Prionace glauca, Blue shark : fisheries, gamefish
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Prionace glauca (Linnaeus, 1758)

Blue shark
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Prionace glauca   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchi (squali e razze) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Prionace: prion (Gr.), saw; akis (Gr.), point or barb, referring to serrated (saw-like) cusps on teeth of upper jaw. (See ETYFish);  glauca: Latin for bluish green or gray (i.e., sea-colored), referring to its color (blue above, whitish below). (See ETYFish).
More on author: Linnaeus.

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

; marino; salmastro; oceanodromo (Ref. 51243); distribuzione batimetrica 1 - 1000 m (Ref. 89422), usually 1 - 220 m (Ref. 55193). Subtropical; 7°C - 21°C (Ref. 244); 71°N - 55°S, 180°W - 180°E

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Circumglobal in temperate and tropical waters. Western Atlantic: Newfoundland, Canada to Argentina. Central Atlantic. Eastern Atlantic: Norway to South Africa, including the Mediterranean. Indo-West Pacific: East Africa to Indonesia, Japan, Australia, New Caledonia, and New Zealand. Eastern Pacific: Gulf of Alaska to Chile. Probably the widest ranging chondrichthyian. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Length at first maturity / Size / Peso / Age

Maturity: Lm 199.1, range 170 - 221 cm
Max length : 400 cm TL maschio/sesso non determinato; (Ref. 35388); common length : 335 cm TL maschio/sesso non determinato; (Ref. 5217); peso massimo pubblicato: 205.9 kg (Ref. 40637); Età massima riportata: 20 anni (Ref. 27347)

Short description Morfologia | Morfometria

Spine dorsali (totale): 0; Raggi dorsali molli (totale): 0; Spine anali 0; Raggi anali molli: 0. A slim, graceful blue shark with a long, conical snout, large eyes, and curved triangular upper teeth with saw edges; pectorals long and narrow; no interdorsal ridge (Ref. 5578). Dark blue dorsally, bright blue on the sides, white ventrally (Ref. 5578). Tips of pectoral fins and anal fin dusky (Ref. 9997). The first case of diprosopus tetrophthalmus (cranofacial duplication) in a foetus of this species was reported from South Atlantic (Ref. 119190).

Biologia     Glossario (es. epibenthic)

Oceanic, but may be found close inshore where the continental shelf is narrow (Ref. 6871, 58302). Usually found to at least 150 m (Ref. 26938). Reported from estuaries (Ref. 26340). Epipelagic, occasionally occurs in littoral areas (Ref. 58302). Feeds on fishes (herring, silver hake, white hake, red hake, cod, haddock, pollock, mackerel, butterfish, sea raven and flounders (Ref. 5951)), small sharks, squids, pelagic red crabs, cetacean carrion, occasional sea birds and garbage (Ref. 5578). Viviparous (Ref. 50449). Sexual dimorphism occurs in skin thickness of maturing and adult females (Ref. 49562). May travel considerable distances (one specimen tagged in New Zealand was recaptured 1,200 km off the coast of Chile) (Ref. 26346). Potentially dangerous to humans (Ref. 6871, 13513). Marketed fresh, dried or salted, and frozen; meat utilized for consumption, hides for leather and fins for soup (Ref. 9987). Sexually mature at 250 cm long and 4-5 years old. The female gives birth up to 80 young measuring 40 cm long, gestation lasts almost a year (Ref. 35388). Produces from 4 to 135 young a litter (Ref. 26938).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Distinct pairing with embrace (Ref. 205). Viviparous (Ref. 26281), placental (Ref. 50449); 4-63 young in a litter (Ref. 9997); 4-135 (usually 15-30) pups (Ref.58048), about 35-44 cm at birth. Gestation period ranges from 9 to 12 months (Ref. 244). Sexual dimorphism is evident in skin thickness of maturing and adult females (Ref. 49562). Females have thicker skin layer than males of the same size (Ref. 49562).

Main reference Upload your references | Bibliografia | Coordinatore : Compagno, Leonard J.V. | Collaboratori

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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN Red List Status (Ref. 125652)

  Near Threatened (NT) (A2bd); Date assessed: 06 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 4690)





Human uses

Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
FAO - pesca: landings, species profile; Publication: search | FIRMS - Stock assessments | FishSource | Sea Around Us

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione
Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Spawning aggregation
Fecundity
Uova
Egg development
Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Frequenze alleliche
Ereditarietà
Malattie
Elaborazione
Nutrients
Mass conversion
Collaboratori
Immagini
Stamps, Coins Misc.
Suoni
Ciguatera
Velocità
Modalità di nuoto
Area branchiale
Otoliths
Cervelli
Vista

Strumenti

Special reports

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Fonti Internet

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

Estimates based on models

Preferred temperature (Ref. 115969): 5.9 - 25.2, mean 14.8 °C (based on 1945 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00377 - 0.00554), b=3.09 (3.04 - 3.14), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.4   ±0.2 se; based on diet studies.
Generation time: 8.5 (6.9 - 10.0) years. Estimated as median ln(3)/K based on 22 growth studies.
Resilienza (Ref. 120179):  Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (rm=0.031; K=0.16; tm=6; tmax=20; Fec=4-135).
Prior r = 0.06, 95% CL = 0.04 - 0.10, Based on 6 stock assessments.
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (77 of 100) .
Climate Vulnerability (Ref. 125649):  High vulnerability (57 of 100) .
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 15.6 [2.0, 61.9] mg/100g ; Iron = 1.32 [0.39, 3.95] mg/100g ; Protein = 20.6 [18.1, 22.9] % ; Omega3 = 0.623 [0.204, 1.723] g/100g ; Selenium = 13.2 [3.2, 40.6] μg/100g ; VitaminA = 9.55 [2.86, 34.00] μg/100g ; Zinc = 0.317 [0.142, 1.080] mg/100g (wet weight); based on nutrient studies.