Isurus paucus, Longfin mako : fisheries

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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(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Lamniformes (Mackerel sharks) > Lamnidae (Mackerel sharks or white shark)
Etymology: Isurus: isos (Gr.), equal; oura (Gr.), tail, referring to caudal-fin lobes of I. oxyrinchus being equal in length (except that they are not; the upper is clearly longer). (See ETYFish);  paucus: Latin for scarce, referring to its relative rarity compared with I. oxyrinchus. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 1752 m (Ref. 106604). Subtropical; 46°N - 38°S, 180°W - 180°E (Ref. 43278)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | 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).

Length at first maturity / Size / Weight / Age

Maturity: Lm 216.5, range 205 - 228 cm
Max length : 427 cm TL male/unsexed; (Ref. 106604); 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).

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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). With litters of 2-8 pups (Ref. 247, Ref.58048). Distinct pairing with embrace (Ref. 205). Born at 97-120 cm TL (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. (Ref. 247)

IUCN Red List Status (Ref. 130435)

  Endangered (EN) (A2d); Date assessed: 05 November 2018

CITES


Threat to humans

  Traumatogenic (Ref. 13574)





Human uses

Fisheries: minor commercial
FAO - Fisheries: landings, species profile; Publication: search | FishSource | Sea Around Us

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Fisheries: landings, species profile; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 8.9 - 26.1, mean 18 °C (based on 1232 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7813   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00405 - 0.02151), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.0 se; based on diet studies.
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (Fec=2).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Climate Vulnerability (Ref. 125649):  High vulnerability (63 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 6.65 [1.91, 34.35] mg/100g; Iron = 0.692 [0.170, 2.038] mg/100g; Protein = 20.6 [18.2, 22.8] %; Omega3 = 0.407 [0.162, 0.985] g/100g; Selenium = 41.2 [12.8, 118.0] μg/100g; VitaminA = 6.83 [2.21, 22.76] μg/100g; Zinc = 0.328 [0.165, 0.612] mg/100g (wet weight);