Photos about jacks (Carangidae); including jack larvae and juveniles: Juvenile pilotfish in the open ocean at nightBigeeye scad schooling on a reefThree sand tiger sharks (Carcharias taurus) surrounded by round scad (Decapterus punctatus) on a wreck off North Carolina. The scad cluster around the shark for protection from predators, such as jacks and tunas.Bigeye trevally (Caranx sexfasciatus) motion blur. Solomon Islands.Over-under photo of jacks and sharks on a sandbar with Moorea's mountains in the background. French Polynesia.School of bigeye trevally (Caranx sexfasciatus). Cocos Island. Costa Rica.Bigeye trevally (Caranx sexfasciatus) and Pacific creolefish (Paranthias colonus) schooling up close. Cocos Island. Costa Rica.Black jack (Caranx lugubris) and whitetip reef shark (Triaenodon obesus) hunt small reef fish hiding in the coral at night. Costa Rica.Filming diver swims through a school of Bigeye trevally (Caranx sexfasciatus). Costa Rica.Yellowstripe scad (Selaroides leptolepis) school in the shallows off Bali. Indonesia.Yellowstripe scad (Selaroides leptolepis) schooling in the shallows off Bali.Bluestreak fusilier (Pterocaesio tile) reef scene. Indonesia.Orangespotted trevally (Jackfish) (Carangoides bajad) hunting with a pack of yellowsaddle goatfish (Parapeneus cyclostomus) on a coral reef in Raja Ampat, Indonesia.Orangespotted trevally (Jackfish) (Carangoides bajad) hunting with a pack of yellowsaddle goatfish (Parapeneus cyclostomus) on a coral reef in Raja Ampat, Indonesia.Juvenile jacks (Carangids) seek protection on medusa in Palau.Juvenile jacks (Carangids) seek protection on a venomous medusa on blackwater dive in Palau.Juvenile African pompano (Alectis ciliaris). Palau.Bluestreak cleaner wrasse (Labroides dimidatus) tending to bluestreak fusiliers (Pterocaesio tile).Bluestreak cleaner wrasse (Labroides dimidatus) tending to bluestreak fusilier (Pterocaesio tile). Palau.Head on shot of bigeye trevally (Caranx sexfasciatus) school. Fiji.One bigeye trevally (Caranx sexfasciatus) swims opposite to the rest of the school. Indonesia.Greater amberjack (Seriola dumerili). Mexico.Jack larva (Carangidae) - 27.1 mm TL. Papua New Guinea.Jacks hunting on blackstreak fusiliers (P. tile). Indonesia.Schooling big-eye trevally (Caranx sexfasciatus). The species is mostly inactive during the day and feeds at night. Galapagos Islands.Bigeye scad (Selar crumenophthalmus) school under fishing boats. Indonesia.A school of bigeye trevally (C. sexfasciatus) races along sea cliffs under stormy seas off Socorro Island.This fish trap contained racoon butterflyfish, bluefin trevally, brown surgeonfish, orangebar surgeonfish, manybar goatfish and blue goatfish. Most of these species are bycatch. The mesh size was only 1.5"x1.5". The fish will die from the pressure change when this trap is brought to the surface. Traps with larger mesh sizes would allow smaller, non-targeted species to escape eliminating unecessary mortality. Hawaii.Cultured mackerel scad larva (Decapterus macarellus).Cultured barred jack (Carangoides ferdau) larva.Blue trevally (Carangoides ferdau) larvae reared in the laboratory.