Цельноголовые (химеры) (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Chimaera: Named for the mythological creature composed of parts of multiple animals, referring to their odd mix of characteristics (See ETYFish); willwatchi: In honor of the “hard-working” fishers onboard the Sealord Corporation fishing vessel Will Watch, from which holotype was collected (See ETYFish).
Eponymy: Not a true eponym as this is named after a ship’s company – the ‘hard-working’ fishers on board the Sealord Corporation fishing vessel ‘Will Watch’, from which the type was collected. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
экология
морской батидемерсальный; пределы глубины 89 - 1365 m (Ref. 116312). Tropical; 34°S - 40°S, 41°E - 59°E (Ref. 116312)
распространение
страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri
Southwestern Indian Ocean: Southwest Indian Ocean Ridge, northern portion of the Madagascar Ridge, and Walters Shoal.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 83.4 cm TL самец/пол неопределен; (Ref. 116312); 97.1 cm TL (female)
This species is collected by midwater and bottom trawls. Maximum length for females is 64.5 cm BDL, 97.1+ cm TL, and for males 51.9 cm BDL, 83.4+ cm TL. The smallest free swimming individual is 11.8 cm BDL, 25.8 cm TL. Females are mature at 51.9 cm BDL, 76.7 cm TL, while males mature at 36.9 cm BDL, 63.8 cm TL (Ref. 116312).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Clerkin, P.J., Ebert, D.A. and J.M. Kemper, 2017. New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean. Zootaxa 4312(1):1-37. (Ref. 116312)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-2)
Угроза для людей
Harmless
Использование человеком
рыболовство:
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инструменты
Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00137 - 0.00798), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Deepwater species with few large eggs.).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).