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Silvertip Shark
Fish crepuscular

Silvertip Shark

Carcharhinus albimarginatus

Commanding the deep reef with grace and authority, the Silvertip Shark is a masterpiece of evolution. Easily identified by the striking white trim on its fins, this bold predator is a bucket-list find for every underwater observer.

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Quick Identification

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Size

2 to 3 meters (6.6 to 10 feet) in length; weighs up to 160 kg (350 lbs)

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Colors

Dark grey to bronze-grey upper body with a stark white underside; all fins feature distinct white tips and trailing edges

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Key Features

  • Brilliant white margins on the tips and trailing edges of all fins
  • Large, stocky body with a long, broadly rounded snout
  • First dorsal fin is large and triangular with a pointed apex
  • Eyes are large and circular with nictitating membranes

When You’ll See Them

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Activity pattern crepuscular
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Peak hours 5:00 AM - 8:00 AM and 5:00 PM - 8:00 PM
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Season Year-round in tropical climates
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Diet A versatile apex predator that feeds primarily on bottom-dwelling and pelagic bony fishes such as groupers, mackerel, and tuna. They also hunt cephalopods like squid and octopus, and occasionally smaller sharks or eagle rays.
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Habitat Tropical marine waters, typically found around offshore islands, coral reefs, and steep underwater ledges at depths ranging from the surface down to 800 meters (2,600 feet).

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Behavior

Silvertip Sharks are known as the bold aristocrats of the reef. Unlike many other shark species that may shy away from divers or disturbances, the Silvertip is remarkably inquisitive and assertive. They are often observed patrolling the steep outer slopes of coral reefs and deep-water drop-offs, moving with a powerful, effortless glide. While generally solitary, they are highly competitive and will often dominate other reef species of similar size during a feed.

This species is well-known for its 'threat display' if it feels threatened or cornered. This behavior involves an exaggerated swimming motion, an arched back, and lowered pectoral fins. While they are not naturally aggressive toward humans without provocation, their size and curious nature mean they should be treated with significant respect by underwater photographers and divers.

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Camera Tips

Capturing the Silvertip Shark requires a specialized underwater setup, typically a Baited Remote Underwater Video (BRUV) or a stationary reef-mounted housing. Because these sharks frequent deep drop-offs and reef edges, place your camera along 'highways' where the reef meets the deep blue. High-current areas are often more productive as they bring in the nutrients and smaller fish that Silvertips follow. Set your camera at a slight upward angle to capture the shark's silhouette against the sunlight filtering through the surface, which highlights the iconic white tips on their fins.

Lighting is the most critical factor for deep-water captures. Beyond 10 meters, the ocean filters out red and yellow light, making everything look blue or green. To truly showcase the bronze-grey skin and white markings of the Silvertip, use high-CRI (Color Rendering Index) external video lights. If you are using a motion-trigger system, ensure it is tuned for the reflective quality of shark skin, as their metallic sheen can sometimes overexpose the shot if your lights are too close to the lens.

Silvertips are remarkably curious and will often investigate the camera gear itself. Use a rugged, bite-proof housing (such as aluminum) and ensure the mount is weighted or bolted to a heavy substrate. These sharks have been known to 'taste-test' camera equipment, so avoid using loose cables or brightly colored floats that might look like small prey. For the best cinematic results, set your camera to at least 60 frames per second; this allows you to slow down the footage in post-production to appreciate the fluid, rhythmic undulation of their powerful bodies.

Similar Species

Species that look similar or are commonly confused with Silvertip Shark.

Grey Reef Shark

Grey Reef Sharks lack the white margins on all fins and usually have a distinct black trailing edge on their tail fin.

Whitetip Reef Shark

Much smaller and more slender, often seen resting on the sandy bottom; white tips are only on the dorsal and caudal fins.

Oceanic Whitetip Shark

Features huge, rounded paddle-like pectoral fins with mottled white tips; strictly an open-ocean species away from reefs.

Frequently Asked Questions

Silvertip Sharks are crepuscular, meaning they are most active during the low-light hours of dawn and dusk. This is when they move up from deeper waters to hunt along the reef edges.
Positioning cameras near natural 'cleaning stations' or steep drop-offs where currents are strong is the most effective method. For scientific study, researchers often use scent-based lures in a protected bait cage.
Their diet consists of a wide variety of reef fish, including wrasses and groupers, as well as open-ocean fish like tuna. They also enjoy squid and occasionally smaller sharks.
No, Silvertip Sharks are strictly marine and found far offshore near tropical reefs and islands. You won't find them in coastal suburban estuaries or brackish water.
Silvertip Sharks are much larger and stockier, with white margins on ALL their fins. Whitetip Reef Sharks are slender, much smaller, and only have white tips on their dorsal and tail fins.

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