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What is a Port Jackson shark?
Where do Port Jackson sharks live?
How do you identify a Port Jackson shark?
How old do Port Jackson sharks get?
The Port Jackson Shark occurs in southern Australian waters from southern Queensland south to Tasmania and west to the central coast of Western Australia. There are some questionable records of the Port Jackson Sharks being caught as far north as York Sound in Western Australia.
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.
- Port Jackson Shark Facts
- Habitat and Range
- Feeding Behavior
- Social Behavior
- Breeding
- Humans and Conservation
The dorsal fins’ spines are thought to be the source of one of the family’s common names, “Horn Sharks”. According to many on-line sources, these spines are reputed to be venomous. It sounded fishy to us (pun intended), and we could not find reliable support of the claim – in fact, one resource from the University of Michigan said that they are NOT...
Map Of The Port Jackson Shark’s Habitat The distribution of the Port Jackson Shark covers the tropical marine waters of southern Australian, from south Queensland to Tasmania, and west to the central coast of Western Australia. Genetic evidence indicates the possibility of two distinct populations. This species is found in depths from 100 to 275 m ...
This is a nocturnal shark that feeds at night when their prey species are most active. The diet consists mainly of sea urchins. Prey items also include small fish, and benthic invertebrates such as sea stars, polychaete worms, gastropods, prawns, crabs and small fish. Unlike the “classic” shark teeth that are large and sharp, perfect for eating mea...
This species forms large aggregations of both mixed and same sex groups, as described below regarding reproduction.
Female Port Jackson Sharks become reproductively mature at 11 to 14 years of age, while males need only 8 to 10 years to reach maturity.Breeding occurs only once a year for this species. Normally males and females are segregated, using different habitats for most parts of the year. They share the same space only briefly, during the mating season. B...
Port Jackson Sharks are considered to pose no real threat to people, although they can inflict a nasty bite. The sharp spines of the dorsal fin can also be a danger when the species is handled. They are caught commonly in the gillnet fisheries of southern Australia, and sometimes are the most numerous species found in catches. However, the numbers ...
The Port Jackson Shark, also known as the Oyster Crusher, is a species of Heterodontid shark that is commonly found in the coastal waters of southern Australia. They are named after Port Jackson, which is a natural harbor in Sydney, Australia, where they are often seen.
An unusual feature of the Port Jackson Shark is their spiral shaped eggs. Females can wedge them into cracks and crevices where they are held in place by the corkscrew-like grooves. Listed as least concern by the IUCN.
Nov 14, 2023 · In this blog, we’ll shine a spotlight on the Port Jackson shark, a brilliantly unique-looking shark that calls Sydney Harbour its home. Port Jackson sharks share the same broad, flat nose as other bull sharks but what makes them unique is their harness-like bands that wrap around its body.
The Port Jackson shark is a nocturnal, bottom dwelling ‘bullhead’ shark endemic to the Great Southern Reef. These sharks grow up to 1.65m and can live for more than 30 years. They usually live at depths of less than 100 metres but have been known to go as deep as 275 metres.
