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Hemitriakis complicofasciata Takahashi & Nakaya, 2004

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Image of Hemitriakis complicofasciata
No image available for this species;
drawing shows typical species in Triakidae.

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Пластиножаберные (акулы и скаты) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Galeorhininae
Etymology: Hemitriakis: hemi-, from hemisys (Gr.), half, being a genus that Herre believed was “most closely related” to Triakis. (See ETYFish);  complicofasciata: complico (L.), complicated; fasciata (L.), striped, referring to complex body color pattern of young specimens. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range экология

морской донно-пелагический. Temperate

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Northwest Pacific: Ryukyu Is. (Japan) and Taiwan.

Size / Вес / Возраст

Maturity: Lm ?  range ? - 80.5 cm
Max length : 81.0 cm TL самец/пол неопределен; (Ref. 55581); 88.0 cm TL (female)

Краткое описание определительные ключи | морфология | морфометрия

This species is distinguished by the following characters: monospondylous vertebrae 46-52; precaudal total vertebrae 124-131; posterior nasal flap developed; first dorsal fin origin anterior to free rear tips of pectoral fin; snout length short with snout tip to oral length < 1.8 times internarial width; embryos and juveniles with dark complicated lines and rings; no accessory cartilage at symphysial part of upper jaw (Ref. 55581).

биология     глоссарий (например epibenthic)

Claspers of most males are almost fully elongate and calcified at about 76 cm TL; while females are mature and pregnant at about 76 cm TL. Embryos less than 22 cm TL with only external yolk, most that are more than 22 cm TL with substantial internal yolk. Litter size from 5-8 with 2-4 embryos per uterus. Five pregnant specimens contained a total of 29 embryos (9 females and 20 males) and each embryo were covered separately by embryonic membrane (Ref. 55581).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор : Compagno, Leonard J.V. | соавторы

Takahashi, M. and K. Nakaya, 2004. Hemitriakis complicofasciata, a new whitefin topshark (Carcharhiniformes; Triakidae) from Japan. Ichth. Research 51(3):248-255. (Ref. 55581)

Статус Красного Списка МСОП (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless





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ресурсы в Интернет

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00183 - 0.00992), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.5 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref. 120179):  низкий, минимальное время удвоения популяции 4.5-14 лет (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153):  High vulnerability (55 of 100).