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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 Ecologia

marino associati a barriera corallina; distribuzione batimetrica 3 - 30 m (Ref. 55763). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

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

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 66.0 cm TL maschio/sesso non determinato; (Ref. 55763); common length : 30.0 cm TL maschio/sesso non determinato; (Ref. 55763); peso massimo pubblicato: 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 Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori

Ecology
Ecologia

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali

Distribution
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Aree FAO
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Anatomy
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Cervelli
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suoni dei Pesci
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetica
Electrophoreses
Heritabilities

Human related
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Profili di acquacoltura
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Ciguatera cases
Stamps, coins, misc.

Outreach
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References
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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).

Trophic level (Ref. 69278): 3.9 ±0.2 se; based on diet studies.

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (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);

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