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> Centrarchiformes (Basses) > Oplegnathidae (Knifejaws)
Etymology: Oplegnathus: Greek, hoplon = weapon + Greek, gnathos = jaw (Ref. 45335).
More on author: Kner.

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

marina revassocierade; djupintervall 3 - 30 m (Ref. 55763). Tropical

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Eastern Pacific: Paita, Peru to Antofagasta, Chile, including the Galapagos Islands (Ref. 5530).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 66.0 cm TL hane/ej könsbestämd; (Ref. 55763); common length : 30.0 cm TL hane/ej könsbestämd; (Ref. 55763); publicerad maxvikt: 1.6 kg (Ref. 53696)

Usually solitary. Constantly swims over rocky reefs, boulder strewn slopes and along walls. Occurs more commonly in shallow water (Ref. 5227). Feeds on algae and invertebrates (Ref. 28023).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Merlen, G., 1988. A field guide to the fishes of Galapagos. Wilmot Books, London, England 60 p. (Ref. 5590)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 24 May 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Preferred temperature (Ref. 123201): 18.5 - 24.8, mean 21 °C (based on 150 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.9 ±0.2 se; based on diet studies.

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (tmax assumed to be > 10).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).

Nutrients (Ref. 124155): Calcium = 35.8 [18.4, 59.5] mg/100g; Iron = 0.507 [0.296, 0.799] mg/100g; Protein = 19.1 [18.0, 20.2] %; Omega3 = 0.0995 [, ] g/100g; Selenium = 35.3 [20.7, 63.4] μg/100g; VitaminA = 38.2 [11.5, 122.6] μg/100g; Zinc = 0.811 [0.567, 1.171] mg/100g (wet weight);

Oplegnathus insignis (Kner, 1867)