Rajella barnardi, Bigthorn skate : fisheries

Rajella barnardi (Norman, 1935)

Bigthorn skate
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Rajella barnardi   AquaMaps   Data sources: GBIF OBIS
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Image of Rajella barnardi (Bigthorn skate)
No image available for this species;
drawing shows typical species in Rajidae.

klasifikasi / Nama 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).
Eponymy: Dr Keppel Harcourt Barnard (1887–1964) was a UK-born South African invertebrate zoologist particularly interested in marine crustaceans. [...] (Ref. 128868), visit book page.
More on author: Norman.

Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi Ekologi

laut batidemersal; kisaran kedalaman 102 - 1207 m (Ref. 106604). Deep-water

Penyebaran Wilayah | Daerah-daerah FAO | Ekosistem | Kemunculan | peta titik | Introduksi | Faunafri

Eastern Atlantic: off Mauritania to South Africa, probably throughout on the deep, middle and upper slope, even on outer shelf of Namibia and South Africa.

Ukuran / Berat / umur

Kematangan: Lm ?  range ? - ? cm
Max length : 75.0 cm TL jantan/; (Ref. 106604)

Biologi     Daftar kata (contoh epibenthic)

Found on the outer shelf and upper slope (Ref. 5578). Feeds on small crustaceans, squid and polychaete worms (Ref. 5578). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Taken by hake trawlers (Ref. 5578).

Siklus hidup dan perilaku kawin Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

rujukan utama Unggah referensi Anda | 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: Version 2025-2 (Global))

  kurang bimbang (LC) ; Date assessed: 31 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

Perikanan: bycatch
FAO - Publication: search | FishSource |

informasi lanjut

Ekologi trofik
Item makanan (mangsa)
Komposisi makanan
Konsumsi makanan
Ransum makanan
Pemangsa
Ekologi
Ekologi
Dinamika populasi
Parameter pertumbuhan
Maks. usia / ukuran
Panjang-berat rel.
Panjang-panjang rel.
ukuran frekuensi
Konversi massa
pemulihan
Kelimpahan
Siklus hidup
Reproduksi, perkembang biakan
Kematangan
Kedewasaan / insang rel.
Fekunditas
Pemijahan
Agregasi pemijahan
telur-telur
pekembangan telor
Larva
Dinamika larva
Penyebaran
Wilayah
Daerah-daerah FAO
Ekosistem
Kemunculan
Introduksi
BRUVS - Video
Anatomi
Area insang
Otak
Otolith
Fisiologi
Komposisi tubuh
Nutrisi
Konsumsi oksigen
Jenis renang
Kecepatan berenang
Pigmen visual
Suara ikan
Penyakit & Parasit
Toksisitas (LC50)
Genetika
genom
Genetika
Heterozigositas
Diturunkan
Keanekaragaman Genetik
Yang berhubungan dengan manusia
Sistem akuakultur
profil budidaya air
Strain
Kasus Ciguatera
Perangko, koin, dll.
Penjangkauan
mitra
Taksonomi
Nama-nama umum
Sinonim (persamaan)
Morfologi
Morfometrik
Gambar
Acuan
Acuan

Alat, peralatan

E-book | Penuntun lapangan | tanda freqkuenci panjang | peringkat sejarah hidup | peta titik | Tangkap-MSY |

laporan khas

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

muat turun XML

ringkasan halaman | Data titik | Nama-nama umum | fotos/gambar

Sumber internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Catatan Zoologi

Estimasi berdasarkan model

Indeks keanekaragaman filogenetik
(Acuan 82804) 		PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00331 (0.00199 - 0.00551), b=3.21 (3.07 - 3.35), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Tingkat Trofik
(Acuan 69278) 		3.5   ±0.43 se; based on food items.
Daya lenting
(Acuan 120179) 		Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).
Kerentanan Penangkapan Ikan
(Ref. 59153) 		Moderate to high vulnerability (53 of 100). 🛈
kategori harga
(Ref. 80766) 		Medium.
Nutrisi
(Ref. 124155) 		Calcium = 9.41 [1.70, 47.02] mg/100g; Iron = 0.362 [0.086, 1.105] mg/100g; Protein = 16.6 [13.7, 19.2] %; Omega3 = 0.615 [0.183, 2.451] g/100g; Selenium = 15 [4, 49] μg/100g; VitaminA = 7.58 [1.88, 30.92] μg/100g; Zinc = 0.34 [0.17, 0.63] mg/100g (wet weight);