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Johnius majan Iwatsuki, Jawad & Al-Mamry, 2012

Majan croaker
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Image of Johnius majan (Majan croaker)
Johnius majan
Picture by Marine Science and Fisheries Centre, Muscat

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: majan: The specific name proposed for this Omani endemic is an ancient Sumerian name for Oman, about 4,000 BC..

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

marino benthopelagico. Tropical

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

Western Indian Ocean: Oman to Iraq..

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.8 cm SL maschio/sesso non determinato; (Ref. 90119); 14.7 cm SL (female)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 10; Raggi dorsali molli (totale) : 29 - 31; Spine anali: 2; Raggi anali molli: 8; Vertebre: 24. This species is distinguished by the following set of characters: upper pectoral fin base with a black axillary spot; D 29-32; A 8; scales above lateral line 6, below 11; eye diameter 22.9-28.9% HL; interorbital width 32.0-38.0% HL; gill rakers 5-6 + 15-18 = 21-24; no mental barbel, last well-developed pleural rib on 7th vertebra; 11 swim bladder appendages; vertebrae 10 + 14 = 24 (Ref. 90119).

Biologia     Glossario (es. epibenthic)

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Iwatsuki, Y., L.A. Jawad and J.M. Al-Mamry, 2012. Jonius (Johnius) majan sp. nov., a sciaenid fish (Pisces: Scianidae) from Oman, Indian Ocean. Ichthyol. Res. 59:151-155. (Ref. 90119)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 27 September 2018

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
Stati
Aree FAO
Ecosystems
Presenze
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BRUVS - Videos
Anatomy
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Cervelli
Otoliths
Physiology
Body compositions
Nutrients
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Swimming type
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Visual pigment(s)
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Toxicities (LC50s)
Genetics
Genetica
Electrophoreses
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Human related
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Profili di acquacoltura
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Ciguatera cases
Stamps, coins, misc.
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Taxonomy
Nomi Comuni
Sinonimi
Morfologia
Morfometria
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References
Bibliografia

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Fonti Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Genere, Specie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, 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: Go, ricerca | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00533 - 0.02588), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
Resilienza (Ref. 120179):  Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).