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Alionematichthys crassiceps Møller & Schwarzhans, 2008

Bighead viviparous brotula
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Alionematichthys crassiceps   AquaMaps   Data sources: GBIF OBIS
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Image of Alionematichthys crassiceps (Bighead viviparous brotula)
Alionematichthys crassiceps
Male picture by W. Schwarzhans & P. R. Møller


Tonga country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tn.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/Tonga/tonga.htm
Occurrences: Occurrences Point map
Main Ref: Møller, P.R. and W. Schwarzhans, 2008
National Database:

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
Etymology: Alionematichthys: Name from Latin alius meaning the other or different, and nematichthys, the stem of the genus name Dinematichthys, to which this genus is most similar.;  crassiceps: Named for the characteristic big head (Latin crassus for thick and the adjective ending derived from caput or head; noun in apposition..
  More on authors: Møller & Schwarzhans.

Environment: milieu / climate zone / depth range / distribution range 生態学

関連する礁; 深さの範囲 0 - 5 m (Ref. 90102).   Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Eastern Indian Ocean: Western Australia (Ref. 88966). Western Pacific: along oceanic islands, from Micronesia (Palau, Chuuk, Pohnpei, Kapingamarangi Atoll), Hermit I., and the Kiriwina (Trobriand) Is., New Guinea, Vanuatu, Fiji to Tonga. Probable records from Taiwan (NW Pacific).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 6.3 cm SL オス/雌雄の選別がない; (Ref. 81230)

簡単な記述 検索表 | 形態学 | 形態計測学

背鰭 (合計) : 72 - 81; 臀鰭: 57 - 64; 脊つい: 41 - 43. This species is distinguished by the following characters: ; D 72-81; A 57-64; small eyes (1.3-2.5%SL); blunt snout, no cirri; cheeks with scales and 3-10 scales above opercular spine; with upper preopercular pore; outer pseudoclasper broad-based, simple flap like, while the inner one with free, forward-pointing anterior lobe and broad posterior lobe; otolith length to height 1.9-2.0, with rounded dorsal rim; otolith length to sulcus length 1.7-1.8, very short caudal, ostium length to cauda length 4.5-5.0 (Ref. 81230).

生物学     用語集 (例 epibenthic)

Cryptic, solitary inhabitant of shallow water, usually in rocky crevices (Ref. 90102). A 5.6 cm SL gravid female (USNM 394976) with 95 embryos, 0.41 cm TL in length, and approximately 50 orange eggs, 0.06 cm in diameter (Ref. 81230).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Møller, P.R. and W. Schwarzhans, 2008. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-west Pacific, Part IV. Dinematichthys and two new genera with descriptions of nine new species. The Beagle 24:87-146. (Ref. 81230)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 16 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

水産業: 興味がない
FAO(Publication : search) | FishSource |

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インターネットの情報源

Estimates based on models

Preferred temperature (Ref. 115969): 24.4 - 29.3, mean 28.4 (based on 1383 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).