Actinopteri (ray-finned fishes) > Tetraodontiformes
(Puffers and filefishes) > Monacanthidae
Etymology: Pervagor: Latin, pervagor = nomadic, itinerant.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated. Tropical; 30°N - 10°N
Western Indian Ocean: known only from the Red Sea and the Gulf of Aden.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.7 cm SL male/unsexed; (Ref. 527)
soft rays: 27 - 28;
Vertebrae: 19. Head and body brown; relatively large, black branchial blotch from mid-gill slit to rear border of eye; dusky blotch around eye continued onto forehead and around spinous dorsal base; dark brown iris; pale dusky brown lips. Large pelvic fin rudiment, narrowly attached to posterior margin of ventral flap. Midbody scales with 1-7 spinules, not closely packed; elongate spinules on posterior half of body. Scale spinules on posterior half of body of male very prominent, scale ridge rugosities developing at about 55-65 mm SL.
Occurs in shallow coral reefs to depths of 10 m or more.
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. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25.5 - 29.4, mean 27.9 °C (based on 120 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02138 (0.01034 - 0.04421), b=2.92 (2.74 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (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.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .