South Africa country information

Common names: Natal knifejaw, Nataise kraaibek, Natalse kraaibek
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: van der Elst, R., 1993
Aquaculture: | Ref:
Regulations: no regulations | Ref: van der Elst, R., 1993
Uses: gamefish: yes;
Comments: Occurs in Natal. Status of stock indeterminate; locally vulnerable to spearfishing; no commercial value; minor component of recreational anglers' catch (Ref. 4332). Angling record: 2.2 kg; spearfishing record: 3.0 kg (Ref. 12484).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: van der Elst, R.P. and F. Adkin (eds.), 1991
National Database:

Common names from other countries

Perico de Natal, Nataise kraaibek, Natal-knivkæbefisk, ... more

klasifikasi / Names Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa

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

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

laut berasosiasi dengan karang; kisaran kedalaman 20 - 100 m (Ref. 4387). Subtropical

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Western Indian Ocean: occurs only in Mozambique and Natal, South Africa.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL jantan/; (Ref. 4387); common length : 40.0 cm TL jantan/; (Ref. 9660)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

Duri punggung (Keseluruhan (total)) : 11; duri punggung lunak (Keseluruhan (total)) : 20 - 24; Duri dubur: 3; Sirip dubur lunak: 14 - 17. Adults dark grey in color; juveniles yellow with black bars (very similar to young Diplodus cervinus hottentotus.

Occur in coastal rocky and coral reefs to a depth of 100 m; juveniles pelagic in currents (Ref. 4332). Benthic omnivores. May live longer than 10 years. Spawning occurs throughout the year (Ref. 57746). Marketed fresh (Ref. 9660).

Life cycle and mating behavior Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva

rujukan utama Upload your references | Acuan | Koordinator | mitra

Heemstra, P.C., 1986. Oplegnathidae. p. 632-633. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4387)

Status IUCN Red List (Ref. 130435)

tidak dinilai

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

Perikanan: komersial; Ikan buruan: ya

FAO(Publication : search) | FishSource |

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Sumber internet

Estimates based on models

Preferred temperature (Ref. 115969): 23.6 - 26.7, mean 25.8 (based on 16 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): 3.2 ±0.42 se; based on food items.

Daya lenting (Ref. 120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (tmax > 10).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

kategori harga (Ref. 80766): Unknown.

Oplegnathus robinsoni Regan, 1916