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| − | {{Taxobox
| + | <noinclude><translate><!--T:1--> |
| − | | color = pink
| + | </noinclude> |
| − | | name = Shortfin mako shark
| + | {{species id |
| − | | status = VU
| + | |common_name=Shortfin Mako |
| − | | status_system = iucn3.1
| + | |latin_name=Isurus oxyrinchus |
| − | | status_ref = <ref>{{cite press release |title=More oceanic sharks added to the IUCN Red List |publisher=[[IUCN]] |date=2007-02-22 |url=http://www.iucn.org/en/news/archive/2007/02/22_pr_sharks.htm |format= |language= |accessdate=2007-02-25 |quote=The global threat status was heightened for shortfin mako, a favorite shark among commercial and recreational fishermen, from ''Near Threatened'' in 2000 to ''Vulnerable'' today.}}</ref>
| + | |image=Isurus oxyrinchus by mark conlin2.JPG |
| − | | image = Shortfin mako.jpg | + | |description= |
| − | | image_width = 250px
| + | The 'Shortfin Mako Shark (''Isurus oxyrinchus''—meaning "sharp nose") is a large mackerel shark. It is commonly referred to as the ''mako shark'' together with the longfin mako shark (''Isurus paucus''). |
| − | | regnum = [[Animal]]ia
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| − | | phylum = [[Chordate|Chordata]]
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| − | | classis = [[Chondrichthyes]]
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| − | | subclassis = [[Elasmobranchii]] | |
| − | | ordo = [[Lamniformes]]
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| − | | familia = [[Lamnidae]]
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| − | | genus = ''[[Isurus]]''
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| − | | species = '''''I. oxyrinchus'''''
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| − | | range_map = Isurus oxyrinchus distmap.png | |
| − | | range_map_width = 250px | |
| − | | range_map_caption = Range of shortfin mako shark (in blue)
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| − | | binomial = ''Isurus oxyrinchus''
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| − | | binomial_authority = [[Constantine Samuel Rafinesque-Schmaltz|Rafinesque]], 1810
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| − | }}
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| − | {{Sharksportal}}
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| − | The '''shortfin mako shark''', ''Isurus oxyrinchus'', ("sharp nose") is a large [[shark]] of the [[Lamnidae]] family. Along with the closely related [[longfin mako]], ''Isurus paucus'', it is commonly called just '''mako shark'''. They are known to be incredibly fast swimmers with superior lateral movements. | |
| − | ==Anatomy and appearance==
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| − | [[Image:Mako shark overview.jpg|left|thumb| A shortfin mako shark.]]
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| − | [[Image:Close up of mako shark head 005.jpg|left|thumb| A close-up of a shortfin mako shark's head.]]
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| − | With a full-grown length of 2.75 – 4 m (9 – 13 ft) it has been reported to weigh up to 800 kg (1,750 lb) and has a bluish back and white underside. Although the sexes grow at about the same rate, females are thought to have a longer [[life span]], and grow larger and weigh more than the males. Shortfin makos are renowned for their speed and their ability to leap out of the water. In fact, there are cases when an angry mako will jump out of the water and into the boat after it has been caught on the hook. Mako sharks have a better hydrodynamic shape than all other sharks, and this, combined with the lamnidae's typical high aerobic muscle mass, reflects in the spectacular speed and agility of both the longfin and shortfin makos{{Fact|date=February 2007}}.
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| − | The shortfin mako shark is a sleek spindle shaped shark with a long conical snout. This shark has short pectoral fins and a crescent shaped caudal (tail) fin. There is a distinct caudal keel on the caudal base. Its second dorsal fin is much smaller than the first. The teeth are slender and slightly curved with no lateral cusps, and are visible even when the mouth is closed. There is marked countershading on this shark: dorsally it is a metallic indigo blue while ventrally it is white. | + | <!--T:2--> |
| | + | The Shortfin Mako is a fairly large species of shark. An average adult specimen will measure around 3.2 meters in length and weigh from 60-135 kg. Females are larger than males. The largest "mako" taken (not verified between the two species) on hook-and-line was 505.8 kg. |
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| − | ==Naming==
| + | <!--T:3--> |
| − | The name "mako" comes from the [[Māori language]], but the [[etymology]] is unclear.<ref>{{cite web|url=http://www.maori.info/maori_language.htm|title=Maori language - a glossary of useful words from the language of the Maori New Zealand|accessdate=2006-08-11}}</ref> A typical [[Gloss (transliteration)|gloss]] given for "mako" is "large blue shark". The term entered the English language in [[1727]]. It can also mean "man-eater". <ref>{{cite web|url=http://www.etymonline.com/index.php?term=mako|title=Online Etymology Dictionary|accessdate=2006-08-11}}</ref> | + | The Shortfin Mako is cylindrical in shape, with a vertically-elongated tail that assists its highly hydrodynamic lifestyle. The Mako is in fact the fastest shark of all. This species' color is brilliant metallic blue dorsally and white ventrally, although coloration varies as the shark ages and increases in size. The line of demarcation between blue and white on the body is distinct. The underside of the snout and the area around the mouth are white. Larger specimens tend to possess darker color that extends onto parts of the body that are white in smaller individuals. The juvenile mako differs in that it has a clear blackish stain on the tip of the snout. The Longfin mako shark very much resembles the Shortfin, but has larger pectoral fins, dark rather than pale coloration around the mouth and larger eyes. The presence of only one lateral keel on the tail and the lack of lateral cusps on the teeth distinguish the makos from the closely related porbeagle sharks of the genus ''Lamna''. [https://www.youtube.com/watch?v=yhHDXk8g4FE Mako surprises diver] |
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| − | ==Diet==
| + | <!--T:4--> |
| − | The shortfin mako feeds mainly upon bony fishes including mackerels, tunas, bonitos and swordfish, but may also eat other sharks, porpoises and sea turtles.
| + | |range= |
| − | | + | The shortfin mako inhabits offshore temperate and tropical seas worldwide. The closely related longfin mako shark, ''Isurus paucus'', is found in the Gulf Stream or warmer offshore waters. |
| − | ==Distribution==
| + | }} |
| − | The shortfin mako is found in [[temperate]] and [[tropical]] seas worldwide. The closely related [[longfin mako shark]], ''Isurus paucus'', is found in the [[Gulf Stream]] or warmer offshore waters. | + | <noinclude></translate></noinclude> |
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| − | Shortfin mako sharks live in tropical and temperate offshore waters. They are a pelagic species that occur from the surface down to depths of 150 meters (490 feet). This shark is seldom found in waters colder than 16 degrees Celsius.
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| − | The shortfin mako is found worldwide. In the western Atlantic it can be found from Argentina and the Gulf of Mexico to Browns Bank off of Nova Scotia. In Canadian waters these sharks are not abundant as they prefer warm waters, but neither are they rare. Shortfin makos are often found in the same waters as swordfish as they are a source of food and both fish prefer similar environmental conditions.
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| − | | |
| − | ==Behavior==
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| − | The shortfin mako's speed has been recorded at 50 km/h (31 mph) and there are reports that it can achieve bursts of up to 74 km/h (46 mph).<ref>{{cite web|url=http://www.elasmo-research.org/education/shark_profiles/i_oxyrinchus.htm|title=Biology of the Shortfin Mako|publisher=ReefQuest Centre for Shark Research|accessdate=2006-08-12|author=R. Aidan Martin}}</ref> Shortfin makos can jump up to 9 m (28 ft) in the air. Due to its speed and agility, this high-leaping fish is sought as [[Game (food)|game]] worldwide. This shark is highly migratory. They are also one of four warm-blooded sharks which helps them in their speed.
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| − | There is still some uncertainty about its life-span, but it is suspected to reach ages of between 11-23 years.
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| − | | |
| − | ==Reproduction==
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| − | The shortfin mako shark is a yolk-sac [[Ovoviviparity|ovoviviparous]] shark, meaning it gives birth to live young who feed from a sac full of yolk in the womb. The gestation period for a mako shark is 15 to 18 months. Shortfin mako embryos in the female's body consume each other to get nutrients. This is called [[intrauterine cannibalism]].
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| − | Female shortfin makos usually become sexually mature at a length of 3 meters. Developing embryos feed on unfertilized eggs in the uterus during the gestation period of 15-18 months. The 4-18 surviving young are born live in the late winter and early spring at a length of about 70 cm, but have no placental connection during development (ovoviviparity). It is believed that females may rest for 18 months after birth before the next batch of eggs are fertilized.
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| − | Male shortfin makos reach sexual maturity within 4 years and will promptly proceed to lob one into both female shortfin makos and any other anmal capable to accomodating its massive cock. In rare isolated cases, deep sea divers have fallen victim to some of the most brutal of sexual encounters being gaping and bleeding from at least one if not two major orifaces.
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| − | ==Distinguishing characteristics==
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| − | * Teeth are visible even when the mouth is closed
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| − | * Teeth are long and slender with smooth-edged cusps
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| − | * Distinct countershading, dorsally blue and ventrally white
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| − | * Moderately short pectoral fins
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| − | * Underside of the snout is white
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| − | * Lunate tail and caudal keel
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| − | | |
| − | ==Notes==
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| − | <references /> | |
| − | | |
| − | ==References==
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| − | {{wikispecies|Isurus oxyrinchus}}
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| − | * {{IUCN2006|assessors=Stevens|year=2000|id=39341|title=Isurus oxyrinchus|downloaded=06 May 2006}} Database entry includes justification for why this species is near threatened
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| − | * {{ITIS|ID=159924|taxon=Isurus oxyrinchus|year=2006|date=23 January}}
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| − | * {{FishBase species | genus = Isurus | species = oxyrinchus | month = May | year = 2006}}
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| − | | |
| − | ==External links==
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| − | * ARKive - [http://www.arkive.org/species/GES/fish/Isurus_oxyrinchus/ images and movies of the shortfin mako ''(Isurus oxyrinchus)'']
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| − | * {{marinebio|id369|name=Shortfin mako shark, ''Isurus oxyrinchus''}}
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| − | [[Category:Sharks]]
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| − | [[Category:Lamnidae]]
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| − | [[Category:Ovoviviparous fish]]
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| − | | |
| − | [[ca:Solraig]]
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| − | [[de:Kurzflossen-Mako]]
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| − | [[es:Isurus oxyrinchus]]
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| − | [[fr:Requin mako]]
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| − | [[ko:청상아리]]
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| − | [[it:Isurus oxyrinchus]]
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| − | [[nl:Kortvinmakreelhaai]]
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| − | [[ja:アオザメ]]
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| − | [[no:Makrellhai]]
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| − | [[pt:Tubarão-mako]]
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| − | [[sk:Mako rýchly]]
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| − | [[fi:Makohai]]
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| − | [[sv:Makohaj]]
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| − | [[vi:Cá mập mako vây ngắn]]
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| − | [[zh:尖吻鲭鲨]]
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