Canada country information

Common names: Abyssal skate, Deep-water ray, Raie bathyale
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: In the Canadian Arctic, it was found in Baffin Bay (Ref. 117245).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ca.html
National Fisheries Authority: http://www.ncr.dfo.ca/home_e.htm
Occurrences: Occurrences Point map
Main Ref: Scott, W.B. and M.G. Scott, 1988
National Database:

Common names from other countries

Abyssal skate, Raie bathyale, Diepwaterrog, ... more

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (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 Οικολογία

Θαλασσινό(ά) βαθύβιο(ς); εύρος βάθους 600 - 2300 m (Ref. 117245), usually 1300 - 1400 m (Ref. 11284). Boreal; 3°C - 4°C (Ref. 117245); 73°N - 37°N, 75°W - 5°W (Ref. 119696)

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

North Atlantic and adjacent Arctic: ne USA to Rockall Trough (British Isles) (Ref. 114953).

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: L_m 70.0, range 65 - 75 cm
Max length : 90.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 4426)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Lower surface of the discus dark brown, darker in upper surface. Without definite markings, outer edges of pectoral and pelvic fins shading to darker (Ref. 6902).

Found on deeper continental slopes and probably abyssal plains, mainly deeper than 1,400 m (Ref. 3167). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). It is caught as by-catch in low numbers by deep trawl fisheries (Ref. 117245).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

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

Main reference Upload your references | Αναφορές | Συντονιστής : McEachran, John | Συνεργάτες

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)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 20 June 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Diet compositions
Food consumptions
Food rations
Θηρευτές

Ecology
Οικολογία
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Αναπαραγωγή
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Προνύμφες
Δυναμική προνυμφών

Distribution
Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
BRUVS - Videos

Anatomy
Gill areas
Εγκέφαλοι
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Κολυμβητικός τύπος
Swimming speeds
Visual pigment(s)
Ήχοι ψαριών
Diseases / Parasites
Toxicities (LC50s)

Genetics
Γενετική
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Προφίλ υδατοκαλλιεργειών
Στελέχοι
Ciguatera cases
Stamps, coins, misc.

Outreach
Συνεργάτες

Taxonomy
Κοινά ονόματα
Συνώνυμα
Μορφολογία
Μορφομετρία
Φωτογραφίες

References
Αναφορές

Εργαλεία

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Σημειακά στοιχεία | Κοινά ονόματα | Photos

Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 3.4 - 6.6, mean 5.4 (based on 13 cells).

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

Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Τροφικό Επίπεδο (Ref. 69278): 3.3 ±0.45 se; based on food items.

Ελαστικότητα (Ref. 120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): High vulnerability (56 of 100).

Rajella bathyphila (Holt & Byrne, 1908)