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The bull shark (Carcharhinus leucas)

Venezuela epaiva Offline
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( This post was last modified: 10-22-2017, 09:19 AM by epaiva )

The bull shark (Carcharhinus leucas), also known as the Zambezi shark or, unofficially, as Zambi in Africa and Lake Nicaragua shark in Nicaragua, is a requiem shark commonly found worldwide in warm, shallow waters along coasts and in rivers. The bull shark is known for its aggressive nature, predilection for warm shallow water, and presence in brackish and freshwater systems including estuaries and rivers.
Bull sharks can thrive in both salt and fresh water and can travel far up rivers. They have been known to travel up the Mississippi River as far as Alton, Illinois, although few freshwater human-shark interactions have been recorded. Larger sized bull sharks are probably responsible for the majority of near-shore shark attacks, including many bites attributed to other species.
Unlike the river sharks of the genus Glyphis, bull sharks are not true freshwater sharks, despite their ability to survive in freshwater habitats.
Bull sharks are large and stout, with females being larger than males. The bull shark can be up to 81 cm (2.66 ft) in length at birth. Adult female bull sharks average 2.4 m (7.9 ft) long and typically weigh 130 kg (290 lb), whereas the slightly smaller adult male averages 2.25 m (7.4 ft) and 95 kg (209 lb). While a maximum size of 3.5 m (11 ft) is commonly reported, a single record exists of a female specimen of exactly 4.0 m (13.1 ft). The maximum recorded weight of a bull shark was 315 kg (694 lb).
The bull shark's diet consists mainly of bony fish and small sharks, including other bull sharks, but can also include turtles, birds, dolphins, terrestrial mammals, crustaceans, echinoderms, and stingrays. They hunt in murky waters where it is harder for the prey to see the shark coming.
credit to @zehngut @deepdivemexico @grillobsb and @living.animals


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Venezuela epaiva Offline
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( This post was last modified: 10-22-2017, 09:28 AM by epaiva )

The bull shark is commonly found worldwide in coastal areas of warm oceans, in rivers and lakes, and occasionally salt and freshwater streams if they are deep enough. It is found to a depth of 150 m (490 ft), but does not usually swim deeper than 30 m (98 ft). The bull shark has traveled 4,000 km (2,500 mi) up the Amazon River to Iquitos in Peru and north Bolivia. It also lives in freshwater Lake Nicaragua, in the Ganges and Brahmaputra Rivers of West Bengal, and Assam in Eastern India and adjoining Bangladesh.[citation needed] It can live in water with a high salt content as in St. Lucia Estuary in South Africa. Bull sharks have been recorded in the Tigris River since at least 1924 as far upriver as Baghdad. The bull shark is generally prolific in the warm, coastal waters and estuarine systems of the Mozambique Channel and southward, including Kwa-Zulu Natal and Mozambique. The species has a distinct preference for warm currents.
credits to @vozesemluto @tomasvignaudphotography @the_sharkman and @jacra_


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BorneanTiger Offline
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Cannibalism: https://vt.co/animals/stories/cannibal-g...al-attack/
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How these attacks by these sharks compare to those of others: https://www.floridamuseum.ufl.edu/shark-...mplicated/
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Venezuela epaiva Offline
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Book Sharks of the World (Leonardo Compagno, Marc Dando, and Sarah Fowler)

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BorneanTiger Offline
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( This post was last modified: 01-19-2020, 11:22 PM by BorneanTiger )

Check this out, for the 2nd year in a row, one of the biggest bull sharks was caught in the Gulf of Oman (part of the Arabian Sea) off the coast of Fujairah in the eastern part of the UAE, weighing about 350 kg (770 lbs) and measuring 3 m (9.8 ft): https://www.khaleejtimes.com/uae/fujaira...ark-in-uae, https://www.gulftoday.ae/news/2020/01/19...ing-350-kg


In February last year, there was a pregnant shark weighing 347.8 kg (767 lb) and measuring about the same in length: https://www.thenational.ae/uae/fisherman...k-1.828581, https://gulfnews.com/uae/environment/vid...1.62215563

Bull sharks have a bite force up to 5,914 newtons (1,330 lbf), weight for weight the highest among all investigated cartilaginous fishes: https://www.sciencedirect.com/science/ar...via%3Dihub, https://www.bbc.co.uk/nature/19869336

Bull sharks are large and stout, with females being larger than males. The bull shark can be up to 81 cm (2.66 ft) in length at birth. Adult female bull sharks average 2.4 m (7.9 ft) long and typically weigh 130 kg (290 lb), whereas the slightly smaller adult male averages 2.25 m (7.4 ft) and 95 kg (209 lb). While a maximum size of 3.5 m (11 ft) is commonly reported, a single record exists of a female specimen of exactly 4.0 m (13.1 ft). It was considered that 315 kg (694 lb) was the maximum recorded weight of a bull shark, but that higher weights were possible: http://www.sharkdivermag.com/issue17-bull-shark.html, https://www.floridamuseum.ufl.edu/discov...us-leucas/, http://www.rsmas.miami.edu/blog/2012/07/...sharkever/ (https://web.archive.org/web/201302150635...sharkever/), http://www.totalprosports.com/2011/08/04...-caught/#2

In early June 2012, off the coast of the Florida Keys along the Florida Straits (on the border of the Gulf of Mexico and the Western Atlantic Ocean), a female believed to measure at least 8 ft (2.4 m) and 800–850 lbs (360–390 kg) was caught by members of the R.J. Dunlap Marine Conservation Program: http://www.rsmas.miami.edu/blog/2012/07/...sharkever/ (https://web.archive.org/web/201302150635...sharkever/)

Members of the R.J. Dunlap Marine Conservation Program with the bull shark: 
   
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