Astronesthes ijimai, Ijima's snaggletooth

Astronesthes ijimai Tanaka, 1908

Ijima's snaggletooth
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Astronesthes ijimai   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Astronesthinae
Etymology: Astronesthes: Greek, astra = ray + Greek, esthes, -es = suit, something used to wrap (Ref. 45335).
Eponymy: Professor Dr Isao Ijima (1861–1921) was Professor of Zoology at Science College, Imperial University of Tokyo (1885–1921) from where he had graduated (1881). [...] (Ref. 128868), visit book page.
More on author: Tanaka.

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

Marine; bathypelagic; depth range 154 - 500 m (Ref. 41299). Deep-water

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

Indo-West Pacific: Japan and adjacent waters of Indonesia, Indian Ocean.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref. 41299)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 11 - 13; Anal spines: 0; Anal soft rays: 17 - 21; Vertebrae: 53 - 56.
Body shape (shape guide): elongated.

Biology     Glossary (e.g. epibenthic)

Found on continental slopes and seamounts (Ref. 41299). Mesopelagic species (Ref. 75154).

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

Main reference Upload your references | References | Coordinator | Collaborators

Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition I. Tokai University Press, Japan, pp v-866. (Ref. 41299)

IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 18 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Eggs
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Larvae
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Distribution
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Anatomy
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Stamps, coins, misc.
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Taxonomy
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References
References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Catch-MSY |

Special reports

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index
(Ref. 82804) 		PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00417 (0.00170 - 0.01023), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level
(Ref. 69278) 		3.9   ±0.6 se; based on size and trophs of closest relatives
Resilience
(Ref. 120179) 		Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Fishing Vulnerability
(Ref. 59153) 		Low to moderate vulnerability (27 of 100). 🛈