Originally known as Zygaena lewini, its genus name was later changed to its current name. Females whitefin hammerhead sharks are noted to be very social.
The Whitefin hammerhead lives in the benthopelagic, marine environment.. Whitefin Hammerhead Sharks are endlessly fascinating, and are worthy not only of our academic attention, but also of our ecological support. They also have been known to eat octopuses, squids, lobsters, crabs, rays, and smaller shark species like the atlantic sharpnose shark the blacktip reef shark. It also helps with lift, speed, and maneuverability. It is a fairly large hammerhead, but is still smaller than both the great and smooth hammerheads. Whitefin hammerhead sharks are not considered a threat to humans. [17] Compared to other species, the scalloped hammerhead produces large litters,[17] and this is most likely due to high infant mortality. It has also been named Cestracion leeuwenii by Day in 1865, Zygaena erythraea by Klunzinger in 1871, Cestracion oceanica by Garman in 1913, and Sphyrna diplana by Springer in 1941. After learning Whitefin Hammerhead Shark facts, it may just become your new favorite! The younger the sharks, the closer to the surface they tend to be, while the adults are found much deeper in the ocean. The male-to-female ratio of the scalloped hammerhead is 1:1.29.
The scalloped hammerhead is a coastal pelagic species; it occurs over continental and insular shelves and in nearby deeper water. Systematics Sphyrna comes from the Greek and translates into hammer. Also, should a population get depleted, it recovers through reproduction and not immigration. Species Sphyrna couardi (whitefin hammerhead). The shape of its head allows it to bury into the seafloor and pin stingrays down. K. More, © 2010 Thewebsiteofeverything.comPictures and facts of theWhitefin hammerhead (Sphyrna couardi), Picture of Sphyrna couardi has been licensed under a Creative Commons. Unlike some of its other hammerhead peers however, the Whitefin exhibits a slightly narrower bladed head. This page was last edited on 15 September 2018, at 19:05. Copyright © 2020 Welcome To SharkSider.com!.
Though there are nine other spectacular varieties of hammerhead shark, the Whitefin deserves its own special spot on the shelf, partly because of it’s interesting taxonomic history, and also because of it’s awesome characteristics. It is found in warm temperate and tropical waters, worldwide from 46°N to 36°S. It is a fairly large hammerhead, but is still smaller than both the great and smooth hammerheads. [11] Males and females differ in that males are observed to stay deeper than female sharks in general. Whitefin hammerheads have a very fast metabolism and have to eat 2% of their body weight everyday or they can starve. Larger specimens may also feed on smaller species of shark such as the blacktip reef shark, Carcharhinus melanopterus. The Whitefin Hammerhead Sphyrna couardi, is a hammerhead shark, family Sphyrnidae, found in the tropical waters of the northeastern Atlantic Ocean, from Senegal to Congo. Whitefin Hammerheads typically give birth in the summertime, in warm coastal waters. Adolescent specimens have dark areas on their caudal fins.The reproduction of this shark is ovoviviparous. Since they are already endangered, it’s important to act now, and help to preserve this unique species. The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark, and part of the family Sphyrnidae. A lack of mating scars has been found on mature females. As a result, deprivation results from migration and young growth.
There is not one documented case of a fatality related to a Whitefin Hammerhead attack.
These sharks are found in tropical waters in the eastern Atlantic off the coast of Africa. The shark's eyes and nostrils are at the tips of the extensions.
(2005). The shape of its head allows it to bury into the seafloor and pin stingrays down.
There are ten different species of hammerhead sharks, each with unique characteristics.
It is the most common of all hammerheads.
[9] During the day, they are more often found close to shore, and at night, they hunt further offshore. Whitefin hammerhead sharks are the most commonly observed species of hammerhead shark.
As a result, this causes the scalloped hammerhead to be selective where they swim and the depth at which they tend to stay. Most adult whitefin hammerheads will build up to 50 stingray barbs in their mouths and digestive tracts over a lifetime of hunting stingrays. The Whitefin Hammerhead Shark (Sphyrna couardi) is one of the most intriguing and majestic sea creatures inhabiting our vast oceans. [17] Compared to other species, the scalloped hammerhead produces large litters,[17] and this is most likely due to high infant mortality.
[13] They move in the night and use the environment as a map, similar to a human reading a topographical map. The scalloped hammerhead uses deep water to survive as safety and feeding. However, to this day, “Whitefin Hammerhead Shark” as well as the scientific “Sphyrna couardi” are recognized terms in the classification of hammerhead species, and are useful in differentiating between the more widespread Scalloped Hammerhead, and the Whitefin, which is exclusively found off of the western coast of Africa– latitudinally between Senegal and the Congo region. It can be found down to depths over 500 m (1,600 ft), but is most often found above 25 m (82 ft). These hammers are thought to enhance smell and electroreception. Whitefin Hammerheads are known to hunt in packs. They also make use of earths magnetic field. Historically, they have been known only to attack humans when they feel threatened. These sharks have a very high metabolic rate, governing behavior in acquiring food. Pups are born inside a nutrient-dense yolk sac that they feed off of until they are ready to be born. [15], Hammerhead sharks are over fished all around the world for their fins and liver oil. Whitefin hammerhead sharks have complex mating rituals that include hunting, chasing, and a synchronized dance. There are typically 15-31 pups per litter. [4], On average, males measure 1.5 to 1.8 m (4.9 to 5.9 ft) and weigh about 29 kg (64 lb) when they attain sexual maturity, whereas the larger females measure 2.5 m (8.2 ft) and weigh 80 kg (180 lb) on average at sexual maturity.
However young whitefin hammerhead sharks hunt closer to the surface, while the older sharks tend to hunt deeper in the water.
The male sex organ is know as a “clasper” and is inserted into a female’s “vent.” This is done by the male biting the female’s pectoral fin and arching his body.
First off, the Whitefin Hammerhead Shark does not have white fins. Froese, Rainer and Pauly, Daniel, eds. The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark, and part of the family Sphyrnidae.Originally known as Zygaena lewini, its genus name was later changed to its current name.The Greek word sphyrna translates into "hammer" in English, referring to the shape of this shark's head. As a result, this causes the scalloped hammerhead to be selective where they swim and the depth at which they tend to stay.
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