Sandbar shark: Difference between revisions
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{{Taxobox |
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| name = Sandbar shark |
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| image = Carcharhinus plumbeus.jpg |
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| status = LR/nt |
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| status_system = IUCN2.3 |
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| status_ref = <ref name="iucn">{{IUCN2006|assessors=Shark Specialist Group|year=2000|id=3853|title=Carcharhinus plumbeus|downloaded=May 9, 2006}}</ref> |
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| trend = unknown |
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| regnum = [[Animal]]ia |
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| phylum = [[Chordate|Chordata]] |
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| classis = [[Chondrichthyes]] |
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| subclassis = [[Elasmobranchii]] |
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| ordo = [[Carcharhiniformes]] |
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| familia = [[Carcharhinidae]] |
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| genus = ''[[Carcharhinus]]'' |
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| species = '''''C. plumbeus''''' |
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| binomial = ''Carcharhinus plumbeus'' |
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| binomial_authority = ([[Giovanni Domenico Nardo|Nardo]], 1827) |
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| range_map = Carcharhinus plumbeus distmap.png |
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| range_map_width = 240px |
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| range_map_caption = Range of the sandbar shark |
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}} |
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{{Sharksportal}} |
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The '''sandbar shark''', ''Carcharhinus plumbeus'', is a species of [[requiem shark]], family [[Carcharhinidae]], native to the [[Atlantic Ocean]] and the [[Indo-Pacific]]. It is distinguishable by its very high first [[dorsal fin]].<ref name="ferrari">{{cite book |author=Ferrari, A. and A. |title=Sharks |publisher=Firefly Books |place=New York |date=2002 |isbn=1552096297}}</ref> |
The '''sandbar shark''', ''Carcharhinus plumbeus'', is a species of [[requiem shark]], family [[Carcharhinidae]], native to the [[Atlantic Ocean]] and the [[Indo-Pacific]]. It is distinguishable by its very high first [[dorsal fin]].<ref name="ferrari">{{cite book |author=Ferrari, A. and A. |title=Sharks |publisher=Firefly Books |place=New York |date=2002 |isbn=1552096297}}</ref> |
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Revision as of 20:35, 25 February 2009
Sandbar shark | |
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Scientific classification | |
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Species: | C. plumbeus
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Binomial name | |
Carcharhinus plumbeus (Nardo, 1827)
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Range of the sandbar shark |
Template:FixHTML Template:Sharksportal Template:FixHTML The sandbar shark, Carcharhinus plumbeus, is a species of requiem shark, family Carcharhinidae, native to the Atlantic Ocean and the Indo-Pacific. It is distinguishable by its very high first dorsal fin.[2]
The sandbar shark is also called the thickskin shark or brown shark. It is one of the biggest coastal sharks in the world, and is closely related to the dusky shark, the bignose shark, and the bull shark. Its dorsal fin is triangular and very high, and weighs as much as 18% of the shark's whole body. Sandbar sharks usually have heavy-set bodies and rounded snouts that are shorter than the average shark's snout. Their upper teeth have broadly uneven cusps with sharp edges. Its second dorsal fin and anal fin are close to the same height. Females can grow to 2/2.5 m, males up to 1.8 m. Its body color can vary from a bluish to a brownish grey to a bronze, with a white or pale underside. Sandbar sharks swim alone or gather in sex-segregated schools that vary in size. They are most active at night, at dawn, and at dusk. It is one of the species of Shark that may have been responsible for the Jersey Shore shark attacks of 1916
The sandbar shark, true to its nickname, is commonly found over muddy or sandy bottoms in shallow coastal waters such as bays, estuaries, harbors, or the mouths of rivers, but it also swims in deeper waters (200 m or more) as well as intertidal zones. Sandbar sharks are found in tropical to temperate waters worldwide; in the western Atlantic they range from Massachusetts to Brazil. Juveniles are common to abundant in the lower Chesapeake Bay, which is probably one of the most important nursery grounds on the United States east coast for this species.
The sandbar shark's main predator is man. Natural predators are the tiger sharks, and rarely by great white sharks. The sandbar sharks prey on fish, rays, and other bottom dwelling animals.
Sandbar sharks are viviparous. The embryos are supported in placental yolk sac inside the mother. The female reproduces every two years. They give birth to 8 to 10 young. They carry the young for 1 year before birth.
See also
References
- ^ Template:IUCN2006
- ^ Ferrari, A. and A. (2002). Sharks. New York: Firefly Books. ISBN 1552096297.
- "Carcharhinus plumbeus". Integrated Taxonomic Information System. 23 January.
{{cite web}}
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and|year=
/|date=
mismatch (help) - Froese, Rainer; Pauly, Daniel (eds.) (2005). "Carcharhinus plumbeus" in FishBase. 10 2005 version.