Turtles
Hawksbill Turtle
Eretmochelys imbricata · Marine reptile — family Cheloniidae
Every reef diver's favorite worker, the hawksbill is a compact turtle with a raptor's beak, tortoiseshell shingles overlapping down its back, and no time to waste. You hear one before you see it — the rasp and crunch of a sponge being demolished — then find the animal head-down in a crevice, hind flippers braced, scattering fragments for the wrasses that attend it. That tortoiseshell, amber marbled with black, drove centuries of harvest for combs and spectacle frames and pushed the species to Critically Endangered; trade is banned now, and reefs from Cozumel to Sipadan still offer daily audiences with the survivor.
どこで・いつ見られるか
「常駐（Resident）」とは、そのダイビングスポットでのほとんどのダイブで遭遇できることを意味します。「季節限定（Seasonal）」とは、記載された月に確実に見られることを意味します。それ以外の出会いはボーナスであり、計画の前提にはなりません。
| 目的地 | 信頼性 | 月 | メモ |
|---|---|---|---|
| CozumelMexico | Resident — seen on most dives | 年間を通じて | |
| BonaireBonaire | Resident — seen on most dives | 年間を通じて | |
| Sharm El Sheikh & Ras MohammedEgypt | Resident — seen on most dives | 年間を通じて | |
| Tubbataha ReefsPhilippines | Resident — seen on most dives | Mar–Jun | |
| SeychellesSeychelles | Resident — seen on most dives | Oct–Feb |
ベストな月、一目でわかる
| 月 | 安定して出会える目的地 |
|---|---|
| January | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Seychelles |
| February | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Seychelles |
| March | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Tubbataha Reefs |
| April | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Tubbataha Reefs |
| May | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Tubbataha Reefs |
| June | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Tubbataha Reefs |
| July | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed |
| August | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed |
| September | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed |
| October | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Seychelles |
| November | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Seychelles |
| December | Cozumel · Bonaire · Sharm El Sheikh & Ras Mohammed · Seychelles |
理解を深める
ハビタット: Coral reefs above all — forages among sponges on walls and ledges, resting in crevices
分布域: Circumtropical, tied tightly to coral reef systems of the Caribbean, Red Sea, Indian Ocean, Coral Triangle, and Pacific
生態・行動: The busiest of the turtles: where greens graze placidly, hawksbills work the reef like foragers on a deadline, tearing at sponges with the hooked beak, wedging under plate corals, surfacing briefly and diving back to the job. Usually solitary and often indifferent to a quiet diver at close range.
食性: A sponge specialist — one of very few vertebrates that can live on toxic reef sponges — plus tunicates, anemones, and jellyfish
サイズ: 目安は 0.8 m; 確認済みの最大記録 1.0 m (carapace length).
出会ったときの正しいふるまい方
Stay off the reef while watching one feed, no touching or trailing a foraging animal from above, and let it breathe unobstructed — hawksbills spook if boxed against the wall.
保全
Critically Endangered after centuries of tortoiseshell trade; CITES bans the trade and many nesting beaches are guarded, but illegal trinket sales persist — buy nothing made of shell.
目撃情報で知られるダイブサイト
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