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Teleostei (teleosts) > Blenniiformes (Blennies) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Apopterygion: Greek, apo = outside + Greek, pterygion = diminutive of pteryx = fin (Ref. 45335); oculus: Oculus (Latin) means "eye", and refers to the ocellate black bloch on the second dorsal fin.
More on authors: Fricke & Roberts.

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

Marine; demersal; non-migratory; depth range 14 - 186 m (Ref. 13227). Temperate

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Southwest Pacific: endemic to New Zealand.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.3 cm SL male/unsexed; (Ref. 13227)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 16 - 19; Dorsal soft rays (total): 9 - 13; Anal spines: 2; Anal soft rays: 20 - 26. 19-25 pored scales in the anterior lateral line series, 16-20 notched scales in the posterior series, the second dorsal fin with an ocellate black blotch distally on 4th-6th membranes, the anal fin with about 11 dark streaks, the pelvic fin basally black, rays distally yellowish, with brown spots, and the dorsal fin spines densely covered with small spinules.

Adults are said to be associated with red coralline gravel and shell substrates (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

Main reference Upload your references | References | Coordinator : Fricke, Ronald | Collaborators

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. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 04 May 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Estimates based on models

Preferred temperature (Ref. 123201): 8.8 - 15.6, mean 12 °C (based on 36 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00794 (0.00346 - 0.01822), b=3.08 (2.88 - 3.28), 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.).

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

Apopterygion oculus Fricke & Roberts, 1994