Shortfin mako (Isurus oxyrinchus) fish species and Shortfin mako information

Scientific Name
Isurus oxyrinchus

Common Name
Shortfin mako

Biology
Oceanic, but sometimes found close inshore. Usually in surface waters , down to about 150 m. Coastal, epipelagic at 1->500 m. Isotope analysis has shown that shortfin mako is the highest level fish predator in oceanic waters off eastern Australia. Adults feed on bony fishes, other sharks , cephalopods; larger individuals may feed on larger prey such as billfish and small cetaceans. Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother. With 4-16 young of about 60-70 cm long. Gestation period lasts 15-18 months, spawning cycle is every 3 years. Some authors have erroneously assumed that two age rings are deposited per year by this species, thus underesti

Classification

Classified By

Rafinesque, 1810

Class

Sharks and Rays (Elasmobranchii)

Order

Mackerel sharks (Lamniformes)

Family

Mackerel sharks or white shark (Lamnidae)

Distribution

Region

Cosmopolitan in temperate and tropical seas (Ref. 6871, 11230). Western Atlantic

Distribution

Cosmopolitan in temperate and tropical seas. Western Atlantic: Gulf of Maine to southern Brazil and Argentina , including the Gulf of Mexico and Caribbean. Eastern Atlantic: Norway to South Africa, including the Mediterranean. Indo-Pacific: East Africa to Hawaii, north to Primorskiy Kray , south to Australia and New Zealand. Eastern Pacific: south of Aleutian Islands and from southern California, USA to Chile.

Range

61°N - 56°S, 180°W - 180°E

Environment

Climate

Subtropical

Water Temperature From

16 °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

740 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; oceanodromous ; depth range 0 - 740 m , usually 100 - 150 m

Trophic Level

4.5 s.e. 0.72 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

400 cm

Common Length

270 cm

Phylogenetic Diversity Index

PD50 = 0.7813 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; gamefish: yes

Vulnerability

Very high vulnerability (86 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (rm=0.051; K=0.2; tmax=28; tm=20; Fec=4)

Threat To Humans

Traumatogenic (Ref. 247)

IUCN Red List Status

Vulnerable (VU)(A2abd+3bd+4abd)

Shortfin mako (Isurus oxyrinchus) fish species and information / pictures of Shortfin mako - Isurus oxyrinchus

Shortfin mako (Isurus oxyrinchus) fish species information

Classification

Distribution

Environment

Physical Size and Genetics

Human Uses and Population