Argentina country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 58839.
National Checklist: Argentina
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/ar.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Classification / Names

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Squaliformes (Bramble, sleeper and dogfish sharks) > Squalidae (Dogfish sharks)
आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Катран (=акула колючая обыкновенная), Aiguillat commun, Mielga, ... more

Issue
Squalus suckleyi (Girard, 1855) has been resurected by Ebert et al. (2010: Ref. 85328) in the North Pacific where it replaces Squalus acanthias Linnaeus, 1758.

Main reference

Compagno, L.J.V. 1984. (Ref. 247)
संदर्भ | Biblio | संयोजक : Compagno, Leonard J.V. | सहयोगीयो

आकार / वज़न / Age

Max length : 160 cm TL पुल्लिंग / अलिंग; (Ref. 247); common length : 100.0 cm TL पुल्लिंग / अलिंग; (Ref. ); अधिकतम प्रकाशित वज़न: 9.1 kg (Ref. 11389); अधिकतम सूचित उम्र: 75 वर्षो (Ref. 39247)

Length at first maturity
L_m 81.4, range 69 - 100 cm

पर्यावरण

; समुद्री; खारा बेनथोपिलाजिक; औशिनोड़िरोमस (Ref. 51243); गहराई सीमा 0 - 1460 m (Ref. 26346), usually 50 - 300 m (Ref. 43939)

जलवायु / सीमा

Temperate; 7°C - 15°C (Ref. 247), preferred 16°C (Ref. 107945); 81°N - 57°S, 82°W - 171°W (Ref. 247)

वितरण

Western Atlantic: Greenland to Argentina; Eastern Atlantic: Iceland and and the Barents Sea to Western Sahara and the Canary Islands; Angola to South Africa. Indo-Pacific; the Mediterranean and Black Seas (Ref. 247) Reports from off New Guinea are doubtful (Ref. 6871). All records from North Pacific refer to Squalus suckleyi (Girard, 1855) (Ref. 85328). Appendix II (northern hemisphere populations) of the Bonn Convention (2009).
देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Short description

पृष्ठीय रीढ़ (सम्पूर्ण): 2; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 0; गुदा कांटा 0; ऐनल सौफट रेज़: 0; जानवरों की रीड़ का जोड़: 101 - 109. This moderately sized species is distinguished by the following set of characters: very slender body, abdomen width 7.2-9.2% TL; narrow head, width at mouth 7.9-10.2% TL; mouth width 1.7-2.2 times its horizontal prenarial length; moderately long snout, preoral length 2.2-2.5 times horizontal prenarial length, 8.5-9.8% TL; single-lobed anterior nasal flap; small dorsal fins, raked, first dorsal-fin height 1.1-1.3 times its inner margin length, second dorsal-fin height 0.7-0.9 times its inner margin length; origin of first dorsal-fin located just posterior to pectoral-fin free rear tips; exposed bases of dorsal-fin spines relatively narrow, 0.4-0.7% TL; short spine of first dorsal fin, exposed length 1.7-2.7% TL; pectoral-fin anterior margin 1.9-3.1 times its inner margin length; preventral caudal margin 1.9-2.6 times inner margin of pelvic fin; pale caudal fin with poorly demarcated, whitish margin, blackish caudal blotch at the apex of upper lobe, anterior margins of both lobes whitish in juveniles; dark caudal bar absent; dorsal and lateral surfaces of body bluish grey with an irregular array of moderately-large white spots; whitish ventrally; flank denticles tricuspid; monospondylous centra 41-45, precaudal centra 74-79, total centra 100-105 (Ref. 58446).

Possibly the most abundant living shark (Ref. 247). An inshore and offshore dogfish of the continental and insular shelf and upper slopes (Ref. 247, 11230). Usually near the bottom, but also in midwater and at the surface (Ref. 26346); occurs mainly between 10-200 m depth (Ref. 247). Males and gravid females usually found shallower than non-gravid females. Tolerates brackish water, often found in enclosed bays and estuaries. Reported to enter freshwater (Ref. 11980) but cannot survive there for more than a few hours (Ref. 247). Highly migratory species, used to be observed in large foraging schools with up to thousands of individuals, usually segregated by size and /or sex, with schools of large gravid females preferentially targeted by fisheries. Their latitudinal (north-south) and depth-related (nearshore-offshore) movements appear to be correlated with their preferred temperature (Ref. 247). Tagging experiments showed that populations in the northern North Sea and northwest Scotland made winter migrations to off Norway and summer migrations to Scotland (Ref. 88880, 88881). Transoceanic migrations recorded, but rare (Ref. 88864). Longevity in the northern Atlantic is about 35-50 years (Ref. 88882), but most live only 20-24 years (Ref. 88187). Growth is slow. At sexual maturity, males are 60-70 cm long, females 75-90 cm (Ref. 35388). Gestation period is 2 years (Ref. 36731). Ovoviviparous (Ref. 205). Feeds on a diversity of prey, ranging from comb jellyfish, squid, mackarel and herring to a wide array of benthic fishes, shrimps, crabs and even sea cucumbers (Ref. 93252). The only species of horned sharks that can inflict toxins with its tail. Detects weak electric fields generated by potential prey (Ref. 10311). Utilized for human consumption, liver oil, vitamins, sand paper, leather, fertilizer, etc. (Ref. 247, 27436). Eaten fried, broiled, and baked (Ref. 9988).