crisp footage of a gentle port jackson shark filmed on location near port noarlunga, south australia courtesy of one ocean global @oneoceanglobal
ambassador, maddie @maddiethiele1 - had the pleasure of meeting this lil lady today 🦈 i think she was scouting a spot to lay her egg (which you can see if you look carefully) 🤙🏼 🎵🎹 breathe again by daniel hennessy
🔵 the port jackson shark (heterodontus portusjacksoni) is a nocturnal, oviparous (egg laying) type of bullhead shark of the family heterodontidae, found in the coastal region of southern australia, including the waters off port jackson. it has a large, blunt head with prominent forehead ridges and dark brown harness-like markings on a lighter grey-brown body, and can grow up to 1.65 metres (5.5 ft) long.
the port jackson shark is a migratoryspecies, traveling south in the summer and returning north to breed in the winter. it feeds on hard-shelled mollusks, crustaceans, sea urchins, and fish. identification of this species is very easy due to the pattern of harness-like markings which crosses the eyes, runs along the back to the first dorsal fin, then crosses the side of the body, in addition to the spine in front of both dorsal fins.
it is endemic to the temperate waters around southern australia and can be found in an area stretching from southern queensland, south to tasmania, and west to the central coast of western australia. dubious reports exist of catchings as far north as western australia's york sound, and on one occasion, it has occurred off the coast of new zealand.
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