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Pseudobalistes fuscus  (Bloch & Schneider, 1801)

Yellow-spotted triggerfish
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Pseudobalistes fuscus   AquaMaps   Data sources: GBIF OBIS
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Image of Pseudobalistes fuscus (Yellow-spotted triggerfish)
Pseudobalistes fuscus
Picture by Randall, J.E.

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

Actinopterygii (ray-finned fishes) > Tetraodontiformes (Puffers and filefishes) > Balistidae (Triggerfishes)
Etymology: Pseudobalistes: Greek, pseudes = false + Greek, ballo = to throw (Ref. 45335).

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

Marine; reef-associated; depth range 30 - 50 m (Ref. 1602).   Tropical; 32°N - 24°S, 30°E - 145°W

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

Indo-Pacific: Red Sea south to Durban, South Africa (Ref. 4420) and east to the Society Islands, north to southern Japan, south to the southern Great Barrier Reef in Australia and New Caledonia. Uncommon in the Pacific (Ref. 9710).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 55.0 cm TL male/unsexed; (Ref. 9770)

Short description Morphology | Morphometrics

Dorsal spines (total): 3; Dorsal soft rays (total): 24-27; Anal spines: 0; Anal soft rays: 19 - 24. Dark brown, scales with yellow spot; pectoral, soft dorsal, anal and caudal fins dark with yellow margins; juveniles yellowish brown with bluish grey spots and blotches (Ref. 4420). Juveniles under about 5 cm, tan with dark saddles and numerous dark wavy lines on the body. Larger juveniles loose the dark saddles and become covered in a network of brilliant blue lines which become increasingly interconnected with growth (Ref. 37816).

Biology     Glossary (e.g. epibenthic)

Occur in clear shallow lagoons and seaward reefs; sandy areas near reef patches of reef edge are preferred. Adults on deep reefs or with shipwrecks, usually deeper than 30 meters. Juveniles inshore on rubble reef or small outcrops on open substrate (Ref. 48637). Feed on sea urchins, crustaceans, mollusks, dead fish, tunicates or corals (Ref. 5503). Oviparous (Ref. 205). Monogamous (Ref. 52884). Also caught with drive-in nets. Marketed fresh and dried-salted (Ref. 9770).

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

Distinct pairing (Ref. 205). Nest-guarding females are aggressive (Ref. 9770). Females are territorial, solely tending and guarding the eggs. Males exhibit polygyny (Ref. 116451).

Main reference Upload your references | References | Coordinator : Matsuura, Keiichi | Collaborators

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquarium: commercial
FAO(Publication : search) | FishSource | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.7 - 28.4, mean 27.5 (based on 138 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03548 (0.02093 - 0.06016), b=2.95 (2.80 - 3.10), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  4.0   ±0.0 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100) .
Price category (Ref. 80766):   Medium.