Sharks
Sand Tiger (Ragged-Tooth) Shark
Carcharias taurus · Cartilaginous fish — family Odontaspididae
Nothing sells the sand tiger encounter like the mismatch between look and manner. The mouth is a cutlery drawer tipped out — rows of ragged, protruding teeth beneath a flat predatory eye — yet the animal wearing it hangs in a wreck's shadow like a parade balloon, easing between divers without a flicker of concern. Off North Carolina they gather on Second World War hulls by the dozen, motionless in the gloom of a hold. Off South Africa the 'raggies' pack Aliwal's gullies in winter. Slowest of breeders — two pups after intrauterine cannibalism winnows each litter — the species collapses fast wherever fishing finds it, hence the Critically Endangered listing.
Nerede ve ne zaman görülür
"Yerleşik" o destinasyonda yapılan dalışların büyük çoğunluğunda karşılaştığınız anlamına gelir; "mevsimsel" belirtilen aylarda güvenilir biçimde orada bulunur; bunların dışındaki her şey bonus sayılır, plan yapılmaz.
| Destinasyon | Güvenilirlik | Aylar | Notlar |
|---|---|---|---|
| North Carolina Outer BanksUnited States | Resident — seen on most dives | May–Oct | |
| Aliwal Shoal & UmkomaasSouth Africa | Seasonal — reliable in season | Jun–Nov | |
| Sodwana BaySouth Africa | Occasional | Yıl boyunca |
En iyi ay, kısaca
| Ay | Güvenilir destinasyonlar |
|---|---|
| January | Sodwana Bay |
| February | Sodwana Bay |
| March | Sodwana Bay |
| April | Sodwana Bay |
| May | North Carolina Outer Banks · Sodwana Bay |
| June | North Carolina Outer Banks · Aliwal Shoal & Umkomaas · Sodwana Bay |
| July | North Carolina Outer Banks · Aliwal Shoal & Umkomaas · Sodwana Bay |
| August | North Carolina Outer Banks · Aliwal Shoal & Umkomaas · Sodwana Bay |
| September | North Carolina Outer Banks · Aliwal Shoal & Umkomaas · Sodwana Bay |
| October | North Carolina Outer Banks · Aliwal Shoal & Umkomaas · Sodwana Bay |
| November | Aliwal Shoal & Umkomaas · Sodwana Bay |
| December | Sodwana Bay |
Onları anlamak
Habitat: Wrecks, ledges, gutters, and caves over the continental shelf; gulps surface air to hover neutrally in the water column
Dağılım: Warm temperate coasts of the Atlantic, Indian, and western Pacific oceans — famously the US East Coast, South Africa, and eastern Australia, where it is called the grey nurse shark
Davranış: Hangs almost motionless in shaded structure by day, mouth slightly agape in a permanent bristle of teeth, drifting among divers with slow tail strokes. The only shark known to gulp and store surface air for buoyancy. Aggregates seasonally at traditional sites for mating and gestation.
Diyet: Fish including small sharks and rays, hunted mostly at night; the snaggle-toothed jaws are for gripping, not shearing
Boyut: tipik olarak yaklaşık 2.5 m; şu ana kadar belgelendi 3.2 m (total length).
Yanında nasıl davranılır
Move slowly through wreck interiors and gutters they occupy, never block a shark's exit, no touching during close drift-bys, and follow local aggregation-site rules on diver numbers and approach distance.
Koruma
Critically Endangered globally as of 2021. Australia protected its grey nurse populations decades ago after spearfishing collapses; recovery everywhere is slow arithmetic against a two-pup reproductive rate.
Bunlarla bilinen haritalanmış dalış noktaları
İzle
Resmi kanallardan
Best Places to Dive with Whale Sharks
Outrageously Tiny Fish
Sink or Swim? with Monét X Change | Monterey Bay Aquarium
Videolar, içerik üreticilerinin kendi kanallarına yerleştirilmiş bağlantılardır — hiçbir içeriği biz barındırmıyoruz ve her şeyin kaynağını belirtiyoruz.