Polynemus sexfilis   Valenciennes,  1831 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Polynemidae

Image copyrights: Mya Than Tun

Description
Max. size: 30 cm

Color: Silvery. Dorsal and anal hyaline, upper part of first dorsal and lobe of second dorsal slightly blackish. Outer margin of caudal dark. Pectoral often blackish.

Head 3.0-3.3 in standard length, 4.3-4.7 in total length. Depth of body 3.2-3.5 in standard length, 4.4-4.8 in total length. Eye diameter 3.5-5.0 in head, 0.6-1.2 in snout and 0.9-1.5 in convex interorbital space. Maxillary naked. Preoperculum serrated, its angle produced as a triangular flap. Teeth in narrow bands in jaws and palatines and in a patch on vomer. Soft dorsal fin origin in front of a vertical through anal fin origin. First spine of first dorsal fin minute, second shorter than third. Spine of second dorsal fin longer than third spine of anal fin. Height of second dorsal fin almost equal to length of head. Caudal fin with long pointed lobes. Pectoral fin rays undivided, half eye diameter longer than postorbital length of head. First pectoral filament reaching behind tip of ventral fin in juveniles but not to tip in adults. Ventral fin slightly shorter than postorbital length of head.
Number of spines in the first dorsal fin: VIII; number of spines and rays in the second dorsal fin: I, (12) 13; number of spines and rays in the anal fin: III, 11 (12); number of rays in the pectoral fin: 15-16+6; number of spines and rays in the ventral fins: I, 5; number of scale rows along the lateral line: 59-63; number of horizontal scale rows usually counted from origin of the dorsal fin to the lateral line and from anal origin to the lateral line: 7+1+12-13; gill raker count: 11-13+1+14-16.

Remarks: Values in above description denote proportions.


Synonym (s)
Filimanus xanthonema (non Valenciennes, 1831)
(Misapplied)
Polydactylus kuru Bleeker, 1853
Polynemus kurru Bleeker, 1853
Polynemus kuru Bleeker, 1853
Polynemus sexfilis Cuvier and Valenciennes, 1831

Common Name (s)
• Dagi (Bengali)
• Lakkha (Bengali)
• Golden Sixthread Tesselfish (English)
• Kala (English)
• Moi Threadfin (English)
• Pacific Threadfin Fish (English)
• Sixfeeler Threadfin (English)
• Sixfinger Threadfin (English)
• Topshi (English)
• Mookan (Malayalam)
• Golden Sixthread Tassel Fish (English)
• Golden Sixthread Threadfin
Economic Importance and Threats
Importance:  Commercial
(Marketed fresh or frozen, dried and salted, bait fish)

Ecology
Habitat:  Estuarine, Sandy
Prey:  Small crustaceans and bottom living organisms

Biogeography


• Maharashtra, Dahanu Creek (Lat: 19.97) (Long: 72.72) INDIA
• Maharashtra, Danda Creek (Lat: 19.6) (Long: 72.72) INDIA
• Maharashtra, Savta Creek (Lat: 19.95) (Long: 72.77) INDIA
• West Bengal, Digha Coast (Lat: 21.61) (Long: 87.53) INDIA
• MYANMAR
• Lakshadweep, Agatti INDIA
• Lakshadweep, Amini INDIA
• Lakshadweep, Chettalatt INDIA
• Lakshadweep, Kadamatt INDIA
• Lakshadweep, Kavaratti INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep, Tinnakara INDIA
• Lakshadweep INDIA
• MAURITIUS
• SEYCHELLES
• INDIA
• SRI LANKA
• Tamil Nadu, Chennai INDIA
• Lakshadweep, Minicoy Island (Lat: 8.11) (Long: 73.3) INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at - http://www.reefindia.org/
  • Ghosh, TK (2002) Ranking of fishes harvested from creeks at Dahanu in west coast of India AFSIB, Mangalore and AoA, Bhubaneswar 319-326 Available at - NCL, Pune
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Goswami, BCB (1992) Marine fauna of Digha coast of West Bengal, India Journal of Marine Biological Association of India The Marine Biological Association of India, Cochin 34 115-137 Available at - NIO, RC Kochi
  • Tun, MT (2001) Marine fishes of Myanmar (pelagic and demersal) U Than Tun, Director-General, Department of Fisheries, Ministry of Livestock and Fisheries, Myanmar 276 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Murty, VS (1969) Catalogue of fishes (excluding from the Laccadives) in the reference collections of the Central Marine Fisheries Research Institute Bulletin of Central Marine Research Institute CMFRI, Cochin 10 1-38 Available at - http://eprints.cmfri.org.in/571/1/Bulletin_10.pdf
  • Jones, S and Kumaran, M (1959) The fishing industry of Minicoy Island with special reference to the tuna fishery Indian Journal of Fisheries Indian Council of Agricultural Research 6 (1) 30-57 Available at - http://eprints.cmfri.org.in/1866/1/Article_04.pdf
  • Silas, EG and Pillai, PP (1982) Bait fishes Resources of tunas and related species and their fisheries in the Indian Ocean, CMFRI Bulletin, 32 CMFRI 32 136-140 Available at - http://eprints.cmfri.org.in/806/1/Bulletin_No_32.pdf
  • 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

Page last updated on:2011-10-17

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