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All three thresher shark species have been listed as vulnerable by the World Conservation Union since 2007 (IUCN). [2] All three are popular big-game sport fish , [ 3 ] and additionally they are hunted commercially for their meat , livers (for shark liver oil ), skin (for shagreen ) and fins (for use in delicacies such as shark-fin soup ).
The fins are all black except for the caudal fin, and occasionally the pectoral fins, which can be orange or red. [3] Its caudal fin is forked and colored a bright red that extends to the last few scales of the caudal peduncle. [3] The coloration of the tail can dim or fade when the individual is stressed, sick, or in poor water conditions. [2]
Fisch is a municipality in the Trier-Saarburg district, in Rhineland-Palatinate, Germany. Its population is 414 (Dec. 2020). Its population is 414 (Dec. 2020). History
The basking shark (Cetorhinus maximus) is the second-largest living shark and fish, [4] after the whale shark.It is one of three plankton-eating shark species, along with the whale shark and megamouth shark.
The frilled-shark embryo is 3.0 cm (1.2 in) long, has a pointed head, slightly developed jaws, nascent external gills, and possesses all fins. The growth of the jaw for elasmobranchs seem to begin early in the embryonic stage, however, it has been observed not to be the case for frilled sharks.
A small percentage of the population, mostly or all females, are much larger. The longest great hammerhead on record was 6.1 m (20 ft). [ 7 ] [ 8 ] The heaviest known great hammerhead is a female, 4.4 m (14 ft) long and 580 kg (1,280 lb) in weight caught off Boca Grande, Florida , in 2006.
The cookiecutter shark (Isistius brasiliensis), also called the cigar shark, is a species of small squaliform shark in the family Dalatiidae.This shark lives in warm, oceanic waters worldwide, particularly near islands, and has been recorded as deep as 3.7 km (2.3 mi).
The bala shark (Balantiocheilos melanopterus), also known as the tricolor shark, tricolor sharkminnow, silver shark, or shark minnow, is a fish of the family Cyprinidae, and is one of the two species in the genus Balantiocheilos. [2]