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Bathyraja maculata Ishiyama and Ishihara, 1977
WHITE-BLOTCHED SKATE
Whitebloched Skate

Life   Vertebrata   Fish   Rajidae   Bathyraja


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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Bathyraja&speciesname=maculata ---> http://www.fishbase.org/summary/Bathyraja-maculata.html
http://www.fishbase.org/summary/Bathyraja-maculata.html ---> https://www.fishbase.se/summary/Bathyraja-maculata.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Bathyraja maculata Ishiyama & Ishihara , 1977

White-blotched skate 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.
Bathyraja maculata   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Bathyraja maculata (White-blotched skate) Bathyraja maculata
Picture by Orlov, A.

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

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335 ) ;   maculata: Name from the Latin adjective 'maculata' meaning blotched, referring to the color markings on the dorsal side of the disc.

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

Marine; bathydemersal; depth range 70 - 1193 m (Ref. 50610 ).   Deep-water; 59°N - 51°N

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

Northwest Pacific: known from the type locality, the Bering Sea.

Length at first maturity / Size / Weight / Age

Maturity: L m   ? , range 94 - 101 cm
Max length : 115 cm TL male/unsexed; (Ref. 56527 ); max. published weight: 8.5 kg (Ref. 56527 )

Short description Morphology | Morphometrics

This species is distinguished from its congeners Bathyraja in having a white blotches of different sizes on the dorsal surface of the disk, lateral folds of tail are broad; clasper has a large pseudosiphon; dense silky fibers covering egg capsule (Ref. 75535 ).

Biology     Glossary (e.g. epibenthic)

Holotype taken from a depth of about 450 m (Ref. 26282 ). Maximum depth based on report for Bering Sea and Aleutian Islands (Ref. 80796 ). 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 ). Egg capsules are 10.19 cm long and 6.28 cm wide (Ref. 41249 ).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449 ). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205 ).

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: 27 July 2015

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search ) | FishSource |

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Common names
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Age/Size
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Summary page | Point data | Common names | Photos

Internet sources

Aquatic Commons | BHL | Cloffa | BOLDSystems | 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 | Zoobank | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 1.3 - 3.8, mean 2 (based on 27 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00316 (0.00202 - 0.00494), b=3.12 (2.99 - 3.25), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.1   ±0.71 se; Based on food items. Resilience (Ref. 69278 ):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100). Vulnerability (Ref. 59153 ):  Very high vulnerability (81 of 100) .

Entered by McEachran, John Modified by Bailly, Nicolas Fish Forum
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Updated: 2019-10-21 07:26:47 gmt
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