Grey Reef Shark
Grey reef sharks are one of the most common sharks in Indo-Pacific waters, this shark inhabits reefs, passes and drop-offs. When picture the archetypal “shark”, the image in their heads is usually very similar to the look of the grey reef shark.
Kingdom - Animalia
Phylum - Chordata
Class - Chondrichthyes
Subclass - Elasmobranchii
Order - Carcharhiniformes
Family - Carcharhinidae
Genus - Carcharhinus
Species – C. amblyrhynchos
Common Name – Grey or Gray Reef Shark, Black-V Whaler, Whaler Shark, Longnose Blacktail Shark, BronzeWhaler, Fowler’s Whaler, Grey Whaler, Graceful Whaler. Many of its common names are used interchangeably withother sharks in the genus Carcharhinus.
These sharks are one of the few species in which a specific threat display has been observed. When the shark is agitated, it will swim infigure-8 loops with its pectoral fins pointing downward, its snout pointingupward, and its back arched in a “hunch”. If it continues to be antagonized after displaying this threat behavior, it will likely charge and attack.
The grey reef shark is not typically aggressive, though it should be treated with caution and respect as it has the potential to cause injury if provoked. They may attack spearfishermen, drawn to the movements andsignals sent out by the distressed fish, and any diver that witnesses a threat display should retreat immediately.
These sharks are quite social and are not territorial, often gathering in large, loose groups. They feed mainly on fish, cephalopods (octopi and squid) and crustaceans (crabs and lobsters).
Like all requiem sharks in the family Carcharinidae, greyreef sharks are viviparous, meaning they give birth to live young. Females bearone to four pups, with larger females giving birth to more young. Gestationlasts 9-14 months.
This shark features the typical shark body type, built for moving swiftly through the water in search of prey. Grey reef sharks, true to their name, are a bronzy-grey above and white below. There is often a prominent black edge along the tail fin, and sometimes features a white edge to its first dorsal fin, though this is not always present. They can grow to over 8 feet in length, but typically do not reach more than 6 feet.
The grey reef shark was first described in 1856 and was placed in the genus Carcharias, but was later moved into its present position as a member of the Carcharhinus.
This species has become popular for “shark-watching” ecotourism ventures.
The grey reef is considered “Near Threatened”. They are caught in fisheries for use in shark fin soup, and their reef habitats are alsothreatened. This creature’s slow maturation and reproductive rate makesrecovery a slow and challenging process.
The Little Guides: Sharks, Edited by Leighton Taylor, 1999
Sharks of the World, 2005, Leonard Compagno, Marc Dando, Sarah Fowler
https://en.wikipedia.org/wiki/Grey_reef_shark