The Great Barracuda

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The Great Barracuda (Sphyraena barracuda), also known as the Giant Barracuda, beloging Actinipterygii class,  Scombriformes order, Sphyraenidae family. The great barracuda is present in tropical to warm temperate waters, in subtropical parts of the Indian, Red Sea, Pacific and Atlantic oceans, from mangrove areas to deep reef, with a lower depth limit of 110 meters. Grande Barracuda Great Barracuda Sphyraena barracuda intotheblue.it

Great barracudas are large fish. Mature specimens are usually around 60–100 cm. in length and weigh 2.5–9.0 kg. Exceptionally large specimens can exceed 1.5 m. and weigh over 23 kg. The record-sized specimen caught on rod-and-reel weighed 46,72 kg and measured 1.7 m, while an even longer example measured 2 m. Great barracuda is blue-gray above, fading to silvery and chalky-white below. Sometimes, a row of darker cross-bars occurs on its upper side, with black blotches on each lower side. The second dorsal fin and the anal and caudal fins range from dark violet to black with white tips.

In general, barracudas are elongated fish with powerful jaws. The lower jaw of the large mouth juts out beyond the upper. Barracudas possess strong, fang-like teeth that are unequal in size and set in sockets in the jaws and on the roof of the mouth. The head is quite large and is pointed and pike-like in appearance. The gill covers do not have spines and are covered with small scales. The two dorsal fins are widely separated, with the first having five spines and the second having one spine and 9 soft rays. The second dorsal fin equals the anal fin in size and is situated more or less above it. The lateral line is prominent and extends straight from head to tail. The spinous dorsal fin is situated above the pelvis. The hind end of the caudal fin is forked or concave, and it is set at the end of a stout peduncle. The pectoral fins are placed low down on the sides. The barracuda has a large swim bladder.  Barracudas appear in open seas. They are voracious predators and hunt by ambush. They rely on surprise and short bursts of speed up to 43 km/h to overrun their prey, sacrificing maneuverability. Barracudas are more or less solitary in their habits. Young and half-grown fish frequently congregate in shoals.

Barracudas can reach at least 14 years of age. The diets of these top predators of reefs are composed almost totally of fish, cephalopods, and occasionally shrimp. Swimmers have been reported being bitten by barracuda, but such incidents are rare and possibly caused by poor visibility. Barracudas may mistake objects that glint and shine for prey. Grande Barracuda Great Barracuda Sphyraena barracuda intotheblue.it

Barracuda attacks on humans are rare; bites can result in lacerations and the loss of some tissue.

(extract from Wikipedia)

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Questo articolo è stato scritto il / This article was written on 23/11/2019