Macroscopic gonadal analysis and observations on the timing of courtship and spawning in several carangid species in the wild (Johannes, 1981; Sala et al., 2003), coupled with gonadal sampling observations on the captive spawning behavior of the related bluefin
trevally (Caranx melampygus) (Moriwake et al., 2001), further indicate that permit and other carangids display circa lunar periodicity when spawning naturally.
(1988) Cortez grunt Haemulon flaviguttatus Lea and Rosenblatt (1992) Bigeye
trevally Caranx sexfasciatus Lea and Walker (1995) Mexican lookdown Selene brevoorti Lea and Walker (1995) Common name Collection date Anchoveta 1986?
Jack crevalle is sold by various names, including cavalry, cavalla, toro (in Mexico),
trevally, and jackfish.
She recently spent a week on Alphonse working on a study of a fish species called the Giant
Trevally, or GT.
As the currents wash over the spit, all the big marine life comes by, from gray reef sharks, giant
trevally, dog-tooth tuna and Napoleon wrasse to chevron barracuda and many other predators too numerous to name.
The star of the first show has to be the great
trevally, a giant fish the size of a bulldog which lives in the Indian Ocean near the Seychelles.
Other catches included jacks, blue-fin
trevally, snapper and African pompano.
However, the holy grail for sports fishermen is the giant
trevally - aka the GT.
He starts off in the Maldives hunting for the "GT" - the giant
trevally.
A study conducted at a French Frigate Shoals in the Hawaiian Islands estimated that the local population of giant
trevally consumes approximately 19.6 tons of prey each year and combined with its close relative the bluefin
trevally (Caranx melampygus) they consume more prey than the three dominant shark species in the same ecosystem!
As you descend deeper into the oceans, come face to face with sharks, rays, shimmering Golden
Trevally and hundreds of other exotic species.
After seeing green turtles mating for the first time, schools of jackfish, barracuda and big-eye
trevally and reef sharks fighting over a cave in just one dive, the statement rings true.