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| shortfin mako shark | |
|---|---|
| Name | Shortfin mako shark |
| Status | EN |
| Status system | IUCN3.1 |
| Genus | Isurus |
| Species | oxyrinchus |
| Authority | Rafinesque, 1810 |
shortfin mako shark The shortfin mako shark is a pelagic shark species recognized for high-speed swimming and an endothermic physiology. It occupies temperate and tropical oceans worldwide and is notable in fisheries, sport angling, and scientific research on locomotion and thermal biology. Populations face pressures from commercial fisheries, international management regimes, and conservation organizations.
The species is classified within the family Lamnidae and the genus Isurus, described by Constantine Samuel Rafinesque in 1810; historical taxonomy has involved comparisons with species treated by Carl Linnaeus, Georges Cuvier, and later revisions by researchers affiliated with institutions such as the Smithsonian Institution, Natural History Museum, London, and the American Museum of Natural History. Nomenclatural decisions have been considered in works published through the International Commission on Zoological Nomenclature and catalogued in compilations by the International Union for Conservation of Nature and regional authorities like the National Oceanic and Atmospheric Administration and the Food and Agriculture Organization. Molecular phylogenies using data from laboratories at universities like Harvard University, University of Tokyo, and University of Miami have resolved relationships among lamnids, often referencing fossil taxa curated at the American Museum of Natural History and the Natural History Museum, Paris.
Adults show a streamlined fusiform body with a conical snout and crescentic caudal fin, features long studied by comparative anatomists at the Royal Society and engineers at institutions like Massachusetts Institute of Technology and California Institute of Technology. The species exhibits regional endothermy similar to that documented in great white shark studies at the Scripps Institution of Oceanography and thermal physiology research at Woods Hole Oceanographic Institution and Monterey Bay Aquarium Research Institute. Morphological metrics measured in museum collections at the Field Museum of Natural History, Natural History Museum, London, and Smithsonian Institution include body length, mass, and dentition patterns comparable to lamnids described by Louis Agassiz. Muscle histology and myoglobin concentrations have been analyzed in collaboration with laboratories at University of Oxford and University of California, San Diego.
The species ranges widely across the Atlantic, Pacific, and Indian Oceans, with records documented in regional databases maintained by agencies such as the National Oceanic and Atmospheric Administration, the European Commission, and the Australian Fisheries Management Authority. Sightings and tagging programs run by organizations including the Monterey Bay Aquarium, Oceana, and the Shark Trust report occurrences from zones near the North Atlantic Ocean countries, the Mediterranean Sea, coasts of Japan, South Africa, Australia, and the waters off Baja California. Habitat use spans epipelagic to mesopelagic depths, informed by satellite tagging projects from research groups at Woods Hole Oceanographic Institution, Dalhousie University, and KAUST.
Predatory behavior includes pursuit of fast-bodied prey such as tunas and billfishes, with ecological interactions comparable to predator–prey dynamics studied in ecosystems like the California Current, Gulf Stream, and Kuroshio Current. Tagged individuals have shown long-distance migrations across ocean basins in telemetry studies by teams from the University of Miami, Stanford University, and the New England Aquarium. Trophic ecology has been examined through stomach content analyses and stable isotope work by researchers at University of British Columbia and University of California, Santa Cruz, linking makos to fisheries for skipjack tuna, yellowfin tuna, and swordfish.
Reproductive mode is obligate viviparity with oophagy, a subject of anatomical and developmental studies in departments at Columbia University, University of Tokyo, and the Marine Biological Laboratory. Life-history parameters including age at maturity, growth rates, and longevity have been estimated using vertebral band counts and validated by otolith and tagging approaches used by scientists at NOAA Fisheries and the International Commission for the Conservation of Atlantic Tunas. Populations exhibit relatively low fecundity and late maturity, traits that align with demographic analyses from conservation biology groups at IUCN and university research centers such as University of Exeter.
The species is targeted and taken as bycatch in commercial fisheries including longline and gillnet fleets, managed under frameworks like those of the International Commission for the Conservation of Atlantic Tunas, regional fisheries management organizations such as the Western and Central Pacific Fisheries Commission, and national authorities including Fisheries and Oceans Canada and NZ Ministry for Primary Industries. Landings, trade in fins and meat, and sport-capture records are reported by NGOs including TRAFFIC and WWF and regulated under measures promoted by the Convention on International Trade in Endangered Species of Wild Fauna and Flora in some jurisdictions. Conservation status assessments by the IUCN and proposals discussed at meetings of the Convention on Migratory Species reflect concerns over declining populations and call for bycatch mitigation, catch limits, and protected areas informed by science from institutions like the International Union for Conservation of Nature and universities worldwide.
The species appears in sport-fishing history connected to anglers and clubs such as the International Game Fish Association, and features in public exhibits at aquaria including the Monterey Bay Aquarium and the Georgia Aquarium. It has been the subject of biomechanical and bioinspired engineering studies at Massachusetts Institute of Technology, Stanford University, and ETH Zurich, informing designs in robotics and propulsion research presented at conferences hosted by the American Society of Mechanical Engineers and publications in journals associated with the Royal Society. Long-term ecological studies and tagging datasets are curated by consortia including the Global Tagging of Pelagic Predators initiative and archived in repositories supported by institutions like the Pew Charitable Trusts and the David and Lucile Packard Foundation.
Category: Sharks Category: Lamnidae