Teleostei (teleosts) >
Argentiniformes (Marine smelts) >
Argentinidae (Argentines or herring smelts)
Etymology: Glossanodon: Greek, glossa = tongue + Greek, anodos = without teeth (Ref. 45335); kotakamaru: Named for the National Research Institute of Fisheries Science research vessel Kotaka-maru, from which the paratypes and many other scientific specimens from Tosa Bay were collected.
Eponymy: This species is named after the Research Vessel ‘Kotaka-maru’ which belonged to the National Research Institute of Fisheries Science, Kochi, Japan. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; depth range 146 - 300 m (Ref. 84005). Deep-water
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 12 - 13; Anal soft rays: 11 - 13; Vertebrae: 49 - 50. This species is unique in having the following set of characters: D 12-13; A 11-13; pectoral-fin rays 21-23; pelvic-fin rays 13-14; branchiostegal rays 5; gill-rakers on first arch 37-40; vertebrae
49-50; small conical teeth on middle of lower jaws 2-4, teeth on tongue and 1-3; predorsal 48-49% SL; prepectoral 29-30% SL; prepelvic 55-56% SL; distance from pelvic to anal-fin origins 30-31% SL; caudal peduncle depth 5.5-5.9%; HL and 29-30% SL; eye diameter 32-33% HL; snout length 33% HL; maxillary depth 12% HL; anus immediately anterior to anal-fin origin; large black blotches on upper and lower opercular region 2; a black longitudinal stripe running dorsal to lateral line; pigmented isthmus to thorax and fin bases; no melanophores externally on chest to anus (Ref. 84005).
Occurs over muddy and sandy bottoms, at depths of about 150-300 m; young specimens
collected at 146-234 m (Ref. 84005).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Endo, H. and K. Nashida, 2010. Glossanodon kotakamaru, a new Argentine fish from southern Japan (Protacanthopterygii: Argentinidae). Bull. Natl. Mus. Nat. Sci., Ser. A, (Suppl. 4):119-127. (Ref. 84005)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00163 - 0.00807), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 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 (10 of 100).
![Image of Glossanodon kotakamaru (Kotaka\](/images/thumbnails/jpg/tn_Glkot_u0.jpg "Image of Glossanodon kotakamaru (Kotaka\")
