Raja polystigma, Speckled ray

Raja polystigma Regan, 1923

Speckled ray
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Raja polystigma   AquaMaps   Data sources: GBIF OBIS
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Image of Raja polystigma (Speckled ray)
Raja polystigma
Picture by Ilkyaz, A.T.

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: Regan.

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

; laut dasar (demersal); kisaran kedalaman 100 - 400 m (Ref. 3167).   Subtropical

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

Northeast Atlantic: known only from the western Mediterranean, more common along the African coasts.

Size / Weight / umur

Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL jantan/; (Ref. 3167)

Biologi     Daftar kata (contoh epibenthic)

Found mainly on soft bottoms (Ref. 3167). Feed mainly on crustaceans and bony fishes depending on the sex, size and also partly with the season (Ref. 3167). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). About 20-62 eggs are laid by an individual in a year (Ref. 41314).

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). Ripe females occurring mostly in the winter and deposit 20 to 62 egg-cases per year depending on size (Ref. 3167). Distinct pairing with embrace. Y oung may tend to follow large objects, such as their mother (Ref. 205).

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. 123251)

  kurang bimbang (LC) ; Date assessed: 17 December 2014

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

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
Frekuensi alel
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

muat turun XML

Sumber internet

Aquatic Commons | BHL | Cloffa | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genom, Nukleotida | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Pangkalan data nasional | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 13.1 - 15.1, mean 14 °C (based on 40 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00170 (0.00095 - 0.00303), b=3.28 (3.13 - 3.43), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.5 se; based on diet studies.
Generation time: 10.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Daya lenting (Ref. 120179):  Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec=20).
keancaman (Ref. 59153):  High vulnerability (62 of 100) .
Nutrients (Ref. 124155):  Calcium = 40.9 [6.3, 141.4] mg/100g ; Iron = 0.94 [0.25, 2.38] mg/100g ; Protein = 17.4 [14.4, 20.0] % ; Omega3 = 0.638 [0.235, 1.810] g/100g ; Selenium = 22.7 [6.5, 67.0] μg/100g ; VitaminA = 13.5 [5.0, 35.1] μg/100g ; Zinc = 0.695 [0.341, 1.567] mg/100g (wet weight);