Ikan bertulang rawan (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).
Eponymy: Thomas Frerichs was captain of the research vessel ‘Walther Herwig’ from which the holotype was collected. He was honoured for: “…his keen interest in deepsea catches, which assured us many precious discoveries”. (Ref. 128868), visit book page.
Taxonomic Remarks
Possibly a junior synonym of A. hyperborea due to strong morphological similarity according to Ebert & Stehmann (2013, Ref. 98315) and Weigmann (2016, Ref. 118749) (Ref. 118749).
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut batidemersal; kisaran kedalaman 600 - 2610 m (Ref. 114953). Deep-water; 30°S - 50°S, 78°W - 51°W (Ref. 114953)
Southwest Atlantic: off the mouth of Río de la Plata, Argentina (Ref. 26282, Ref. 114953) and Uruguay (Ref. 58839, Ref. 114953). Possibly Southeast Pacific: Chile (Ref. 27540, Ref. 114953).
Ukuran / Berat / umur
Kematangan: Lm ? range ? - ? cm
Max length : 91.0 cm TL jantan/; (Ref. 114953)
Found on continental slope and upper abyssal plain. Feeds on small benthic invertebrates, adults possibly piscivorous (Ref. 114953). Oviparous (Ref. 50449). Males reaches maturity by ca. 76 cm TL; young hatch at ca. 22 cm TL (Ref. 114953). Produces horny-shelled eggs (Ref. 205).
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (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)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan
82804): PD
50 = 0.5039 [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).
Tingkat Trofik (Acuan
69278): 4.2 ±0.3 se; based on size and trophs of closest relatives
Daya lenting (Acuan
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).
Kerentanan Penangkapan Ikan (Ref.
59153): High vulnerability (56 of 100).
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Nutrisi (Ref.
124155): Calcium = 7.32 [1.45, 37.52] mg/100g; Iron = 0.36 [0.08, 1.12] mg/100g; Protein = 16.7 [13.9, 19.2] %; Omega3 = 0.644 [0.204, 2.385] g/100g; Selenium = 16.5 [4.4, 50.5] μg/100g; VitaminA = 11.9 [2.8, 51.8] μg/100g; Zinc = 0.256 [0.125, 0.482] mg/100g (wet weight);
