Gerres filamentosus   Cuvier,   1829 (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Gerreidae

Image copyrights: Randall, J.E.

Description
Size: Maximum 35 cm; common about 15 cm

Color: Silvery and there may be 7-10 broken vertical bars on the upper portion along the sides. The fins are dusky hyaline to white

The body is oblong, moderately compressed and deep. The mouth is small and protractile and bears fine, villiform teeth in each jaw. The body is covered with firmly attached ctenoid scales. Head 2.9-3.2 in standard length, 3.8-4.3 in total length. Depth of body 2.3-2.5 in standard length, 3.1-3.5 in total length. Eye diameter 3.3-3.8 in head, 1.0-1.2 in snout and also in interorbital space. Maxillary reaching to below front border of eye. Lower pharyngeals united by mobile suture. Distance from tip of snout to dorsal fin origin a little more than height of body. Second dorsal fin spine often produced into a filament in large specimens. 2nd and 3rd anal fin spines subequal. Pectoral fin a little longer than length of head. Ventral fin shorter than head without snout.
Number of spines and rays in the dorsal fin: IX, 10; number of spines and rays in the anal fin: III, 7; number of rays in the pectoral fin: 15-16; number of spines and rays in the ventral fin: I, 5; number of scale rows along the lateral line: 43-47; 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: 5-6+1+12-13.

Dioecious, external fertilization, batch spawner, nonguarders, open water/substratum egg scatterers. Breeds in late summer to early rainy season. Juveniles enter estuaries and mangrove areas at 1 cm SL and stay until they reach maturity, at which stage they move out to sea.

Remarks: Values in above description denote proportions.


Synonym (s)
Gerres filamentosus Day, 1875
Gerres filamentosus Talwar and Jhingran, 1991
Gerres punctatus Cuvier, 1830
Gerres macracanthus (non Bleeker, 1854)
(Misapplied name)
Gerres punctatus Cuvier, 1830-32
(Junior synonym)
Pertica filamentosa (Cuvier, 1829)
(Senior synonym)
Sparus edentulus Gunther, 1859
(Ambiguous synonym)
Gerres punctatus Weber and de Beaufort, 1931
Pertica filamentosa Munro, 1955
Gerres macracanthus Bleeker, 1854
Gerres punctata Cuvier, 1830
(Misspelling)

Common Name (s)
• Whip Tail Silver Biddy (English)
• Long Rayed Silver Biddy (English)
• Jaggari (Telugu)
• Jagili
• Whipfin Silverbiddy (English)
• Whipfin Mojorra (English)
• Kotto (Gujarati)
• Holebaige (Kannada)
• Sala (Mahl)
• Uniyamas (Mahl)
• Kodianpurachi (Malayalam)
• Pranjin (Malayalam)
• Charbit (Marathi)
• Jagili (Oriya)
• Oodan (Tamil)
• Udagam (Tamil)
Economic Importance and Threats
Importance:  Commercial
(Fisheries; marketed fresh or frozen, salted or made into fish sauce.)

Ecology
Habitat:  Demersal, Estuarine, Coastal
Trophic Level:  Secondary Consumer
Prey:  Small crustaceans, polychaetes and forams on sand or muddy-sand bottoms, worms and insect larvae.
Predator:  Saurida tumbil

Biogeography


• Andaman and Nicobar Islands, Andaman Islands (Lat: 10) (Long: 93) INDIA
• West Bengal, Kiagoria INDIA (Record: 1981-1982)
• West Bengal, Digha Coast (Lat: 21.61) (Long: 87.53) INDIA
• Tamil Nadu, Pichavaram Mangrove Forest (Lat: 11.03) (Long: 79.78) INDIA
• MYANMAR
• Andhra Pradesh, Vishakhapatnam (Lat: 17.72) (Long: 83.33) INDIA
• Orissa, Chilika Lake INDIA (Record: 1985-1987)
• Tamil Nadu, Chennai Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Kerala, Ponnani Estuary INDIA (Record: 03/1997-02/1999)
• Lakshadweep, Agatti INDIA
• Lakshadweep, Amini INDIA
• Lakshadweep, Kadamatt INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep INDIA
• Red Sea
• INDIA
• SRI LANKA
• Orissa, Chilika INDIA
• Tamil Nadu, Rameswaram Island INDIA
• Kerala, Ayiramthengu INDIA
• Tamil Nadu, Tuticorin Coast INDIA
• Kerala INDIA
• West Bengal, Digha Ghole (Lat: 21.61) (Long: 87.53) INDIA (Record: 1981-1982)
• Tamil Nadu, Ramanathapuram INDIA
• Andaman and Nicobar Islands INDIA
• Gujarat, Medi-Sinthodi Creek (Lat: 23.45) (Long: 68.48) INDIA (Record: 01/1999-12/2000)
• Gujarat, Jakhau-Babber Creek (Lat: 23.5) (Long: 68.6) INDIA (Record: 01/1999-12/2000)
• Gujarat, Sangi-Kharo Creek (Lat: 23.28) (Long: 68.51) INDIA (Record: 01/1999-12/2000)
• West Bengal (Lat: 21.45) (Long: 87.9) INDIA
• Maharashtra, Malvan (Lat: 16.07) (Long: 73.47) INDIA

Literature Source(s)
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Page last updated on:2012-02-01

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