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

Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Phosichthyidae (Lightfishes)

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

Marine; benthopelagic; depth range ? - 350 m (Ref. 41740). Deep-water

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Western Pacific: Japan, East China Sea, and the Philippines.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 18.4 cm SL male/unsexed; (Ref. 41740)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 11 - 13; Anal spines: 0; Anal soft rays: 28 - 33; Vertebrae: 43 - 45. Differs from all species of Polymetme in having more fusiform and elongated body and a smaller head; pyloric caeca 7; photophores above anal fin 16-18 (Ref. 41740).

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

Main reference Upload your references | References | Coordinator | Collaborators

Parin, N.V. and O.D. Borodulina, 1990. Survey of the genus Polymetme (Photichthyidae) with a description of two new species. J. Ichthyol. 30(6):108-121. (Ref. 41740)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 16 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 6 - 18.6, mean 15 °C (based on 67 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00316 (0.00131 - 0.00766), b=3.17 (2.95 - 3.39), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (12 of 100).

Polymetme elongata (Matsubara, 1938)