Reef Fish
Porcupinefish
Diodon hystrix · Bony fish — family Diodontidae (porcupinefishes); the spot-fin porcupinefish, largest of the family
By day a porcupinefish idles under ledges like a parked balloon with oversized, wet eyes — approachable, unhurried, and endearingly awkward, all of which reflects a defense budget spent elsewhere. The body is armored in spines that lie flat until the fish gulps water and inflates into a sphere too large and too spiky to swallow; its tissues can also carry tetrodotoxin. That armory frees it to be calm around divers. Night is the working shift, when it cruises sand and reef cracking urchins, crabs, and mollusks with fused, beak-like tooth plates. The spot-fin porcupinefish is the giant of the family and circles the tropics worldwide, turning up from Caribbean wrecks to Red Sea coral gardens. Never provoke inflation — the display costs the animal dearly, and a stressed fish can swallow air at the surface and die.
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 |
|---|---|---|---|
| CozumelMexico | Resident — seen on most dives | 全年皆宜 | |
| BonaireBonaire | Resident — seen on most dives | 全年皆宜 | |
| Sharm El Sheikh & Ras MohammedEgypt | Resident — seen on most dives | 全年皆宜 | |
| North & South Malé AtollsMaldives | Resident — seen on most dives | 全年皆宜 | |
| RoatánHonduras | Resident — seen on most dives | 全年皆宜 | |
| Kona, HawaiʻiUnited States | Resident — seen on most dives | 全年皆宜 |
最佳月份一览
深入了解
栖息地: Ledges, caves, and wreck interiors by day; sand flats, seagrass, and reef margins on night forays.
分布范围: Circumtropical — Caribbean and western Atlantic, eastern Pacific, Indo-Pacific, and Red Sea.
习性: Docile and slow by day, idling under cover; inflates by gulping water into an elastic stomach only as a last resort, erecting spines that lie flat the rest of the time.
食性: Sea urchins, crabs, and hard-shelled mollusks crushed with fused, beak-like tooth plates at night.
体型: 通常约 0.4 m; 记录深度可达 0.9 m (total length; most reef encounters are 30–50 cm fish).
与它相处时的行为守则
Approach slowly at eye level and enjoy the stare; never grab, chase, or pin one to trigger the balloon display.
保育
Widespread and secure; some are dried and sold inflated as curios, a trade worth refusing.
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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