The smooth hammerhead shark is a medium-sized hammerhead shark (family Sphyrnidae) growing to a maximum length of c.400 cm total length or c.310 cm fork length. OUR DATA: We use the most recent data from these primary sources: AnAge, UMICH, Max Planck, PanTHERIA, Arkive, UKC, AKC.
Smooth Hammerhead, Sphyrna zygaena. Although it varies depending on the species, most hammerheads have a lifespan between 35 – 30 years. Discover How Long Scalloped hammerhead Lives. Few adult smooth hammerheads have been measured in waters around New Zealand, but one of nine measured from surface longliners was 280 cm fork length or about 360 cm total length (Francis 2010).
The 5 smaller species (S. tudes, S. corona, S. media, S. tiburo and E. blochii) are unlikely to be confused with the 4 larger species. It is differentiated by its broad, flat un-notched head and smooth back, lacking a mid-dorsal ridge. Weight: 18 kg (40 lbs). The Greek word sphyrna translates into "hammer" in English, referring to the shape of this shark's head. Fish caught from coastal waters off Puerto Los Cabos, Baja California Sur, July 2008. Originally known as Zygaena lewini, its genus name was later changed to its current name. The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark, and part of the family Sphyrnidae. The smooth hammerhead (S. zygaena) has a head that is similar in overall shape to the scalloped hammerhead but does not have the centrally placed indentation or notch that is characteristic of the scalloped hammerhead. Length: 1.5 m (4 ft 11 in).
Great hammerheads mate via internal fertilization and give birth to live young – anywhere from 6 to 42 pups – once every two years. Hammerhead sharks are consummate predators that use their oddly shaped heads to improve their ability to find prey. Great hammerhead sharks also have a faster growth rate than the other hammerhead species and therefore reach maturity earlier, between 5 and 9 years old.
The smooth hammerhead (S. zygaena) looks closest to its scalloped cousin.
Its first dorsal fin is moderately tall with a rounded apex and is falcate (strongly curbed or hook like) in shape with a free rear tip in front of the origin of the pelvic fins. A unique characteristic of hammerhead sharks is that – unlike most sharks – they swim in schools during the day and only become solitary hunters at night.
The Smooth Hammerhead, Sphyrna zygaena, is a member of the Hammerhead Shark or Sphyrnidae Family, and is known in Mexico as cornuda prieta. Average Lifespan: 25 ... great hammerhead, bonnethead, smalleye hammerhead, and smooth hammerhead. Of 25 weighed from trawl captures, …
Copyright 2020 smooth hammerhead lifespan