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FAO Species Identification Guide for Fishery Purposes Western

FAO Species Identification Guide for Fishery Purposes Western

FAO Species Identification Guide for Fishery Purposes Western

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Carcharhinidae 1345<br />

Carcharhinus plumbeus (Nardo, 1827)<br />

Frequent synonyms / misidentifications: Carcharhinus milberti (Valenciennes in Müller and Henle,<br />

1841) / None.<br />

<strong>FAO</strong> names: En - Sandbar shark; Fr - Requin gris (= Réquiem plombe, Area 31); Sp - Tiburón trozo<br />

(= Tiburón de Milberto).<br />

Diagnostic characters: A medium-sized, comparatively<br />

stout shark. Snout broadly rounded and short,<br />

its length less than width of mouth but greater than<br />

distance between nostrils; spiracles absent; teeth finely<br />

serrate, those in upper jaw broadly triangular and<br />

erect to slightly oblique, with broad, heavy cusps; lower<br />

teeth with narrow, erect cusps. First dorsal fin<br />

triangular, very high (height of fin twice the length of<br />

snout in adults), with a pointed or narrowly rounded<br />

apex, its origin over insertions of pectoral fins;origin<br />

of second dorsal fin about opposite that of anal fin, its<br />

inner margin less than twice the fin height; pectoral fins<br />

long and broad, their corners narrowly rounded or pointed. Interdorsal ridge present. Dermal denticles<br />

widely spaced, their free edges without definite teeth. Colour: back grey, or rarely brown; belly whitish.<br />

Size: Maximum total length about 2.4 m, records to 3 m uncertain; size at birth 60 to 75 cm.<br />

Habitat, biology, and fisheries: A coastal species usually found over sandy or muddy bottoms; often<br />

coming near estuaries but sometimes occurring in oceanic waters to depths of 280 m. Viviparous, number<br />

of young 1 to 14. Feeds mainly on bottom-dwelling animals, including flatfishes, rays, crabs, and snails;<br />

also on schooling fishes and squids. Not known to be dangerous to humans. Caught with longlines,<br />

hook-and-line, and set-bottom nets and is also fished with rod and reel by sports anglers as a game fish.<br />

It is utilized fresh, fresh-frozen, smoked, and dried-salted <strong>for</strong> human consumption; the hides are prized <strong>for</strong><br />

leather and other products; the fins are prepared as the base <strong>for</strong> shark-fin soup; the liver is extracted <strong>for</strong><br />

oil (rich in vitamins).<br />

Distribution: Wide-ranging<br />

in tropical and subtropical<br />

areas of the eastern and<br />

western Atlantic, from the<br />

Mediterranean Sea, Indian<br />

Ocean and western Central<br />

Pacific to Hawaii; records<br />

from the eastern Central<br />

Pacific are uncertain. ?<br />

?<br />

?<br />

ventral view<br />

of head<br />

upper and lower<br />

tooth near centre

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