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:

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Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | 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 Ecologia

marinhas associadas(os) a recifes; intervalo de profundidade 0 - 5 m (Ref. 90102). Tropical

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | 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).

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 6.3 cm SL macho/indeterminado; (Ref. 81230)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Raios dorsais (total) : 72 - 81; Raios anais : 57 - 64; Vértebras: 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).

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).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Status na Lista Vermelha da UICN (Ref. 130435)

Segura ou pouco preocupante (LC) ; Date assessed: 16 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

Pescarias: sem interesse

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 24.4 - 29.3, mean 28.4 (based on 1383 cells).

Índice de diversidade filogenética (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).

Nível Trófico (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

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

Alionematichthys crassiceps Møller & Schwarzhans, 2008