Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Sternoptychidae
(Marine hatchetfishes) > Sternoptychinae
Etymology: Polyipnus: Greek, poly = a lot of + Greek, ipnos = lanterns. More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range ? - 1023 m (Ref. 26282). Deep-water
Western Pacific: collected off east coast of the Philippines and in the central Philippine Sea near the Kyushu-Palau Ridge.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 26382)
Morphology | Morphometrics
soft rays: 11 - 12. Polyipnus fraseri is distinguished from all other Polyipnus by the presence of a unique posterior preopercular spine, absence of ACA photophores, and only four ACB photophores at SL over 2 cm (Ref. 26382).
Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Harold, A.S., 1994. A taxonomic revision of the sternoptychid genus Polyipnus (Teleostei: Stomiiformes) with an analysis of phylogenetic relationships. Bull. Mar. Sci. 54(2):428-534. (Ref. 26382)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 1.6 - 17.3, mean 11.6 (based on 195 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00643 - 0.04091), b=3.06 (2.84 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .