Selar crumenophthalmus

Osteichthyes Carangidae Genus Selar Selar crumenophthalmus

Bigeye scad BIS

26.1 cm TL

Characteristic features:

Colour:

Blue green dorsally grading to silvery white below; tip of snout dusky or black; a narrow yellow stripe from rear edge of operculum to caudal peduncle.

Size:

Up to 30 cm TL.

Distribution:

Circumglobal in tropical and subtropical waters.

Habitat:

Coastal waters near reefs, from the surface to 170 m depth.

Biology:

Adult Bigeye scad feed primarily larvae and small juvenile fish, juvenile Bigeye scad feed on planktonic crustaceans, mostly during the night. Forms small and large schools sometimes with Selar boops.

Indonesian fisheries:

Caught with hook-and-line, beach seines, trawls, purse seines, and traps.

Similar species:

Selar boops
Oxeye Scad

Selar boops differs in having 21–24 scales in curved part of lateral line (vs. 48–56 scales); large sized scutes on caudal peduncle (vs. moderate scutes) and curved part of lateral line 2.1 to 3 times in straight part (vs. roughly equal, 0.7 to 1.2 times in straight part).

to Selar boops

Selaroides leptolepis
Yellowstripe scad

Selaroides leptolepis differs in having an adipose eyelid moderately developed on posterior half of eye (vs. adipose eyelid completely covering eye except for a vertical slit centred on pupil); prominent black opercular spot, merging onto shoulder (vs. a small, elongate blackish opercular spot) and a shoulder girdle margin under operculum smooth and without papillae (vs. with 2 papillae).

to Selaroides leptolepis

External links:

FishBase
The IUCN Red List of Threatened Species^TM