Prionace glauca   (Linnaeus, 1758)

Blue shark
Catalog of Fishes (gen., sp.) | ITIS | CoL
Classification
Elasmobranchii | Carcharhiniformes | Carcharhinidae
Synonyms
Common names
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AquaMaps     Data sources: GBIF OBIS
Main reference
Size / Weight / Age
Max length : 400 cm TL male/unsexed; (Ref. 35388); common length : 335 cm TL male/unsexed; (Ref. 5217); max. published weight: 205.9 kg (Ref. 40637); max. reported age: 20 years (Ref. 27347)
Environment
Pelagic-oceanic; oceanodromous (Ref. 51243); marine; depth range 1 - 350 m (Ref. 6871), usually 80 - 220 m (Ref. 55193)
Climate / Range
Subtropical; 7°C - 21°C (Ref. 244); 66°N - 55°S, 180°W - 180°E
Distribution
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).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal spines (total): 0; Anal spines: 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).
Biology
    Glossary (e.g. 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).
IUCN Red List Status (Ref. 57073)
Threat to humans
  Traumatogenic (Ref. 4690)
Human uses
Fisheries: minor commercial; gamefish: yes
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Ciguatera
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Estimation of some characteristics with mathematical models
Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (rm=0.031; K=0.16; tm=6; tmax=20; Fec=4-135)
Vulnerability (Ref. 59153)
Price category (Ref. 80766)
High to very high vulnerability (67 of 100)




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Page last modified by : elaxamana, 15 July 2009

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