The 'longfin mako', ''Isurus paucus'', is a large
shark of the
Lamnidae family, found in
temperate and
tropical seas worldwide. It is commonly called just 'mako', although that name is shared with the closely related
shortfin mako, ''Isurus oxyrinchus''.
The longfin mako's full-grown length is over 4
m, and it has a dark bluish back and white underside. The
pectoral fins are about as long as the head or longer, relatively broad-tipped in young and adults. The snout is usually narrowly to bluntly pointed, usually not acute. The cusps of upper and lower anterior teeth are straight, with tips not reversed. The
caudal fin is
lunate, with a very long lower lobe.
The longfin mako's speed has been recorded at over 60mph in short bursts, and they can jump up to 6 m (20 ft)in the air.
The longfin mako shark is a yolk-sac
ovoviviparous shark, meaning it gives birth to live young which feed from a sac full of yolk in the womb. The
gestation period for a mako shark is 15–18 months. Embryos in the female's body consume each other to get nutrients, with only two pups usually produced in a litter. This
intrauterine cannibalism is common in sharks.
The name "mako" comes from the
Māori language, but the
etymology is unclear.
[1][2]
This species' often slimmer build and long, broad-tipped pectoral fins suggest that it is slower and less active than its better-known relative, the shortfin mako, ''Isurus oxyrinchus''.
Mako sharks in popular culture
★ Three genetically engineered mako sharks are the chief antagonists of
1999 science fiction/
horror film ''
Deep Blue Sea''.
★ A female mako shark also starred in Mathias Bradley's novel, ''Mako: Journey of Discovery'' as the human-friendly ''Sunyui''. In the sequel, ''Mako: Journey of Discovery 2: Sunyui's Family'', ''Sunyui'' becomes the main star at SeaWorld, Japan, along with her mate, ''Rio''. In the end, ''Sunyui'' mates with ''Rio'' and she has two litters of three pups during her two pregnancies.
★ A Mako shark is also seen on
Jackass 2:The Movie, one of the stars kicks one in the head while being used as human bait in a skit.
Notes
1. Maori language - a glossary of useful words from the language of the Maori New Zealand
2. Online Etymology Dictionary
References
★
★ Tony Ayling & Geoffrey Cox, ''Collins Guide to the Sea Fishes of New Zealand'', (William Collins Publishers Ltd, Auckland, New Zealand
1982) ISBN 0-00-216987-8