Johnius dorsalis, Small kob : fisheries, gamefish

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Johnius dorsalis (Peters, 1855)

Small kob
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Johnius dorsalis   AquaMaps   Data sources: GBIF OBIS
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Image of Johnius dorsalis (Small kob)
No image available for this species;
drawing shows typical species in Sciaenidae.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: More on author: Peters.

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

seewasser; brackwasser demersal. Tropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Indian Ocean: Kenya to South Africa and Madagascar. Previously referred to as Johnius dussumieri, which is restricted from Pakistan east to the Andaman Islands.

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 13.0  range ? - ? cm
Max length : 40.0 cm TL Männchen/unbestimmt; (Ref. 4336); common length : 20.0 cm TL Männchen/unbestimmt; (Ref. 3490)

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Sasaki, K., 1997. Resurrection of two East African species of Johnius (Perciformes, Sciaenidae). Ichthyol. Res. 44(3):311-315. (Ref. 13679)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 02 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell; Sportfisch: ja
FAO - Publication: search | FishSource |

Mehr Information

Länder
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Vorkommen
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Ökologie
Nahrung
Nahrungsorganismen
Nahrungsaufnahme
Nahrungsmenge
Namen
Synonyme
Metabolismus
Räuber
Ökotoxikologie
Fortpflanzung
Geschlechtsreife
Ablaichen
Spawning aggregation
Fecundity
Eier
Eientwicklung
Alter/Größe
Wachstum
Länge-Gewicht
Länge-Länge
Längenhäufigkeiten
Morphometrie
Morphologie
Larven
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BRUVS
Referenzen
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Laute
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Geschwindigkeit
Schwimmstil
Kiemenoberfläche
Otoliths
Gehirngröße
Sehfähigkeit

Tools

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Internet Quellen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 24.3 - 27.6, mean 26.9 °C (based on 72 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00650 - 0.01937), b=3.09 (2.95 - 3.23), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100).
Preiskategorie (Ref. 80766):   Medium.