klasifikasi / Names Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa

Ikan bertulang rawan (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
More on author: Lowe.

Environment: milieu / climate zone / depth range / distribution range Ekologi

laut batidemersal; kisaran kedalaman ? - 500 m. Deep-water; 33°N - 31°N

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Eastern Atlantic: endemic to Madeira; possibly Azores. Nominal records from western Africa and the Canary Islands could not be verified and are probably misidentifications.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 85.0 cm TL jantan/; (Ref. 2683); common length : 50.0 cm TL jantan/; (Ref. 2683)

deskripsi pendek Morfologi | Morfometrik

Duri punggung (Keseluruhan (total)): 0; Duri dubur 0; Sirip dubur lunak: 0. Upper surface wholly prickly, underside almost entirely prickly; orbital thorns separate, a regular row of 21-25 large thorns from nape to first dorsal fin; upper surface dark brown with a constant pattern of irregular light spots forming broad undulating transverse bands with narrower unspotted bands between, underside white, but grey on snout and broad dark margin to disc from behind midpoint of anterior margin, also blackish at tip of tail (Ref. 3167).

Feeds on all kinds of benthic animals (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

rujukan utama Upload your references | Acuan | Koordinator : McEachran, John | mitra

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)

Rentan, lihat daftar merah IUCN (VU) (D2); Date assessed: 11 December 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

Perikanan: komersial

FAO - Publication: search | FishSource | Sea Around Us

informasi lanjut

Negara-negara
Daerah-daerah FAO
Ecosystems
Kemunculan
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Nama-nama umum
Sinonim (persamaan)
metabolisme
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Fecundity
telur-telur
pekembangan telor

Umur / Saiz
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panjang-berat
panjang-panjang
ukuran frekuensi
Morfometrik
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Larva
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pemulihan
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profil budidaya air
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mitra
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Penglihatan / visi

Alat, peralatan

laporan khas

semak penyelenggaraan akuarium | semak helaian fakta spesis | semak helaian fakta aqulcalture

muat turun XML

ringkasan halaman | Point data | Nama-nama umum | fotos/gambar

Sumber internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00269 (0.00124 - 0.00582), b=3.26 (3.09 - 3.43), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.37 se; based on food items.

Daya lenting (Ref. 120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).

kategori harga (Ref. 80766): Medium.

Raja maderensis Lowe, 1838