Isurus paucus  Guitart, 1966

Longfin mako
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Isurus paucus   AquaMaps   Data sources: GBIF OBIS
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Image of Isurus paucus (Longfin mako)
Isurus paucus
Picture by Montealegre-Quijano, S.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Lamniformes (Mackerel sharks) > Lamnidae (Mackerel sharks or white shark)
Etymology: Isurus: Greek, isos = equal + Greek, oura = tail (Ref. 45335).

Environment / Climate / Range Ecology

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 200 m (Ref. 43278).   Subtropical; 46°N - 35°S, 180°W - 180°E (Ref. 43278)

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 205 - 228 cm
Max length : 417 cm TL male/unsexed; (Ref. 247); 417.0 cm TL (female); common length : 200 cm TL male/unsexed; (Ref. 5217)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Pectoral fins about as long as head or longer, relatively broad-tipped in young and adults; snout usually narrowly to bluntly pointed, usually not acute; cusps of upper and lower anterior teeth straighter, with tips not reversed (Ref. 43278). Caudal fin lunate, with a very long lower lobe (Ref. 13574). Dark blue above, white below, with dusky markings on underside of snout, around mouth (Ref. 6581).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri

Western Atlantic: Gulf Stream and Florida, USA; also Cuba. Reported from southern Brazil (Ref. 13574). Eastern Atlantic: Guinea, Ghana. Western Indian Ocean: Madagascar. Pacific Ocean: Taiwan, near Phoenix Island, and north of Hawaii (Ref. 13574).

Biology     Glossary (e.g. epibenthic)

Oceanic species that probably approaches land to give birth (Ref. 13574, 58302). Epipelagic (Ref. 58302). Presumably feeds on schooling fishes and pelagic cephalopods (Ref. 247). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). With 2 pups in a litter (Ref. 247). Potentially dangerous because of its large size and big teeth (Ref. 13574). Utilized fresh, frozen, and dried or salted for human consumption (Ref. 247); meat (lower quality), fins (high value in adults), jaws (highly prized), skin and cartilage (Ref.58048).

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO.

IUCN Red List Status (Ref. 90363)

  Vulnerable (VU) (A2bd+3d+4bd)

Threat to humans

  Traumatogenic (Ref. 13574)




Human uses

Fisheries: minor commercial
FAO(fisheries: production, species profile; publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7813   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01020 (0.00451 - 0.02309), b=3.05 (2.85 - 3.25), based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  4.5   ±0.8 se; Based on diet studies.
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Fec=2).
Vulnerability (Ref. 59153):  Very high vulnerability (86 of 100) .
Price category (Ref. 80766):   Medium.