(كوسه ها و سپرماهيان) (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.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 0 - 100 m (Ref. 114953). Subtropical; 28°S - 38°S, 149°E - 155°E (Ref. 114953)
Southwest Pacific: endemic to eastern Australia.
اندازه / وزن / سن
بلوغ: Lm ? range ? - ? cm
Max length : 120 cm TL جنس نر / بدون خواص جنسي; (Ref. 114953); بيشينه وزن گزارش شده: 6.7 kg (Ref. 6870)
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).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك; ماهي ها ي سرگرم كننده: بله; آكواريوم: آکواریوم عمومی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
دمای ترجیحی (مرجع
123201): 17.3 - 22.5, mean 20.7 °C (based on 18 cells).
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.7539 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00264 - 0.01991), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
سطح تروفیک (مرجع
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
جهندگی (مرجع
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Fec assumed to be <100).
آسیبپذیری ماهیگیری (Ref.
59153): High to very high vulnerability (72 of 100).
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مواد مغذی (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);
