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Leucoraja erinaceus (Mitchill, 1825)

Little skate
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Leucoraja erinaceus
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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

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Rajiformes (Skates and rays) 鰩目 (Skates and rays) > Rajidae (Skates) 鰩科 (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 生態學

海洋 居於水底的; 海洋洄游的 (Ref. 51243); 深度上下限 10 - 914 m (Ref. 106604).   溫帶; 49°N - 33°N, 78°W - 59°W (Ref. 55277)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Western Atlantic: southern Gulf of St. Lawrence and Nova Scotia in Canada to North Carolina, USA.
西大西洋: 聖勞倫斯灣南部與加拿大的新斯科舍省到美國北卡羅萊那州。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 37.5, range 32 - 43 cm
Max length : 62.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 106604); 最大年齡: 12 年 (Ref. 88929)

生物學特性     字彙 (例如 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).

通常在從淺的水域到 90 公尺深 (參考文獻 7251) 的沙或多碎石的底部上, 藉由 1.2-21個 ° C. 的溫差 底棲的.(參考文獻 5951) 大部份不活躍白天時, 但是活躍的在深色的情況.(參考文獻 10807) 卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 4.6-6.3 公分長與 2.7-4.8 公分寬的, 大約 10-35個卵生產每年.(參考文獻 41250) 持有一個發電器位於.尾部.(參考文獻 10807) 發電器放電 (EOD) 活動是間歇的 (參考文獻 10011) 而且在黑暗的時候似乎更頻繁.(參考文獻 10808) 這種的個別 EOD 是單相的﹐帶負電的, 而且持續 70 ms 。 (參考文獻 10011)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

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).西大西洋: 聖勞倫斯灣南部與加拿大的新斯科舍省到美國北卡羅萊那州。

主要參考資料 Upload your references | 參考文獻 | 合作者 : McEachran, John | 合作者

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 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 19 July 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




人類使用

FAO(Publication : search) | FishSource | 周邊海洋

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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).
營養階層 (Ref. 69278):  3.6   ±0.1 se; based on diet studies.
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (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).