Japan country information

Common names: Humpback brotula, Semushi-itachiuo
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Importance: of no interest | Ref: Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Suruga Bay and Tosa Bay (Ref. 559, 11230).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999
National Database:

Common names from other countries

粗寡须鳚, Duǎn tĭ dú zhĭ yòu wèi, 驼背独指乌鲂, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake.
More on authors: Smith & Radcliffe.

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

marina djupbottenlevande; djupintervall 45 - 345 m (Ref. 34024). Deep-water

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-West Pacific: Red Sea, Japan, East China Sea, and the Philippines.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 21.0 cm SL hane/ej könsbestämd; (Ref. 559)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 75 - 87; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 50 - 62. Body color reddish-brown. Head large and broad. Scales present on head. Opercular spine small, but with a sharp pointed tip. Attains 21 cm SL.

Uncommon species found on soft bottom (Ref. 34024). Ref. 9942 gives maximum depth to be 1,260 m.

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 04 February 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: saknar intresse

FAO(Publication : search) | FishSource |

Ytterligare information

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Estimates based on models

Preferred temperature (Ref. 115969): 12.9 - 26.5, mean 19.5 (based on 337 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00457 (0.00179 - 0.01169), b=3.10 (2.87 - 3.33), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (16 of 100).

Grammonus robustus Smith & Radcliffe, 1913