Thursday, June 12

Marine Species under Threat: Sawfish | giant sawfish

Giant Sawfish
Sawfish, also known as carpenter sharks, Smalltooth Sawfish or Wide Sawfish, are the family (Pristidae) of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged so as to resemble a saw. All species in the family are either endangered or critically endangered. Several species of sawfishes can grow to about 7 m (23 ft). The family as a whole is largely unknown and little studied. The Pristidae are the only living family within the order Pristiformes, whose name comes from the Ancient Greek

Sawfishes are marine, euryhaline (moving between freshwater and saltwater), or marginal (brackish water) species, and are widely distributed across tropical and warm temperate near shore ocean waters in the Atlantic and Indo-Pacific. They inhabit inshore coastal areas such as coastal lagoons, estuarine environments, and the lower, brackish river deltas. Some species are known to frequently penetrate far into rivers and major lakes such as Lake Nicaragua.

Sawfishes are nocturnal, usually sleeping during the day and hunting at night. Despite fearsome appearances, they do not attack people unless provoked or surprised. The small-tooth sawfish is well known by fishermen as a prize game fish because of the fight it puts up once hooked.

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