Classification / Names
आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa
इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436); hawaiiensis: Named for its type locality, Hawaii.
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
समुद्री बेनथोपिलाजिक. Tropical
Eastern Central Pacific: Hawaii.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 101 cm TL पुल्लिंग / अलिंग; (Ref. 126986)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
This large species of Squalus of the ‘mitsukurii group’ is distinguished by the following set of characters: body is relatively slender, trunk height 8.7-12.4% TL (mean 10.1% TL); snout angular and short to moderate in length, its mouth width 1.35-1.60 (1.48) times horizontal prenarial length and pre-oral length 1.92-2.06 (1.97) times the prenarial length; pre-first dorsal length 30.3-31.5 (30.2)% TL; pre-second dorsal length 63.6-67.0 (65.5)% TL; interdorsal space 26.7-30.0 (28.6)% TL; pelvic-caudal space 25.2-29.3 (27.1)% TL; dorsal fins relatively small and upright; first dorsal fin length 11.4-12.8 (12.2)% TL, height 6.5-7.8 (7.3)% TL, with inner margin length 4.9-5.7 (5.4)%% TL; second dorsal fin length 10.6-11.7 (11.1)% TL, its height 4.0-4.6 (4.4)% TL and inner margin length 4.3-4.9 (4.6)% TL; first dorsal fin spine length 46.6-64.6 (55.6)% of first dorsal fin height; second dorsal spine length 104.5-114.5 (109.0)% of second dorsal fin height; caudal bar triangular, extending from caudal fork nearly to the anterior edge of the lower caudal, distinct upper caudal blotch and fringe present in juveniles, upper caudal blotch diffuse in adults but extending to posterior margin of the upper caudal fin, the upper and lower caudal fins white tipped; flank denticles tricuspid; teeth similar in appearance in upper and lower jaws, numbers ranging from 26-28 in the upper jaw and 23 in the lower; monospondylous centra 41-42, precaudal centra 85-89, total centra 112-116 (Ref. 126986).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा
Sarmento-Soares, L.M. and R.F. Martins-Pinheiro, 2020. A reappraisal of phylogenetic relationships among auchenipterid catfishes of the subfamily Centromochlinae and diagnosis of its genera (Teleostei: Siluriformes). Proc. Acad. Natural Sci. Philadelphia 167(1):85-146. (Ref. 126986)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
मात्स्यिकी: बाबत संभावित दिलचस्पी
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00165 - 0.00730), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.4 ±0.4 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (61 of 100).
