Big Fish
Giant Trevally
Caranx ignobilis · Bony fish, family Carangidae
A big GT reads as pure intent. The build is all shoulders (a steep silver forehead, scythe fins, a tail built for zero-to-full-speed), and the demeanor alternates between idling menace and detonations of speed that scatter fusilier schools like shrapnel. Divers in Polynesian and Maldivian passes watch them use every trick in the book: shadowing sharks, hiding in exhaled bubbles, timing runs to the panic of the school. Old males turn coal black and patrol alone like site security. For fly fishermen the species is a grail; for divers it is the reef's reminder that predation is mostly geometry and timing, performed at a pace nothing else on the reef can match.
在哪里、什么时候能见到
"常驻"表示在该目的地潜水时大多数情况下都能遇见它们；"季节性"表示在所列月份内可靠出现；其他任何情况都是意外惊喜，而非计划中的保障。
| 目的地 | 可靠性 | 月份 | 备注 |
|---|---|---|---|
| Cairns & the Ribbon ReefsAustralia | Resident: seen on most dives | 全年皆宜 | |
| North & South Malé AtollsMaldives | Resident: seen on most dives | 全年皆宜 | |
| PalauPalau | Resident: seen on most dives | 全年皆宜 | |
| FakaravaFrench Polynesia | Resident: seen on most dives | 全年皆宜 | |
| Sipadan & MabulMalaysia | Occasional | 全年皆宜 |
最佳月份一览
深入了解
栖息地: Reef passes, drop-offs, lagoons, and surge zones, anywhere baitfish can be pinned against structure or surface
分布范围: Tropical Indo-Pacific from South Africa and the Red Sea to Hawaii and the central Pacific atolls
习性: The reef's linebacker: a deep-bodied silver-black predator that hunts in blitzing runs, alone or in packs, using divers' bubbles and even sharks as cover for ambushes. In passes it stacks into current with the grey reef sharks, waiting on the tide; around spawns it gathers in agitated hundreds.
食性: Fish, crustaceans, and cephalopods; documented snatching seabirds off the surface at some atolls
体型: 通常约 0.9 m; 记录深度可达 1.7 m (total length; big adults exceed 60 kg, exceptional fish 80).
与它相处时的行为守则
No feeding, keep catch well away from your body where spearfishing is practiced, and enjoy the ambush behavior without trying to herd baitfish toward the hunters.
保育
Least Concern overall but locally depleted near population centers, where its size and boldness make it an easy spear and line target; atoll reserves hold the great concentrations.
以此著称的已标注潜点
高亮显示的潜点由编辑团队为该物种标注；数字为1990年以来潜点约5公里范围内的GBIF出现记录数。
观看
来自官方渠道
Wildlife of Monterey | New film in our auditorium
Live Aviary Cam | Monterey Bay Aquarium
Live Aviary Cam | Monterey Bay Aquarium
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