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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Malacosteinae
Etymology: Photostomias: Greek, photos = light + greek, stoma = mouth (Ref. 45335).
Eponymy: Jules Germain Maloteau de Guerne (1855–1931) was a French zoologist and geographer. [...] (Ref. 128868), visit book page.

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

Marine; bathypelagic; depth range 1138 - 3100 m (Ref. 5951). Deep-water; 40°N - 56°S

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

Western Atlantic: USA to the Gulf of Mexico (Ref. 4429); reported from the Antilles (Ref. 26340). Eastern Atlantic: southern Portugal to Mauritania. Northwest Atlantic: Canada (Ref. 5951). Indo-Pacific: in tropical and temperate areas (Ref. 559). Southeast Pacific: Chile (Ref. 9068).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 26340)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 22 - 28; Anal soft rays: 25 - 32. This species is distinguished by having 2 pairs of basibranchial tooth patches; D 23-26, A 27-30, the sum of dorsal- and anal-fin rays 50-56; male postorbital organ length moderate, specimens greater than 6.0 cm, 45.5-144.5% fleshy orbit, 7.8-28.1% jaw length (JL); male anterior orbital organ length moderate, specimens greater than 6.0 cm, 4.5-21.7% fleshy orbit, 0.8-4.9% JL (Ref. 75669)..

Mesopelagic species (Ref. 4469). Minimum depth from Ref. 58018.

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

Main reference Upload your references | References | Coordinator | Collaborators

Kenaley, C.P. and K.E. Hartel, 2005. A revision of Atlantic species of Photostomias (Teleostei: Stomiidae: Malacosteinae), with a description of a new species. Ichthyol. Res. 52(3):251-263. (Ref. 75669)

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

Least Concern (LC) ; Date assessed: 20 May 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 2.2 - 4.3, mean 2.9 °C (based on 1537 cells).

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

Bayesian length-weight: a=0.00407 (0.00157 - 0.01056), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.55 se; based on food items.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Photostomias guernei Collett, 1889