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Rajella bathyphila (Holt and Byrne, 1908)
DEEPWATER RAY
Life   Vertebrata   Fish   Rajidae   Rajella


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Rajella bathyphila (Holt & Byrne , 1908)

Deep-water ray Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Rajella bathyphila   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Rajella bathyphila (Deep-water ray) Rajella bathyphila
Picture by Treberg, J.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (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 Ecology

Marine; bathydemersal; depth range 600 - 2300 m (Ref. 117245 ), usually 1300 - 1400 m (Ref. 11284 ).   Boreal; 73°N - 37°N, 75°W - 5°W (Ref. 119696 )

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 65 - 75 cm
Max length : 90.0 cm TL male/unsexed; (Ref. 4426 )

Short description Morphology | Morphometrics

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 ).

Biology     Glossary (e.g. epibenthic)

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 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

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. 120744 )

  Least Concern (LC)  ; Date assessed: 01 December 2008

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search ) | FishSource |

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Summary page | Point data | Common names | Photos

Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 3.4 - 6.6, mean 5.4 (based on 13 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00562 (0.00271 - 0.01168), b=3.13 (2.95 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.7   ±0.6 se; Based on size and trophs of closest relatives Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100). Vulnerability (Ref. 59153 ):  High vulnerability (56 of 100) .

Entered by Binohlan, Crispina B. Modified by Jansalin, Jeremiah Glenn Fish Forum
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