Decapterus russelli   (Ruppell,  1830) (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Carangidae

Image copyrights: Ministry of Agriculture and Fisheries, Sultanate of Oman

Description
Size: 40 cm.

Max. published weight: 110 g.

Color: Bluish-green dorsally and silvery on the sides and ventrally with a small black blotch on the margin of the opercle near the upper edge. The caudal fin is yellowish-green to dusky brown. The second dorsal and anal fins are hyaline basally and light dusky distally. The rest of the fins are pale yellow.

Body is elongate and slender. Eyes are covered with adipose eyelids. The fins include two separate dorsals. The first dorsal fin has 8 spines and the second has 1 spine and 27 to 31 soft rays. The anal fin comprises 2 detached spines followed by 1 spine and 28-30 soft rays. Other fins include sub-falcate pectorals and a deeply forked caudal. Dorsal and ventral profile equal, height according to length, 4.5-5.5 in length of body, head 3.4-3.5, bluntly pointed, its ventral profile more convex than the declivous dorsal one, lower jaw slightly longer than the upper, suboperculum distinctly concave, angle of praeoperculum feebly crenulate, opercular membrane in adult sharply serrate. Occiput and interorbital space partly scaly, head otherwise naked. Eye 3.6 to more than 4 in head, the adipose eyelid well developed, overlapping front and hind border of pupil, snout much longer than eye, about thrice in head, maxillary strongly dilated, scarcely reaching front border of eye, interorbital space convex 1.15 in eye. Minute teeth in jaws, laterally in a single series, the anterior in the upper jaw may be reduced, somewhat larger ones on anterior part of vomer, in two small patches, reduced behind, a villiform narrow band on palatines and on tongue where they may be reduced or even absent. The longer anterior part of lateral line with small, distinct straight, then slightly arched below soft dorsal and descending below its middle to posterior straight part, which contains about 40 more or less distinct keeled scales, continued on base of caudal, the middle ones 4-5 times in height of body. Spinous dorsal high, but lower than height of body, its spines flexible, the second, third and fourth the longest, higher than soft dorsal, the seven anterior rays of which are higher but gradually decreasing in size. Anal of similar form, its third spine situated below sixth or seventh dorsal ray. Dorsal and anal pinnula (finlet) quite apart, longer than posterior connected rays. Pectorals falcate, conspicuously shorter than head, with 21-23 rays, ventrals more than twice in head, caudal widely forked, its lobes obtusely pointed. Vent close to anal spine. Color greenish blue above, silvery below, a distinct black opercular spot, fins yellowish or brownish, the anal and ventrals lighter.

Dioecious, external fertilization, nonguarders, open water/substratum egg scatterers.

Remarks: Values in above description denote proportions.


Synonym (s)
Caranx ecclipsifer De Vis, 1884
(Junior synonym)
Caranx kiliche Cuvier, 1833
(Junior synonym)
Caranx kurra Day, 1876
Caranx russelli Ruppell, 1830
(Senior synonym)
Decapterus dayi Wakiya, 1924
(Junior synonym)
Decapterus kiliche (Cuvier, 1833)
(Junior synonym)
Decapterus russelli Ruppell, 1830
(Senior synonym)
Caranx pseudopterygius Bleeker, 1849
Decapterus kurra Bleeker, 1851
Decapterus kurra Bleeker, 1860
Caranx kurra Gunther, 1860
Caranx kurra Klunzinger, 1871
Decapterus russelli Klunzinger, 1884
Caranx ecclipsifer De Vis, 1884
Caranx russellii Gunther, 1887
Decapterus russelli Steindachner, 1902
Caranx kurra Duncker, 1904
Decapterus kurra Evermann and Seale, 1907
Decapterus ecclipsifer Ogilby, 1910
Decapterus russelli M. Weber, 1913
Decapterus russellii Ogilby, 1915
Decapterus russelli Wakiya, 1924
Decapterus russelli Barnard, 1925
Caranx russellii Ruppell, 1828
Caranx kurra Day, 1878
Decapterus russelli Weber and de Beaufort, 1931
Decapterus ruselli (Ruppell, 1830)
(Misspelling)
Decapterus russellii (Ruppell, 1830)
(Misspelling)

Common Name (s)
• Round Scad (English)
• Indian Scad (English)
• Russells Scad (English)
• Murimas (Mahl)
• Shitap (Marathi)
• Tedi (Marathi)
• Moondakun Kilichi (Tamil)
• Parai
• Russll's Scad (English)
• Pira Bangda
Economic Importance and Threats
Importance:  Commercial
(Fisheries; generally marketed fresh, may be dried or salted. Also sold frozen and canned. Used as bait.)

Ecology
Habitat:  Benthic, Pelagic, Bentho Pelagic, Coastal
Trophic Level:  Secondary Consumer
Prey:  Zooplankton (planktonic eggs, copepods), Chiefly crustaceans as Acetes indicus
Predator:  Sarda orientalis

Biogeography


• INDIA
• Gulf of Oman
• Tamil Nadu, Chennai Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Lakshadweep, Kavaratti INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep INDIA
• Red Sea
• SRI LANKA
• Andaman and Nicobar Islands, Great Nicobar Island INDIA (Record: 08/2000-07/2003)
• Kerala INDIA
• Arabian Sea INDIA (Record: 02/1985-06/1987)
• Bay of Bengal INDIA (Record: 02/1985-06/1987)
• Kerala, Off Kochi INDIA (Record: 03/1954-07/1955)
• Orissa INDIA
• Andhra Pradesh INDIA
• Orissa, Puri INDIA (Record: 1987-2006)
• Andhra Pradesh, Vishakhapatnam INDIA
• Off South West Coast INDIA (Record: 01/1962-12/1968) (Depth: 10-75 mts)
• Kerala, Off Calicut INDIA (Record: 1948-1953) (Depth: 3.65-14.63 mts)
• Andaman and Nicobar Islands INDIA
• Gujarat INDIA
• Kerala, Kochi INDIA
• West Bengal (Lat: 21.45) (Long: 87.9) INDIA
• Andhra Pradesh, Kakinada (Lat: 16.93) (Long: 82.22) INDIA

Literature Source(s)
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Page last updated on:2012-03-13

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