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Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > 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 / Climate / Range Ecology

Marine; benthopelagic. Tropical, preferred ?

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Western Indian Ocean: apparently restricted to waters off the southern Arabian Peninsula and in the Gulf of Oman, for no specimens were found in the Persian Gulf and Red Sea and off the East African Coast.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 15.8 cm SL male/unsexed; (Ref. 90119); 14.7 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 29-31; Anal spines: 2; Anal soft rays: 8; Vertebrae: 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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki |

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [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): 3.4 ±0.5 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): Low vulnerability (16 of 100) .

Entered by Capuli, Estelita Emily

Modified by Capuli, Estelita Emily

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Johnius majan Iwatsuki, Jawad & Al-Mamry, 2012