Tonga country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Collected from Vava'u, Onetole Bay (Ref. 42180).
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: McCosker, J.E. and J.E. Randall, 2001
National Database:

Common names from other countries

Crocodile snake-eel, Reptilian snake eel, Krokodil-slangpaling, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Anguilliformes (Eels and morays) > Ophichthidae (Snake eels) > Ophichthinae
Etymology: Brachysomophis: Greek, brachys, eia = short + Greek, soma = body + Greek, ophis = serpent (Ref. 45335); crocodilinus: crocodilinus in reference to its appearance (Ref. 42180).
More on author: Bennett.

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

marien rifbewoner; diepte 0 - 30 m (Ref. 42180), usually 0 - 2 m (Ref. 42180). Tropical

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Indo-Pacific: East Africa in Tanzania, Seychelles and Mauritius (Ref. 3972), to the Society Islands (but not the Hawaiian Archipelago), north to Japan, south to Australia (Ref. 33390).

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 120 cm TL mannelijk / geslacht onbekend; (Ref. 9710)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Wervels: 116 - 124. Diagnosis: Dorsal fin arising well behind pectoral tips; pectoral fins teardrop-shaped; snout very short; jaws elongate; anterior nostril in a very short tube in upper lip, closely followed by an ethmoidal pore, a barbel, and the posterior nostril which is in outer lip and entirely covered by a flap; labial cirri numerous, unbranched and slender in anterior half of lip of mandible, those posterior and along lower lip branched at tips; flesh above and behind eye laterally elevated as a ridge; dorsal head profile notably incised and medially constricted behind eyes, the flesh forming a narrow transverse ridge behind dorsal margin of eyes; head pores and lateral-line pores apparent; free sensory neuromasts visible as rows of small white spots on nape; teeth conical (Ref. 42180). Lateral-line pores and temporal pores typically in dark spots; smaller dark spots present irregularly on flank between lateral line and dorsal fin of larger specimens (Ref. 42180). Eye small, coloured like the head, and placed towards the front of the long mouth (Ref. 48635).

Generally found in shallow lagoon sand, rock and broken coral substrates at depths of 0-2 m (Ref. 42180). Benthic (Ref. 58302), occurs in sandy bottoms from intertidal to over 12 m.; remains buried in sand with only the eyes protruding where it waits to ambush fish (Ref. 9710) and octopuses (Ref. 275). Used in Chinese medicine (Ref. 12166).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator : McCosker, John E. | Medewerkers

McCosker, J.E. and J.E. Randall, 2001. Revision of the snake-eel genus Brachysomophis (Anguilliformes: Ophichthidae), with description of two new species and comments on the species of Mystriophis. Indo-Pac. Fish. (33):1-32. (Ref. 42180)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 19 November 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 29.3, mean 28.3 (based on 2746 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00089 (0.00039 - 0.00204), b=3.00 (2.80 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 4.1 ±0.58 se; based on food items.

Weerstandsvermogen (Ref. 120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (72 of 100).

Brachysomophis crocodilinus (Bennett, 1833)