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Tetraodontiformes (Puffers and filefishes) >
Balistidae (Triggerfishes)
Etymology: Rhinecanthus: Greek, rhinos = nose + Greek, akantha = thorn (Ref. 45335).
Eponymy: Pablo Ruiz Picasso (1881–1973) was a Spanish painter and sculptor. The vivid patterns and colours of Rhinecanthus triggerfish have led to them being popularly known as picassofish. (Ref. 128868), visit book page.
More on author: Linnaeus.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina revassocierade; djupintervall 0 - 50 m (Ref. 7348). Tropical; 30°N - 30°S
Indo-Pacific: East Africa eastward through northern Australia to Hawaiian, Marquesas and Tuamotu islands, north to southern Japan.
Length at first maturity / Size / Vikt / Age
Könsmognad: Lm 14.0 range ? - ? cm
Max length : 30.0 cm TL hane/ej könsbestämd; (Ref. 4420); common length : 15.0 cm TL hane/ej könsbestämd; (Ref. 5450)
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 23 - 26; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 21 - 23.
Body shape (shape guide): short and / or deep.
Commonly found in subtidal reef flats and shallow protected lagoons, Ref. 48637. Benthopelagic (Ref. 58302). Juveniles secretive with rubble patches, adults swim about openly but are usually shy (Ref. 48637). Territorial. Feed on algae, detritus, mollusks, crustaceans, worms, sea urchins, fishes, corals, tunicates, forams, and eggs (Ref. 3921). Oviparous (Ref. 205). Sleep on its side; makes a whirring noise when alarmed (Ref. 4420). Also caught with drive-in nets and is considered a popular aquarium fish (Ref. 9770).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Distinct pairing (Ref. 205). Mating system may be a mixture of polygyny, monogamy, and potential promiscuity in solitary females but the primary mating system considered for this species is polygyny (Ref. 116439). Females are territorial, solely tending and guarding the eggs (Ref. 116451). Males exhibit polygyny (Ref. 116451).
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Reports of ciguatera poisoning (Ref. 130160)
Human uses
Fiskeri: mindre kommeriell; Akvarium: Kommersiell
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 24.5 - 29, mean 27.7 °C (based on 1010 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.01145 - 0.03476), b=2.92 (2.77 - 3.07), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.1 se; based on diet studies.
Generation time: 2.7 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.4).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
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Nutrients (Ref.
124155): Calcium = 46.5 [19.5, 110.3] mg/100g; Iron = 0.619 [0.323, 1.399] mg/100g; Protein = 18.3 [16.2, 20.5] %; Omega3 = 0.115 [0.058, 0.223] g/100g; Selenium = 34.7 [18.2, 72.2] μg/100g; VitaminA = 54.6 [15.8, 190.6] μg/100g; Zinc = 1.12 [0.76, 1.64] mg/100g (wet weight);
