Пластиножаберные (акулы и скаты) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Trygonorrhinidae (Banjo rays, Fiddler rays)
Etymology: Trygonorrhina: Greek, trygon = a sting ray + Greek, rhinos = nose (Ref. 45335).
More on authors: Müller & Henle.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
морской демерсальный; пределы глубины 0 - 100 m (Ref. 114953). Subtropical; 28°S - 38°S, 149°E - 155°E (Ref. 114953)
Southwest Pacific: endemic to eastern Australia.
Размер / Вес / Возраст
половая зрелость: Lm ?  range ? - ? cm
Max length : 120 cm TL самец/пол неопределен; (Ref. 114953); наибольший вес (опубликованные данные): 6.7 kg (Ref. 6870)
Краткое описание
определительные ключи | морфология | морфометрия
This large shovelnose ray is distinguished by the following characters: suboval disc, short and broadly rounded snout with nostrils partly covered with a large nasal curtain; sharp thorns present on mid-line of disc and shoulders; behind interorbital space is an ornate pattern of dark-edged bands with distinct triangular or diamond-shaped marking (Ref. 114953).
Body shape (shape guide): other; Cross section: flattened.
A benthic species and an active scavenger which will enter fish traps and often becoming ensnared by the disc (Ref. 6871). Found also on sandy bottoms and seagrass areas, often near rocky reefs (Ref. 12951). Mainly feeds on crabs and shrimps (Ref. 114953). Ovoviviparous with golden egg capsules, each with up to 3 embryos (Ref. 12951). Produces up to 2-3 pups. Length size seldom exceeds 110 cm TL; birth size at ca. 25 cm TL (Ref. 114953). The flesh is good to eat, although only a small quantity is sold in seafood outlets (Ref. 6871).
Жизненный цикл и брачное поведение
половая зрелость | размножение | нерест | икра | Плодовитость | личинки
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref. 114953)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
рыболовство: не имеет хозяйственного значения; объект спортивного рыболовства: да; аквариум: общественные аквариумы
дополнительная информация
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Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка 82804) |
PD50 = 0.7539 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00724 (0.00272 - 0.01929), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Трофический уровень (ссылка 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
устойчивость к внешним воздействиям (ссылка 120179) |
низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100). |
Уязвимость рыбной ловли (Ref. 59153) |
High vulnerability (64 of 100). 🛈 |
Категория цены (Ref. 80766) |
Medium.
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Питательные вещества (Ref. 124155) |
Calcium = 21.8 [4.2, 100.2] mg/100g; Iron = 0.68 [0.18, 1.97] mg/100g; Protein = 19.3 [17.2, 21.2] %; Omega3 = 0.211 [0.096, 0.452] g/100g; Selenium = 25.1 [7.4, 71.4] μg/100g; VitaminA = 7.73 [2.65, 21.92] μg/100g; Zinc = 0.561 [0.278, 1.008] mg/100g (wet weight); |