Kyphosus cinerascens, Blue sea chub : fisheries

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Kyphosus cinerascens (Forsskål, 1775)

Blue sea chub
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Kyphosus cinerascens   AquaMaps   Data sources: GBIF OBIS
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Image of Kyphosus cinerascens (Blue sea chub)
Kyphosus cinerascens
Picture by Bailly, N.

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> Centrarchiformes (Basses) > Kyphosidae (Sea chubs)
Etymology: Kyphosus: Greek, kyphos = bent (Ref. 45335).
More on author: Forsskål.

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

marien rifbewoner; diepte 0 - 45 m (Ref. 58652). Tropical; 35°N - 30°S, 30°E - 140°W

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Indo-Pacific: Red Sea and East Africa to the Hawaiian, Line and Tuamoto islands, north to southern Japan, south to Australia.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 22.6, range 23 - ? cm
Max length : 53.0 cm FL mannelijk / geslacht onbekend; (Ref. 125599); common length : 45.0 cm TL mannelijk / geslacht onbekend; (Ref. 57863); max. gepubliceerd gewicht: 3.6 kg (Ref. 125599)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 11; Dorsale zachte stralen (totaal): 11-12; Anale stekels 3; Anale zachte stralen: 11 - 12.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found in aggregations over hard, algal coated bottoms of exposed, surf-swept outer reef flats, lagoon and seaward reefs, to a depth of at least 24 m (Ref. 30573). Benthopelagic (Ref. 58302). Juveniles associated with floating material (Ref. 58302). Mainly herbivorous, feeding on seaweed and associated invertebrates (Ref. 30573). Appear to be more commonly involved in hallucinogenic fish poisoning than most other related species (Ref. 4690). Caught with other types of artisanal gear. Minimum depth reported taken from Ref. 128797.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Oviparous (Ref. 101771).

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Knudsen, S.W. and K.D. Clements, 2013. Revision of the fish family Kyphosidae (Teleostei: Perciformes). Zootaxa 3751(1):001-101. (Ref. 95491)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 07 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Poisonous to eat (Ref. 4690)





Gebruik door de mens

Visserij: van minder commercieel belang
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Estimates based on models

Preferred temperature (Ref. 123201): 24.7 - 29, mean 27.7 °C (based on 854 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.01253 - 0.03176), b=3.01 (2.87 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisch niveau (Ref. 69278):  2.9   ±0.33 se; based on food items.
Generation time: 4.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.25).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (38 of 100).
Climate Vulnerability (Ref. 125649):  High vulnerability (62 of 100).
Prijsklasse (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 43.6 [27.1, 58.6] mg/100g; Iron = 0.56 [0.38, 0.86] mg/100g; Protein = 19 [18, 20] %; Omega3 = 0.123 [0.091, 0.167] g/100g; Selenium = 34.6 [22.7, 54.6] μg/100g; VitaminA = 63.4 [24.5, 160.6] μg/100g; Zinc = 1.27 [0.97, 1.64] mg/100g (wet weight);