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Blenniiformes (Blennies) >
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).
More on authors: McCulloch & Waite.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino associati a barriera corallina; distribuzione batimetrica 0 - 12 m (Ref. 13227). Subtropical
Southwest Pacific: Australia, including Lord Howe Island, Norfolk Island, Middleton Reef, and Elizabeth Reef; and New Caledonia.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 6.6 cm SL maschio/sesso non determinato; (Ref. 54980)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 18 - 19; Raggi dorsali molli (totale) : 10 - 11; Spine anali: 2; Raggi anali molli: 20 - 21. Head to eye and preopercle with scales; small and palmate supraorbital tentacle; light gray or light brown body with 2 linear series of uneven brown blotches with larger dorsal series and some upper blotches joining with lower; below eye is an oblique, dark brown bar with white margin; remainder of head dark brown, blending to white ventrally; females with oblique dark bands on second and third dorsal fins, darkening as they cross rays; uneven, vertical dark bars on caudal fin; yellow or orange dorsal and caudal fins in males. Dorsal rays IV + XIV-XV (typically XV) + 10-11 (typically 11); lateral line discontinuous, 21-24 + 14-19; mandibular pores 5-6 + 1 + 5-6 (Ref. 54980).
Body shape (shape guide): elongated.
Adults are found in intertidal pools in coral reef areas (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).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Fricke, R., 1994. Tripterygiid fishes of Australia, New Zealand and the southwest Pacific Ocean (Teleostei). Theses Zool. 24:1-585. (Ref. 13227)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
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Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 23.2 - 27.9, mean 26.4 °C (based on 383 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00290 - 0.01310), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Low vulnerability (10 of 100).
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Nutrienti (Ref.
124155): Calcium = 167 [66, 399] mg/100g; Iron = 1.29 [0.60, 2.61] mg/100g; Protein = 19.1 [17.8, 20.4] %; Omega3 = 0.147 [0.060, 0.365] g/100g; Selenium = 15.4 [4.9, 42.6] μg/100g; VitaminA = 47.7 [11.0, 220.5] μg/100g; Zinc = 2 [1, 3] mg/100g (wet weight);