Sharks
Whitetip Reef Shark
Triaenodon obesus · Cartilaginous fish — family Carcharhinidae
The whitetip reef shark is the reef's off-duty predator: slim, gray-brown, white-flagged on dorsal and tail tips, draped over a sand patch beneath a ledge in groups of three or six, gills sighing. Divers step over them, almost literally, on a thousand Indo-Pacific reefs. Come back after dark and the same animals hunt like ferrets, jamming into coral heads until fish panic into open water. At Cocos's Manuelita the night shift numbers in the hundreds and ranks among diving's great spectacles. Long-lived, small-littered, and reef-bound, whitetips have quietly declined across much of Southeast Asia even as protected populations thrive.
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 |
|---|---|---|---|
| Galápagos IslandsEcuador | Resident — seen on most dives | 全年皆宜 | |
| Sipadan & MabulMalaysia | Resident — seen on most dives | 全年皆宜 | |
| PalauPalau | Resident — seen on most dives | 全年皆宜 | |
| Cocos IslandCosta Rica | Resident — seen on most dives | 全年皆宜 | |
| Tubbataha ReefsPhilippines | Resident — seen on most dives | Mar–Jun | |
| Sea of Cortez & Cabo PulmoMexico | Resident — seen on most dives | 全年皆宜 |
最佳月份一览
深入了解
栖息地: Coral reefs with caves, ledges, and swim-throughs; rests by day on sand patches and inside overhangs
分布范围: Indo-Pacific and Eastern Pacific — Red Sea to Hawaii and French Polynesia, plus Cocos, Malpelo, the Galápagos, and Central American coasts
习性: One of the few sharks that can pump water over its gills at rest, so days are spent stacked in caves or piled on sand, dozing in loose heaps. At night the species transforms into a relentless pack hunter, writhing into crevices after sleeping fish — the basis of Cocos Island's famous night dive.
食性: Reef fish, octopus, crabs, and lobster extracted from holes at night with a slender, flexible body built for the job
体型: 通常约 1.2 m; 记录深度可达 1.7 m (total length).
与它相处时的行为守则
Never block a cave mouth where sharks are resting, don't touch or prod dozing animals, and on night hunts hold your light steady off to the side rather than pinning fish for the pack.
保育
Assessed Vulnerable in 2020; heavy inshore fishing across the Coral Triangle drives the decline, while reserves such as Cocos and Tubbataha show how quickly protected populations stabilize.
以此著称的已标注潜点
观看
来自官方渠道
Best Places to Dive with Whale Sharks
Outrageously Tiny Fish
Sink or Swim? with Monét X Change | Monterey Bay Aquarium
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