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: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).

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

laut batidemersal; kisaran kedalaman 102 - 1098 m (Ref. 106604). Deep-water; 27°S - 40°S

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

Southeast Atlantic: Lüderitz, Namibia to off Cape Agulhas, South Africa.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 65.1 cm TL jantan/; (Ref. 106604)

deskripsi pendek Morfologi | Morfometrik

Small skate with a very short, obtusely pointed snout, large, close-set, bulging eyes and a thick disc; tail thick and much longer than body; conspicuous light thorns make disc and tail very rough (Ref. 5578). Light grey to brownish above, with or without darker spots; young with distinctive white-barred pattern; underside white (Ref. 5578).

Found on the upper slope (Ref. 5578). Feed on mysids, lightfishes, and polychaetes (Ref. 5578). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Caught by hake trawlers (Ref. 5578).

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

Oviparous, 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)

kurang bimbang (LC) ; Date assessed: 24 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

Negara-negara
Daerah-daerah FAO
Ecosystems
Kemunculan
Introduksi
Stocks
Ekologi
Makanan
Bahan makanan
Konsumsi makanan
Jatah

Nama-nama umum
Sinonim (persamaan)
metabolisme
Pemangsa
Ekotoksikologi
Reproduksi, perkembang biakan
Kematangan
Pemijahan
Spawning aggregation
Fecundity
telur-telur
pekembangan telor

Umur / Saiz
Pertumbuhan
panjang-berat
panjang-panjang
ukuran frekuensi
Morfometrik
Morfologi
Larva
Dinamika larva
pemulihan
Kelimpahan
BRUVS

Acuan
Budidaya air
profil budidaya air
Strain
Genetika
Electrophoreses
Diturunkan
Penyakit-penyakit
Pengolahan
Nutrients
Mass conversion

mitra
Gambar
Stamps, Coins Misc.
Suara-suara
Ciguatera
Kecepatan
Tipe renang
Area insang
Otoliths
Otak
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

Preferred temperature (Ref. 123201): 6.5 - 13.8, mean 8 °C (based on 11 cells).

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

Bayesian length-weight: a=0.00302 (0.00173 - 0.00526), b=3.24 (3.09 - 3.39), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.53 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 (46 of 100).

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