Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 8 - 20 m (Ref. 9710). Tropical; 35°N - 35°S
Indo-Pacific: East Africa to Samoa, north to southern Japan, south to New South Wales and Tonga.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL male/unsexed; (Ref. 48637)
Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 29 - 34; Anal spines: 0; Anal soft rays: 26 - 30. Body and head color variable. Blackish to dark bluish branchial blotch extending dorsally to level well above the lower margin of eye and may include ventrally the pectoral fin base and axil. Iris usually dark brown. Orange to red caudal fin soft dorsal and anal fins clear, orange or yellow with spots; pectorals clear. Scale spinulation at midbody closely packed. Male scale ridge rugosities develop at about 80 mm SL developed. Strong first dorsal spine. Large pelvic fin rudiment narrowly attached to posterior margin of ventral flap.
Occurs in shallow lagoons and seaward reefs to a depth of about 15 m; common in coral-rich areas. Secretive species (Ref. 9710, 48637) among rocks, sponges or in crevices on the bases of large coral formations. Adults usually form pairs but often only one is observed while the other one is hiding (Ref. 48637).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hutchins, J.B., 1986. Review of the monacanthid fish genus Pervagor, with descriptions of two new species. Indo-Pac. Fish. (12):35 p. (Ref. 527)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 23.7 - 29.2, mean 28.1 °C (based on 2532 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.01135 - 0.03508), b=2.93 (2.77 - 3.09), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±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 = 77.8 [33.2, 197.0] mg/100g; Iron = 0.798 [0.360, 1.897] mg/100g; Protein = 17.9 [15.6, 20.1] %; Omega3 = 0.105 [0.049, 0.217] g/100g; Selenium = 25.1 [11.9, 58.5] μg/100g; VitaminA = 80.3 [22.1, 293.9] μg/100g; Zinc = 1.66 [1.06, 2.64] mg/100g (wet weight);
