Ikan bertulang rawan (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
More on authors: Beebe & Tee-Van.
Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
laut dasar (demersal). Tropical; 0°N - 4°S, 83°W - 79°W (Ref. 114953)
Southeast Pacific: known from the type locality, San Helena Bay, Ecuador.
Size / Weight / umur
Kematangan: Lm ? range ? - ? cm
Max length : 39.0 cm TL jantan/; (Ref. 114953)
A demersal species with unknown depth distribution but presumably inhabits outer continental shelf and/or upper slope (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Length of specimen (39 cm TL) was based on a young male observed to have developed state of thorn patches on pectoral fins, and presumambly approaching maturity (Ref. 114953).
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
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 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00131 - 0.00604), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Acuan
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Daya lenting (Acuan
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
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