability (17 of 100).