Beringraja binoculata, Big skate : fisheries, aquarium

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Beringraja binoculata (Girard, 1855)

Big skate
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Beringraja binoculata   AquaMaps   Data sources: GBIF OBIS
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Image of Beringraja binoculata (Big skate)
Beringraja binoculata
Picture by Gotshall, D.W.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Beringraja: Named for the Bering Sea, though to be the origin of the two species in this genus.;  binoculata: From the Latin 'bi' meaning two and 'oculata' meaning eyed - referring to the arrangement of pigment on the pectoral fin bases (Ref. 6885).
More on author: Girard.

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

Marine; demersal; depth range 3 - 800 m (Ref. 6793), usually 3 - 110 m (Ref. 2850). Temperate; 61°N - 31°N, 165°W - 117°W (Ref. 55279)

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

North Pacific: Glubokaya Bay, Cape Navarin, and Stalemate Bank to Cedros Island, Baja California, Mexico.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 130 - ? cm
Max length : 244 cm TL male/unsexed; (Ref. 2850); common length : 180 cm TL male/unsexed; (Ref. 2850); max. published weight: 91.0 kg (Ref. 2850)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Dorsal fins well back on tail, small; caudal and anal fins absent; pectorals broad, attached to snout and incorporated with body; pelvic fins large, moderately concave on free margins (Ref. 6885). Posterior sides of tail with a small fleshy keel on either side (Ref. 6885).

Biology     Glossary (e.g. epibenthic)

Largest skate in North America (Ref. 2850). Feed on crustaceans and fishes (Ref. 6885). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Young hatch at 18-23 cm TL (Ref. 114953). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 22.8-30.5 cm long and 11.0-19.4 cm wide (Ref. 41249, 41300, 41357). Pectoral fins utilized for human consumption (Ref. 2850). Marketed fresh and frozen; eaten fried and baked (Ref. 9988).

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

Up to 7 embryos per egg case (Ref. 2850). 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. 130435)

  Least Concern (LC) ; Date assessed: 30 December 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquarium: public aquariums
FAO - Publication: search | FishSource |

More information

Countries
FAO areas
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | OceanAdapt | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 3.4 - 10.8, mean 6.8 °C (based on 512 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5156   [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).
Trophic level (Ref. 69278):  3.9   ±0.64 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 2.86 [0.39, 50.14] mg/100g; Iron = 0.195 [0.018, 2.275] mg/100g; Protein = 15.8 [14.0, 17.7] %; Omega3 = 0.665 [0.306, 1.433] g/100g; Selenium = 23.6 [8.8, 95.7] μg/100g; VitaminA = 3.53 [0.27, 43.61] μg/100g; Zinc = 0.277 [0.018, 3.087] mg/100g (wet weight); based on nutrient studies.