Sharks
Grey Nurse Shark
Carcharias taurus · Cartilaginous fish, family Odontaspididae
Australia's grey nurse is the same ragged-toothed species divers meet on North Carolina wrecks and Aliwal's caves, but its story here is distinct and cautionary. Labeled a killer on looks alone, it was speared toward oblivion by the 1970s before becoming one of the world's first protected sharks. Today small aggregations still trace slow ovals through gutters at a handful of east-coast sites, gliding among divers with prehistoric calm. The listed destinations in this atlas brush only the edges of its range (the celebrated aggregation reefs lie along the New South Wales and southern Queensland coast), so treat any sighting elsewhere in Australia as a bonus, not a plan.
Di mana dan kapan melihatnya
"Resident" berarti sebagian besar penyelaman di destinasi tersebut akan menjumpai mereka; "seasonal" berarti kehadirannya dapat diandalkan pada bulan-bulan yang tercantum; selain itu adalah bonus, bukan rencana.
Kami belum memverifikasi tempat yang terpercaya untuk spesies ini. Daripada menebak, kami biarkan ini kosong sampai ada sumber yang valid.
Memahaminya
Habitat: Sandy gutters, bommies, and cave mouths along rocky reefs of the Australian coast; the same air-gulping hover as its overseas populations
Sebaran: Australian name for the sand tiger shark, Carcharias taurus. Two Australian populations: a small east-coast population from southern Queensland through New South Wales, and a distinct, poorly known west-coast population
Perilaku: Days are spent circling slowly in traditional gutters and around pinnacles in loose aggregations, mouths bristling, bodies nearly still in the surge. Individuals return to the same handful of sites for years, which concentrates both divers and risk in the same places.
Diet: Reef and pelagic fish, rays, and small sharks, taken mostly at night
Ukuran: biasanya sekitar 2.5 m; terdokumentasi hingga 3.2 m (total length).
Cara berperilaku di sekitarnya
Australian critical-habitat rules are specific: no blocking gutters or cave entrances, no chasing or touching, approach along the side rather than head-on, keep group sizes modest, and no scooters or feeding at aggregation sites.
Konservasi
The east Australian population is listed Critically Endangered nationally, numbering in the low thousands at best; protected since 1984 in NSW, with designated critical-habitat sites carrying enforceable approach rules.
Situs-situs terdata yang dikenal dengan hal itu
Lokasi yang disorot dipetakan untuk spesies ini oleh editor kami; angka-angkanya adalah catatan kemunculan GBIF yang dicatat dalam radius sekitar 5 km dari suatu lokasi sejak 1990.
Tonton
Dari saluran resmi
Wildlife of Monterey | New film in our auditorium
Live Aviary Cam | Monterey Bay Aquarium
Live Aviary Cam | Monterey Bay Aquarium
Video adalah tautan tertanam ke saluran milik kreatornya sendiri. Kami tidak meng-host apa pun dan selalu mencantumkan kredit.