Canada country information

Common names: Jensen's skate, Raie à queue courte, Shorttail skate
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Ranges from Nunavut (Ref. 58426) to Nova Scotia (Ref. 4926), from Baffin Bay, Davis Strait, Ungava Bay, and Hudson Strait, also from Labrador shelf, Flemish Cap, Grand Banks and Scotian Shelf (Ref. 117245). Also Ref. 8630.
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: McAllister, D.E., 1990
National Database:

Common names from other countries

Raie à queue courte, Jensen's skate, Raie de Jensen, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

Пластиножаберные (акулы и скаты) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Amblyraja: Greek, amblys = darkness + Latin, raja, -ae = ray (Raja sp.) (Ref. 45335).

Issue
Provisionally retained as valid but treated as junior synonym of A. hyperborea by Weigmann (2016, Ref. 106604) due to strong morphological similarity and preliminary molecular data. Further work is needed to resolve this issue (Ref. 118749).

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

морской батидемерсальный; пределы глубины 165 - 3000 m (Ref. 114953). Deep-water; 67°N - 39°N, 72°W - 10°W (Ref. 114953)

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Western Atlantic: Nova Scotia, Canada to southern New England, USA; Eastern Atlantic: Iceland (Ref. 12462); North Atlantic: Labrador Sea and off British Isles (Ref. 114953)

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 74.3 cm TL самец/пол неопределен; (Ref. 4926); 85.0 cm TL (female)

Краткое описание определительные ключи | морфология | морфометрия

Lacks large thorns on anterior margins and mid posterior parts of pectorals and on either side of mid-dorsal ridge on the disc. Upper surface plain light brown, either grayish or of chocolate hue, darker along margins of fins. Lower surface brownish gray, grayish white or perhaps pure white (Ref. 6902).

Benthic (Ref. 58426). Deep-water species. Prefers higher temperatures. Feeds on small fishes and crustaceans (Ref. 6902). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Maximum depth reported taken from Ref. 117245. It may be captured as by-catch in deep water fisheries, but due to its depth preference, it is less likely to be vulnerable (Ref. 117245).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Основная ссылка Upload your references | ссылки | координатор : McEachran, John | соавторы

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)

Статус Красного Списка МСОП (Ref. 130435)

Не вызывающий беспокойства (LC) ; Date assessed: 19 July 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

FAO(Publication : search) | FishSource |

дополнительная информация

Trophic ecology
пищевые объекты
Diet compositions
Food consumptions
Food rations
хищники

Ecology
экология
Home ranges

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

Life cycle
размножение
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
личинки
динамика численности личинок

Distribution
страны
регионы FAO
Ecosystems
места находок
интродукции
BRUVS - Videos

Anatomy
Gill areas
мозг
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
звуки, издаваемые рыбами
Diseases / Parasites
Toxicities (LC50s)

Genetics
генетика
Electrophoreses
Heritabilities

Human related
Aquaculture systems
особенности рыбоводства
степень растяжения
Ciguatera cases
Stamps, coins, misc.

Outreach
соавторы

Taxonomy
народные названия
синонимы
морфология
морфометрия
изображения

References
ссылки

инструменты

Специальные отчеты

Проверить содержание в аквариумах | Проверить опубликованные видовые данные | Проверить опубликованные данные по аквакультуре

Скачать в формате XML

Резюмирующая страница | Point data | народные названия | Фото

ресурсы в Интернет

Estimates based on models

Preferred temperature (Ref. 115969): 3.1 - 4, mean 3.6 (based on 69 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [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): 3.7 ±0.57 se; based on food items.

устойчивость к внешним воздействиям (Ref. 120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).

Amblyraja jenseni (Bigelow & Schroeder, 1950)