New Zealand country information

Common names: Blue shark, Mango-pounamu, Pounamu
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref:
Importance: commercial | Ref: Armitage, R.O., D.A. Payne, G.J. Lockley, H.M. Currie, R.L. Colban, B.G. Lamb and L.J. Paul (eds.), 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Occurs in offshore waters south to about Otago (Ref. 9258); Chathams Island (Ref. 45493); Snares Shelf and possibly to the Auckland Islands (Ref. 89422). Recorded from bottom trawls off the east coast of South Island (Ref. 58461). Taken in significant quanties as a by-catch of the tuna longline fishery (Ref. 26346). Fins used for soups (Ref. 9258). Voucher specimen(s) held at the NMNZ (Ref. 5755). Also Ref. 244, 89423.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: https://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:

Classification / Names

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Акула синяя, Peau bleue, Tiburón azul, ... more

Main reference

Compagno, L.J.V. 1984. (Ref. 244)
संदर्भ | Biblio | संयोजक : Compagno, Leonard J.V. | सहयोगीयो

आकार / वज़न / Age

Max length : 400 cm TL पुल्लिंग / अलिंग; (Ref. 35388); common length : 335 cm TL पुल्लिंग / अलिंग; (Ref. 5217); अधिकतम प्रकाशित वज़न: 205.9 kg (Ref. 40637); अधिकतम सूचित उम्र: 20 वर्षो (Ref. 27347)

Length at first maturity
L_m 206.2, range 170 - 221 cm

पर्यावरण

; समुद्री; खारा; औशिनोड़िरोमस (Ref. 51243); गहराई सीमा 1 - 1000 m (Ref. 89422), usually 80 - 220 m (Ref. 55193)

जलवायु / सीमा

Subtropical; 7°C - 21°C (Ref. 244), preferred 25°C (Ref. 107945); 66°N - 55°S, 180°W - 180°E

वितरण

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).
देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Short description

पृष्ठीय रीढ़ (सम्पूर्ण): 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 0; गुदा कांटा 0; ऐनल सौफट रेज़: 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).

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. 115185)

Near Threatened (NT)

Threat to humans

Traumatogenic (Ref. 4690)

Human uses

मात्स्यिकी: लघु वाणिज्य; आखेट मत्स्य: हां

अधिक जानकारी

देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
Stocks
पारिस्थितिकी
आहार
खाद्य पदार्थ
आहार खपत
खोराक

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Fecundity
अंडे
Egg development

Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत

संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Mass conversion

सहयोगीयो
तस्वीरे
Stamps, Coins
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

Special reports

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Summary page | Point data | आम नाम | Photos

इंटरनेट स्रोत

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.4 ±0.2 se; Based on diet studies.

लौटाव (Ref. 69278)
बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (rm=0.031; K=0.16; tm=6; tmax=20; Fec=4-135)

Vulnerability (Ref. 59153)
Very high vulnerability (77 of 100)

Price category (Ref. 80766)
Medium

Prionace glauca (Linnaeus, 1758)