Mako shark

What it is

Mako sharks are large predatory fish belonging to the genus Isurus, which translates to 'equal tail'. These animals are largely pelagic, meaning they inhabit open ocean waters rather than coastal areas. They display a distinctive blue-grey colour scheme typical of mackerel sharks. The group includes two extant species: the shortfin mako and the longfin mako. Females are generally larger than males, showing sexual dimorphism. Adults range from 2.5 to 4.5 metres in length, with a maximum recorded weight of approximately 680 kilograms. They are renowned for their agility and speed, capable of reaching high velocities while hunting.

Where it lives

These sharks are found in pelagic environments across the world's oceans. They do not restrict themselves to specific coastal zones but roam widely in open water. The fossil record suggests ancient relatives existed during the Late Cretaceous, though modern Isurus likely appeared during the Oligocene. Molecular studies indicate their lineage diverged from the great white shark between 43 and 60 million years ago. This wide distribution allows them to thrive in various marine conditions, though they remain strictly tied to oceanic habitats.

How it lives

Mako sharks are apex predators known for exceptional speed. The shortfin mako is considered the fastest shark, achieving bursts of up to 74 km/h. The longfin mako is slower but still formidable, reaching lengths over 2.5 metres. They hunt actively in open waters, relying on speed to catch prey. Their diet consists of other fish, reflecting their role as top-tier carnivores. As members of the Lamnidae family, they share traits with other large lamnid sharks like the great white. Their predatory nature makes them significant players in marine ecosystems, controlling populations of smaller fish.

Breeding and life cycle

Information on breeding cycles or reproductive strategies is absent from the provided material.

Fish and people

Mako sharks are targeted by commercial and recreational fisheries. They are valued for their meat, which appears in markets under names like shark meat. Sport fishing also targets these fast-swimming predators due to the challenge they present. However, both species are classified as Endangered by the IUCN. Overfishing poses a significant threat to their survival. Conservation efforts are needed to protect these populations from depletion caused by human activity and demand for their flesh.

Status and threats

Both the shortfin and longfin mako sharks are classified as Endangered by the International Union for Conservation of Nature (IUCN). This status reflects severe population declines driven primarily by overfishing. Commercial fleets target them for food and sport, leading to unsustainable harvest rates. Climate change and habitat alterations may further impact their numbers. Current conservation measures aim to mitigate these threats, but the species remains vulnerable to continued exploitation without stricter management protocols.

Relatives and look-alikes

The genus Isurus is closely related to other lamnid sharks, particularly the great white shark (Carcharodon carcharias). Fossil evidence links them to extinct genera like Cosmopolitodus and Macrorhizodus. Historically, many lamnid fossils were misclassified under Isurus before being moved to separate genera. The two living species, shortfin and longfin makos, are distinct yet share similar morphological traits. They are often confused with other large pelagic sharks due to overlapping ranges and physical similarities.

Questions people ask about Mako shark

Good reading and sources

• Mako shark on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos
• Wikidata recordOpen data