Johnius elongatus   Mohan,  1976 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Sciaenidae

Image copyrights: FAO

Description
Size: Maximum 30 cm; common to 20 cm

Color: Greyish back, flank and belly silver, peppered with black on lower flanks and tips of dorsal, anal and caudal fins.

Small and slender species with a swollen snout projecting beyond the ventral mouth. No barbel on chin; rostral pores 5, marginal pores 5, the marginal dividing the rostral flap into deep lobes; mental pores 5, surrounded by thickened skin, produced into 2 short and irregular tags between the median and first lateral pores. Teeth differentiated into large and small upper jaw, those in the outer row close-set and enlarged, but not canine-like. Lower jaw teeth uniformly villiform. Sagitta (large earstone) with a tadpole-shaped impression, of which the "head" has its long axis lying obliquely to that of the otolith and the "tail" is expanded and deepened as a hollow cone, connected with the "head" by a narrow groove. Gill rakers short and narrow, 6-7 on lower arm of first arch. Dorsal fin with 10 or 11 spines, followed by a notch, second part of dorsal fin with 1 spine and 25-29 soft rays. Anal fin with 2 weak spines and 7 soft rays, the second spine about 1/3 of head length. Caudal fin rhomboid. Scales cycloid (smooth) on snout and below eye, and ctenoid (rough to touch) on top of head and on body. Swim bladder hammer-shaped, with 13 or 14 pairs of arborescent appendages, the first branching in the head.


Synonym (s)
Johnius elongatus Mohan, 1976

Common Name (s)
• Mohan's Croaker
• Spindle Croaker (English)
Economic Importance and Threats
Importance:  Commercial
(Marketed fresh and also dried salted.)

Ecology
Habitat:  Demersal, Coastal
Trophic Level:  Consumer
Prey:  Benthic worms and crustaceans

Biogeography


• West Coast INDIA
• Maharashtra, Panchoo Bandar INDIA
• Maharashtra, Bassein INDIA
• Goa INDIA
• Maharashtra INDIA
• Gujarat INDIA
• Kerala INDIA
• INDIA
• Gujarat, Veraval Coast INDIA

Literature Source(s)
  • Singh, DF and Yazdani, GM (1993) Ichthyofauna of Konkan region of Maharashtra (India) Records of the Zoological Survey of India. Occasional paper no 145 ZSI, Calcutta 46 Available at - NIO, Goa
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Ansari, ZA; Sreepada, RA; Dalal, SG; Ingole, BS and Chatterji, A (2003) Environmental influences on the trawl catches in a bay-estuarine system of Goa, west coast of India Estuarine, Coastal and Shelf Science Elsevier 56(3-4) 503-515 Available at - http://dx.doi.org/10.1016/S0272-7714(02)00201-9
  • Talwar, PK and Kacker, RK (1984) Commercial sea fishes of India ZSI, Calcutta 997 pp Available at - NIO, Goa
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 4 Available at - http://www.fao.org/docrep/009/ad468e/ad468e00.HTM#Contents
  • Bijukumar, A and Deepthi, GR (2009) Mean trophic index of fish fauna associated with trawl bycatch of Kerala, southwest coast of India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 51(2) 145 - 154 Available at - NIO, Goa
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at - eprints.cmfri.org.in/3975/1/Special_Publication_No_12_Revised.pdf
  • Biswas, KP (2009) Fishes around Indian Ocean Sciaenid Fishes Daya publishing house Available at - NIO,Goa
  • Sujatha, K (1995) Finfish constituents of trawl by-catch off Visakhapatnam Fishery Technology Society of Fisheries Technologists 32(1) 56-60 Available at - NIO, Goa
  • Biswas, KP (2009) Fishes around Indian Ocean Dominant Fish Groups Occurring in Indian Coasts Daya publishing house Available at - NIO,Goa

Page last updated on:2012-01-05

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