Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 7 m (Ref. 84085). Temperate
Southwest Pacific: southeastern Tasmania, Australia and New Zealand.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.6 cm SL male/unsexed; (Ref. 13227)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 25 - 30; Dorsal soft rays (total): 14 - 16; Anal spines: 2; Anal soft rays: 25 - 27; Vertebrae: 44 - 46. Snout profile steep, line drawn through tip of premaxilla across ventral margin of orbit touches or passes anterodorsal to dorsal extremity of preoperculum. Transverse groove in front of first
dorsal fin containing cephalic sensory pore. Scales absent in front of first dorsal fin first spine, naked immediately adjacent to first dorsal, but many small ctenoid scales adjacent to post-temporal. First lateral line scale with one group of ctenii at upper posterior edge, second scale onward, with two groups of ctenii at upper and middle posterior edges. Dorsal fin formula V-0N-0-1-0-1 (Ref. 84085).
Facultative air-breathing in the genus (Ref. 126274); Adults occur in rocky shores and occasionally in exposed rocky pools (Ref. 13227). Also common on wharf piles among encrusting invertebrates. Depth to at least 7 m (Ref. 84085).
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. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 13.5 - 16.3, mean 15.3 °C (based on 137 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00288 - 0.01322), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±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).
Nutrients (Ref.
124155): Calcium = 209 [108, 585] mg/100g; Iron = 0.779 [0.388, 1.602] mg/100g; Protein = 18 [17, 19] %; Omega3 = 0.387 [0.157, 0.946] g/100g; Selenium = 9.32 [3.44, 24.44] μg/100g; VitaminA = 14.8 [3.1, 70.0] μg/100g; Zinc = 1.32 [0.79, 2.14] mg/100g (wet weight);
