The bigeye scad (Selar crumenophthalmus) is an oceanic fish found in tropical regions around the globe. Other common names include mas bango, akule, chicharro, charrito ojón, purse-eye scad, coulirou, and goggle-eyed scad. The bigeye scad is fished commercially and is important in aquaculture.
Common names: scad (English), jurel (Espanol), charrito (Espanol)
Selar crumenophthalmus (Bloch, 1793)
Bigeye scad, Purse-eyed scad
Body elongate, fusiform, moderately compressed; eye covered with fatty eyelid, with vertical slit in center; margin of bone at rear end of gill chamber with 2 papillae, 1 small one at top, 1 large one at bottom, bottom one with large notch below it; gill rakers 9-12 + 27-37; dorsal rays VIII+I, 24-27, 2 fins close together, no free spines at front; anal rays II free spines +I, 21-23; no isolated finlets after dorsal & anal fins; pectoral longer than head; lateral line extension to nape ends before origin of dorsal fin; front curved part of lateral line with a long, low arch, straight part with 0-11 scales and 29-42 scutes; body more or less covered with small scales.
Metallic blue to bluish green above, shading to white below; yellow stripe sometimes present from opercle margin to upper part of caudal fin base.
Size: to 30 cm.
Habitat: pelagic, forms inshore schools.
Depth: 0-170 m.
Worldwide in tropical and subtropical seas; Central Baja and the Gulf of California to Ecuador and the oceanic islands.
Western Atlantic: Nova Scotia, Canada and Bermuda to Rio de Janeiro, Brazil; throughout the Bahamas, Gulf of Mexico and the Caribbean Sea
Dorsal spines (total): 9; Dorsal soft rays (total): 24 - 27; Analspines: 3; Analsoft rays: 21 - 23
Maximum size: 600 mm SL
Generally found near the coast or in shallow waters (Ref. 9283). May also be encountered over shallow reefs but may reach depths of 170 m. Prefers clean, clear insular waters (Ref. 9626) but occasionally in turbid waters (Ref. 9283). Mainly nocturnal, it feeds on small shrimp, benthic invertebrates, forams when inshore, and zooplankton and fish larvae when offshore. Travels in compact groups of hundreds of thousands of fish. Juveniles up to 13 cm caught with light tackle (Ref. 4887). Marketed fresh (Ref. 9626).
Identification key for shorefishes of the tropical eastern Pacific
Prefers clear oceanic waters around islands to neritic waters.
Feeds on small shrimps, benthic invertebrates, and forams when inshore, and zooplankton and fish larvae when offshore
Egg Type: Pelagic, Pelagic larva
http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=146146&lvl=0