Actinopteri (ray-finned fishes) > 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 author: Whitley.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 20 m (Ref. 13227). Tropical
Western Pacific: Western Australia in the eastern Indian Ocean to New Caledonia, Rapa, the Tuamoto Archipelago and Mangaréva.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL male/unsexed; (Ref. 54980)
Morphology | Morphometrics
(total): 18 - 19;
soft rays: 20 - 22. Scales from head posteriorly to behind the eye but none on cheek; lobate supraorbital tentacle; body coloration white; yellow or orange on scale edges; 6 uneven, oblique, dark brown bands bifurcating ventrally; uneven brown bar below eye with white posterior border; females with thin, oblique, red and white bands on second and third dorsal fins; dull orange in males. Dorsal rays IV + XIV-XV + 9-11 (typically XV + 10); pectoral rays usually 15; lateral line discontinuous, 12-15 + 24-27; mandibular pores 3 + 2 + 3 (Ref. 54980).
Adults are found in coral reefs and intertidal pools (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
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fricke, R., 1994. Tripterygiid fishes of Australia, New Zealand and the southwest Pacific Ocean (Teleostei). Theses Zool. 24:1-585. (Ref. 13227)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.3 - 28.6, mean 26.6 °C (based on 778 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00246 - 0.01227), 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
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Nutrients (Ref. 124155
): Calcium = 272 [142, 646] mg/100g ; Iron = 1.11 [0.68, 2.01] mg/100g ; Protein = 18.8 [17.6, 19.9] % ; Omega3 = 0.136 [0.072, 0.263] g/100g ; Selenium = 27.7 [12.3, 58.9] μg/100g ; VitaminA = 99.5 [31.5, 310.8] μg/100g ; Zinc = 2.28 [1.46, 3.51] mg/100g (wet weight);