Rays
Marbled Ray
Taeniurops meyeni · Cartilaginous fish — family Dasyatidae
The marbled ray is the stingray built to seamount scale: a smoky, mottled disc nearly two meters across, so heavy it seems to settle into the reef rather than rest on it. At Cocos Island they are everywhere — layered on cleaning ledges, flapping ponderously between coral heads, shadowing the hammerhead schools like gray moons. The marbling that names it ranges from salt-and-pepper speckle to black storm-cloud blotches, no two alike. Divers who know only the skittish smaller dasyatids are startled by its composure; it will hold its patch of sand while an entire group files past, eye swiveling, tail undisturbed.
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 |
|---|---|---|---|
| Galápagos IslandsEcuador | Resident — seen on most dives | 年間を通じて | |
| Cocos IslandCosta Rica | Resident — seen on most dives | 年間を通じて | |
| MalpeloColombia | Resident — seen on most dives | 年間を通じて | |
| Socorro & the RevillagigedosMexico | Occasional | 年間を通じて |
ベストな月、一目でわかる
| 月 | 安定して出会える目的地 |
|---|---|
| January | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| February | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| March | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| April | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| May | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| June | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| July | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| August | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| September | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| October | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| November | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
| December | Galápagos Islands · Cocos Island · Malpelo · Socorro & the Revillagigedos |
理解を深める
ハビタット: Rocky and coral reefs, seamount plateaus, and adjacent sand; often at cleaning stations
分布域: Tropical Indo-Pacific from the Red Sea and East Africa to Japan and Australia, plus Eastern Pacific outposts — famously abundant at Cocos Island and the Galápagos
生態・行動: A ponderous, dignified giant that drapes itself over rocks and sand like a thrown blanket, mottled black-and-gray above with a fringe of rippling disc edge. At Cocos they pile onto cleaning stations several deep and trail hunting hammerheads and jacks scavenging behind them.
食性: Bottom fish, crabs, and shrimp pinned beneath the disc
サイズ: 目安は 1.4 m; 確認済みの最大記録 1.8 m (disc width; a genuinely massive stingray, thick-bodied and round).
出会ったときの正しいふるまい方
Do not settle on sand without scanning it first, keep off cleaning stations, and never swim low over a resting ray's back — approach from the side where it can see you.
保全
Assessed Vulnerable; taken widely in inshore and trawl fisheries across the Indo-Pacific, with reserves in the Eastern Pacific protecting its most visible populations.
目撃情報で知られるダイブサイト
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