(كوسه ها و سپرماهيان) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Eponymy: Dr Johannes Lijdius Catharinus Pompe van Meerdervoort (1829–1908) was a Dutch physician who qualified at Utrecht and became a naval surgeon (1849). [...] (Ref. 128868), visit book page.
More on author: Bleeker.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 70 - 90 m (Ref. 10932). Tropical
Western Pacific: Shizuoka Prefecture, Japan to the East China Sea as far south as the northernmost parts of the Okinawa Trough, and the Sea of Genkai (Ref. 10932). Reported from Taiwan (Ref. 12711), China and the Philippines (Ref. 8630).
اندازه / وزن / سن
بلوغ: Lm ? range ? - ? cm
Max length : 37.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 10932); 37.0 cm TL (female)
Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 3.5-4.8 cm long and 2.5-3.0 cm wide (Ref. 41249, 41298).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
دمای ترجیحی (مرجع
123201): 16 - 23.2, mean 21.8 °C (based on 14 cells).
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
سطح تروفیک (مرجع
69278): 3.9 ±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): Low to moderate vulnerability (27 of 100).
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