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The shortfin mako shark (Isurus oxyrinchus), also known as the bonito shark or blue pointer, is a species of large mackerel shark of the family Lamnidae, with a worldwide distribution in all temperate and tropical waters. It is a large-sized shark, with larger individuals attaining lengths of up to 4.5 m and weights of 505.8 kg. However, most are smaller; typically, females measure 2.8-2.9 m and males measure 2-2.2 m on average.

A pelagic species, the shortfin mako is usually found in depths between 0-150 m, but can dive to depths of up to 750 m deep.

Etymology
"Mako" originates as a word from the Māori language, meaning "shark" or "shark tooth". Following the Māori language, "mako" in English is both singular and plural. The word may have originated in a dialectal variation as it is similar to the common words for shark in a number of Polynesian languages—makō in the Kāi Tahu Māori dialect, mangō in other Māori dialects, "mago" in Samoan, ma'o in Tahitian, and mano in Hawaiian. The first written usage is in Samuel Lee and Thomas Kendall's 1820 book Grammar and vocabulary of the language of New Zealand, which states, "Máko; A certain fish". Richard Taylor's 1848 book A leaf from the natural history of New Zealand is more elaborate and states: "Mako, the shark which has the tooth so highly prized by the Maoris".

The scientific name Isurus oxyrinchus literally means "equal-tailed sharp snout". The genus name Isurus is a portmanteau derived from the Ancient Greek words ῐ̓́σος (isos, meaning "equal") prefixed to οὐρά (ourā́, meaning "tail"). The specific name oxyrinchus is also a portmanteau derived from the Ancient Greek ὀξῠ́ς (oxús, meaning “sharp”) and ῥῠ́γχος (rhúnkhos, meaning “snout”).

Conservation
The shortfin mako is currently classified as Endangered by the IUCN, having been uplisted from Vulnerable in 2019 and Near threatened in 2007.

In August 2019, twenty-eight member states of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) published a proposal to add the shortfin mako to Appendix II of the convention, which would internationally classify the species as one that requires control of trade to ensure its survival. If adopted, the proposal would enact international regulations that require members to provide proof of legal and sustainable harvest when trading the species.

In the United States, the shortfin mako is classified under two groups each representing the Atlantic and Pacific populations of the species and managed by corresponding local administrations. Regulations have been enacted on both groups requiring a permit and certified equipment to catch the shark as well as a limit on the number of individuals that can be caught. Since 2017, the Atlantic population has been declared overfished with numbers significantly below target levels and as a result, lowered the catch limit by 50%. In 2019, a new regulation was added requiring recreational fishermen to release all live males measuring less than 71 in and females less than 83 in in total length. The Pacific population is considered to be above target levels and not subject to overfishing. Because of this, there are no regulations specifically for that group except for ones intended to protect protected species and habitats.