Norfolkia brachylepis, Tropical scaly-headed triplefin

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Norfolkia brachylepis (Schultz, 1960)

Tropical scaly-headed triplefin
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Norfolkia brachylepis   AquaMaps   Data sources: GBIF OBIS
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Image of Norfolkia brachylepis (Tropical scaly-headed triplefin)
Norfolkia brachylepis
Picture by Randall, J.E.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Perciformes (Perch-likes) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Norfolkia: Named for the Norfolk Island ( In 1953 Henry W. Fowler named this new genus on a Collection of Fishes Made by Dr. Marshall Laird at Norfolk Island) (R.Bajol, pers.comm. 04/2016).;  brachylepis: Named for the scales on the pectoral fin base (Latin 'brachium' for upper arm and 'lepis' for a scale of a fish) (R. Bajol, pers.comm. 04/16).  More on author: Schultz.

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

; marien rifbewoner; diepteverspreiding 1 - 25 m (Ref. 90102), usually 2 - 7 m (Ref. 13227).   Tropical; 16°N - 15°S

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Indo-West Pacific: Red Sea to Fiji, north to the Izu Islands, south to southwest and southeast Australia and New Calednonia. Recently recorded from Tonga (Ref. 53797).

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 7.3 cm TL mannelijk/geslacht niet bekend; (Ref. 11441)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 18 - 19; Dorsale zachte stralen (totaal): 10-11; Anale stekels 2; Anale zachte stralen: 20 - 21. Diagnosis: Dorsal fins IV + XIV-XV + 10-11 (IV+XV+11); anal fin II, 20-21 (21), spine length half of the rays; pectoral rays 16, dorsalmost 2-3 and ventral most 7 simple, remainder branched once; pelvic rays bound together by membrane for less than one-fourth of length of shorter ray. Lateral line pored scales 21-24 (22), terminates between 2nd and 3rd dorsal fins; notched scales and 14-19 (16); total lateral scales 32-35 (34). Dentary pores 5-6 + 1 + 5-6. Orbital and nasal cirri palmate and about as large as pupil diameter. Dorsal fin also with cirri at tips of spines. Head 2.9-3.6 (3.3) in SL, eye 3.0–3.9 (3.3), maxilla 2.3-3.0 (2.6) and snout 3.3-4.9 (3.8) in head length (Ref. 88983). Heavily pigmented (Ref. 1602). Overall greyish or brownish with 5 white saddles on dorsal side extending to fins, eye bar black and broad, anal fin vertical bands black, caudal fin bands grey and white (Ref. 90102).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Adults inhabit coral or rock, often under ledges, on clear lagoon and seaward reefs (Ref. 13227). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator : Fricke, Ronald | Medewerkers

Fricke, R., 1994. Tripterygiid fishes of Australia, New Zealand and the southwest Pacific Ocean (Teleostei). Theses Zool. 24:1-585. (Ref. 13227)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Niet bedreigd (LC) ; Date assessed: 07 May 2010

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 27.6 - 29.3, mean 28.7 (based on 1848 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00248 - 0.01216), b=3.08 (2.89 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid (Ref. 59153):  Low vulnerability (10 of 100) .