Canthigaster valentini, Valentin's sharpnose puffer : fisheries, aquarium

Canthigaster valentini (Bleeker, 1853)

Valentin's sharpnose puffer
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Canthigaster valentini   AquaMaps   Data sources: GBIF OBIS
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Canthigaster valentini
Immagine di Wilkie, M.

Classificazione / Nomi Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Tetraodontiformes (Puffers and filefishes) > Tetraodontidae (Puffers) > Canthigasterinae
Etymology: Canthigaster: Greek, kanthos = the outer or inner corner of the eye, where the lids meet, 1646 + Greek, gaster = stomach (Ref. 45335).
Eponymy: François Valentijn (1666–1727) was a Dutch minister and naturalist who spent some time in the Dutch East Indies. [...] (Ref. 128868), visit book page.
More on author: Bleeker.

Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione Ecologia

marino associati a barriera corallina; non migratori (Ref. 52884); distribuzione batimetrica 1 - 55 m (Ref. 1602). Tropical; 32°N - 32°S

Distribuzione Territories | Aree FAO | Ecosistemi | Presenze | Mappa dei ritrovamenti | Introduzioni | Faunafri

Indo-Pacific: Red Sea south to Durban, South Africa (Ref. 4919) and east to the Tuamoto Islands, north to southern Japan, south to Lord Howe Island.

Lunghezza alla prima maturità / Dimensione / Peso / Età

Maturità: Lm 4.6, range 4 - 5.4 cm
Max length : 11.0 cm TL maschio/sesso non determinato; (Ref. 4919)

Breve descrizione Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 9; Spine anali: 0; Raggi anali molli: 9. Side with two prominent dark bars extending to belly (Ref. 559).
Body shape (shape guide): short and / or deep.

Biologia     Glossario (es. epibenthic)

Adults are found among coral heads and rocks of subtidal lagoon and seaward reefs (Ref. 4919, 5503). Common on coastal reefs at various depths. They mimic filefish, males are territorial and are often seen fighting (Ref. 48637). Food consists primarily of filamentous green and red algae, tunicates, and on smaller amounts of corals, bryozoans, polychaetes, echinoderms, mollusks, and brown and coralline red algae. They form shoals (10-100 or more) often with the filefish, Paraluteres prionurus (about 5% of shoal) mimicking C. valentini to protect it from predators (Ref. 4919, 5503). Territorial and haremic; males spawn with a different female each day (Ref. 9710). One or more territories are occupied and defended each by a female where a single large male stands guard (Ref. 55082). All sexually mature females are territorial females (Ref. 55082). Demersal spawner (Ref. 35298).

Ciclo vitale e comportamento di accoppiamento Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve

Oviparous (Ref. 205). Social and mating systems of this species are based upon female territoriality where polygyny results from males defending females occupying a certain territory (female-defense polygyny) (Ref. 55082). All sexually mature females are territorial females (Ref. 55082). Neither parent guards the eggs which are laid in a nest located in the female's territory (Ref. 46142). During breeding, territorial females perform the 'caudal flexing with swollen abdomen display' to signal courtship and readiness to spawn. The male acknowledges with no courtship or color displays but rather by visiting the sites frequently. The territorial female then begins pecking at the substrate in preparation for egg laying. The female initiates the spawning event by pressing her abdomen into the prepared site. The territorial male quickly lays his body across her caudal peduncle and both remained in this position for 5-10 sec. The male swims away after leaving the female beating her anal fin rapidly over the nest site to ensure fertilization of the eggs and to push the eggs deep into the algal substrate (Ref. 46142). All territorial males spawn with territorial females, depriving the bachelor males of the chance to copulate which nevertheless don't interfere with the spawning between the territorial male and females (Ref. 46142).

Riferimento principale Caricare le referenze | Bibliografia | Coordinatore : Matsuura, Keiichi | Collaboratori

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

Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 08 June 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Minaccia per l'uomo

  Poisonous to eat (Ref. 4919)





Usi umani

Pesca: commerciale; Acquario: Commerciale
FAO - Publication: search | FishSource |

Informazioni ulteriori

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Francobolli, monete, materiale vario.
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Stime basate su modelli

Temperatura preferita (Fonte Biblio. 123201): 24.6 - 28.9, mean 27.6 °C (based on 846 cells).
Indice di diversità filogenetica (Fonte Biblio. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03311 (0.01875 - 0.05847), b=2.84 (2.68 - 3.00), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Livello trofico (Fonte Biblio. 69278):  2.8   ±0.30 se; based on food items.
Resilienza (Fonte Biblio. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Fecundity = 400).
Vulnerabilità della pesca (Ref. 59153):  Low vulnerability (10 of 100). 🛈
Categoria di prezzo (Ref. 80766):   Very high.
Nutrienti (Ref. 124155):  Calcium = 113 [51, 272] mg/100g; Iron = 1.05 [0.51, 2.51] mg/100g; Protein = 17.9 [15.7, 20.1] %; Omega3 = 0.13 [0.06, 0.26] g/100g; Selenium = 39.9 [18.9, 91.4] μg/100g; VitaminA = 47.6 [12.6, 189.6] μg/100g; Zinc = 1.85 [1.19, 2.80] mg/100g (wet weight);