Sharks
Silvertip Shark
Carcharhinus albimarginatus · Cartilaginous fish — family Carcharhinidae
A silvertip's arrival changes the temperature of a dive. The shape reads at distance — heavier than a grey reef shark, every fin edged in white as if dipped in paint — and the approach is pure confidence, a straight line ending in a slow bank a meter or two away. They own the deep edges of remote reefs: Osprey's North Horn, the Burma Banks, the seamounts of the Revillagigedos. Encounters feel like an audience granted rather than a sighting achieved. Slow to mature and faithful to isolated sites, silvertips vanish quickly when longlines find their banks, so the remaining strongholds sit mostly inside marine parks and far from ports.
इसे कहाँ और कब देखें
"निवासी" का अर्थ है कि उस गंतव्य पर अधिकांश डाइव्स में उनसे मुलाकात होती है; "मौसमी" का अर्थ है कि वे सूचीबद्ध महीनों में विश्वसनीय रूप से मौजूद रहते हैं; इसके अलावा जो भी मिले वह बोनस है, योजना नहीं।
| गंतव्य | विश्वसनीयता | माह | नोट्स |
|---|---|---|---|
| Socorro & the RevillagigedosMexico | Resident — seen on most dives | साल भर | |
| Coral Sea & Osprey ReefAustralia | Resident — seen on most dives | साल भर | |
| Mergui ArchipelagoMyanmar | Seasonal — reliable in season | Nov–Apr | |
| RangiroaFrench Polynesia | Occasional | साल भर | |
| Kimbe BayPapua New Guinea | Occasional | साल भर |
एक नज़र में सर्वश्रेष्ठ महीना
इन्हें समझना
आवास: Offshore banks, seamount flanks, and steep outer-reef drop-offs, typically deeper than its reef-shark relatives
रेंज: Patchy across the tropical Indo-Pacific and Eastern Pacific — East Africa, the Andaman Sea, Indonesia, Papua New Guinea, the Coral Sea, French Polynesia, and offshore Mexico and Colombia
व्यवहार: The boss of the drop-off. Silvertips carry themselves with a directness that greys and blacktips lack, approaching divers head-on for a close inspection pass before resuming patrol. Every fin wears a brilliant white margin, unmistakable when the animal banks in the blue.
आहार: Reef and pelagic fish, including smaller sharks and rays; frequently dominant over other species at a carcass or feed
आकार: आमतौर पर लगभग 1.8 m; दर्ज अधिकतम गहराई 2.7 m (total length; a heavier, broader-shouldered build than the grey reef sharks it resembles).
इसके आसपास कैसे व्यवहार करें
Meet the head-on approach calmly without retreating mid-pass, stay off the bait line at feeds, and keep gauges and hoses clipped tight — silvertips are known to test dangling objects.
संरक्षण
Assessed Vulnerable in 2020; isolated island populations show sharp declines wherever offshore fishing reaches, and recolonization between distant banks is slow.
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