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Squaliformes (Sleeper and dogfish sharks) >
Centrophoridae (Gulper sharks)
Etymology: Centrophorus: centr[um] (L.), prickle or sharp point; phorus, from phoreus (Gr.), bearer or carrier, referring to grooved spines on dorsal fins. (See ETYFish); zeehaani: In honor of the commercial vessel Zeehaan, from which first specimens were collected from Tasmanian waters in 1979. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
экология
морской батидемерсальный; пределы глубины 208 - 701 m (Ref. 76933), usually 400 - ? m (Ref. 76933). Subtropical
Indian and Pacific oceans of Australia (Ref. 76933) and in India (Ref. 118627).
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 91.0 cm TL самец/пол неопределен; (Ref. 76933); 102.7 cm TL (female)
Краткое описание
определительные ключи | морфология | морфометрия
This moderate-sized species has the following set of adult characters: length of pre-second dorsal 62.8-64.8% TL, 8.3-9.8 times dorsal-caudal space; length of pre-first dorsal 28.3-30.7% TL; interdorsal space 20.0-23.7% TL, 3.0-3.5 times the dorsal-caudal space; dorsal-caudal space 6.4-7.9% TL, 4.2-4.7 in pectoral-pelvic space; long and moderately robust head, its length 23.3-24.3% TL, 2.5-2.9 times mouth width and its width 11.8-13.1% TL, 4.9-5.4 in pre-second dorsal length, width at anterior of nostrils 5.5-6.3% TL; moderately long snout, its pre-oral length 9.4-10.1% TL, 1.6-1.9 times head height at anterior of mouth, 1.0-1.2 times mouth width; horizontal preorbital length 5.6-6.3% TL; horizontal prenarial length 3.4-4.2% TL); large mouth, its width 8.3-9.6% TL; moderately sized pectoral fin, its anterior margin 11.4-12.6% TL, 2.3-2.8 times base length; large caudal fin, its dorsal caudal margin 17.9-20.8% TL; 2.6-2.9 times dorsal-caudal space; moderately-sized first dorsal fin, its height 6.0-7.0% TL, with a relatively robust spine, its base width 0.9-1.2% TL; dorsal fins of juveniles have a distinct blackish margin extending from mid-anterior margin to near free rear tip while in adults with a less distinct, but obvious, dark margin; adults of both sexes with upper teeth upright, only slightly oblique laterally, different shape, and much smaller than lower teeth; juveniles with more oblique cusps, but not strongly oblique; 37-45/30-33 tooth row count (based on non-type skeletal specimens, n=8); flank denticles are flat, block-like, not overlapping, scalloped edges; 114-117 (mean 115.4) total vertebral centra, 54-56 (55.2) monospondylous precaudal centra; 28-31 (29.4) diplospondylous precaudal centra; 84-86 (84.7) precaudal centra; 31 (30-32) diplospondylous caudal centra (Ref. 76933).
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
White, W.T., D.A. Ebert and L.J.V. Compagno, 2008. Description of two new species of gulper sharks, genus Centrophorus (Chondrichthyes: Squaliformes: Centrophoridae) from Australia. pp. 1-21. In P.R. Last, W.T. White and J.J. Pogonoski (eds). Descriptions of new Australian chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. 365 p. (Ref. 76933)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Preferred temperature (Ref.
123201): 5.8 - 11.8, mean 10.3 °C (based on 18 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00121 - 0.00572), b=3.18 (2.99 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.3 ±0.3 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): очень низкий, минимальное время удвоения популяции более 14 лет (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (62 of 100).
