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Pervagor alternans  (Ogilby, 1899)

Yelloweye filefish
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Pervagor alternans
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Tetraodontiformes (Puffers and filefishes) > Monacanthidae (Filefishes)
Etymology: Pervagor: Latin, pervagor = nomadic, itinerant.

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

Marine; reef-associated; depth range 15 - ? m (Ref. 9710).   Tropical; 15°N - 40°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: east coast of Australia, Lord Howe Island, New Caledonia, and the Marshall Islands. Recently recorded from Tonga (Ref. 53797). Described as an antitropical species.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 9710)

Short description Morphology | Morphometrics

Dorsal spines (total): 1 - 2; Dorsal soft rays (total): 31-34; Anal spines: 0; Anal soft rays: 27 - 31; Vertebrae: 19. A strong first dorsal spine armed with 2 rows of prominent, laterally-directed barbs. Posterior margin of ventral flap not attached to large and barbed pelvic rudiment. Distinguished by a bright yellow ring around the eye (Ref. 1602). Head and body blackish brown to pale, pinkish brown; blackish band usually encircling the snout; eyes and surrounding area bright yellow. Caudal fin generally orange; soft dorsal and anal fins spotted, clear or yellowish orange basally; pectoral fins clear, base blackish brown. Scales on posterior half of body with spinules, number increasing with age; adult male with scale rugosities

Biology     Glossary (e.g. epibenthic)

Uncommon species that occurs in coral and rocky reefs to a depth of about 15 m (Ref. 9710).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Hutchins, Barry | Collaborators

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. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

More information

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01058 - 0.04524), b=2.91 (2.73 - 3.09), 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. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (24 of 100) .