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Leucoraja erinaceus (Mitchill, 1825)

Little skate
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Leucoraja erinaceus
Picture by Flescher, D.


Canada country information

Common names: Raie-hérisson
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Ranges from Newfoundland (Ref. 5951) to Nova Scotia (Ref. 7251).
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

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: Leucoraja: Greek, leykos = white + Latin, raja = a fish, Raja sp. (Ref. 45335).
  More on author: Mitchill.

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

морской демерсальный; мигрирует в океане (Ref. 51243); пределы глубины 10 - 914 m (Ref. 106604).   Temperate; 49°N - 33°N, 78°W - 59°W (Ref. 55277)

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

Western Atlantic: southern Gulf of St. Lawrence and Nova Scotia in Canada to North Carolina, USA.

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 37.5, range 32 - 43 cm
Max length : 62.0 cm TL самец/пол неопределен; (Ref. 106604); наибольший возраст (опубликованны данные): 12 годы (Ref. 88929)

биология     глоссарий (например epibenthic)

Usually on sandy or gravelly bottoms from shoal waters to 90 m depth (Ref. 7251), with temperature range of 1.2-21°C. Benthic (Ref. 5951). Mostly inactive during daylight, but active under dark conditions (Ref. 10807). Feeds on bottom-dwelling organisms such as crabs, shrimps, polychaetes, sea squirts, mollusks, squids and bony fishes (Ref. 27549). 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 4.6-6.3 cm long and 2.7-4.8 cm wide, about 10-35 eggs are laid annually (Ref. 41250). Possesses an electric organ located in the tail region (Ref. 10807). Electric organ discharge (EOD) activity is intermittent (Ref. 10011) and seemed more frequent during dark periods (Ref. 10808). The individual EOD of this species is monophasic, head-negative, and lasts 70 ms (Ref. 10011).

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

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).

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)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless




Использование человеком

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дополнительная информация

Trophic ecology
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Diet compositions
Food consumptions
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Ecology
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Estimates based on models

Preferred temperature (Ref. 115969): 3.3 - 11.9, mean 6.8 (based on 97 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00248 - 0.00320), b=3.22 (3.18 - 3.26), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.1 se; based on diet studies.
устойчивость к внешним воздействиям (Ref. 120179):  низкий, минимальное время удвоения популяции 4.5-14 лет (K=0.29-0.35; tm=4.5; Fec=10; tmax=12).
Prior r = 0.09, 95% CL = 0.06 - 0.14, Based on 1 full stock assessment.
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (50 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (90 of 100).