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Raja brachyura Lafont, 1871

Blonde ray
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Raja brachyura   AquaMaps   Data sources: GBIF OBIS
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Image of Raja brachyura (Blonde ray)
Raja brachyura
Picture by Bergmann, M.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | 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) > Rajinae
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range 生態學

; 海洋 居於水底的; 深度上下限 10 - 380 m (Ref. 6808).   溫帶; 60°N - 21°N, 18°W - 24°E

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

Eastern Atlantic: Shetland Islands to Morocco, Rio de Oro (Western Sahara), and Madeira.
東大西洋: 雪特蘭群島到摩洛哥,里奧德奧羅 (西撒哈拉) 與馬得拉群島。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 90.2, range 60 - ? cm
Max length : 120 cm TL 雄魚/尚未辨別雌雄; (Ref. 41333); 125.0 cm TL (female); 最大體重: 14.3 kg (Ref. 40637)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 臀棘 0; 臀鰭軟條: 0. Upper surface wholly prickly, except in juveniles; underside only prickly along front margins of disc; orbital thorns separate; a regular median row of 40-45 thorns in juveniles and adult females, interrupted on back in males; 60-90 tooth rows; upper surface ochre, with numerous small dark spots to margins of disc, underside white (Ref. 3167).
上表皮長滿刺又除了稚魚; 下面只有多刺的沿著體盤的前緣; 眼窩的刺分開; 40-45 的一般中央列在稚魚與雌性成魚中的刺,在雄性中中斷背面; 60-90個齒列; 上表皮黃土色, 有很多的對體盤邊緣的小深色的斑點, 腹面白色的.(參考文獻 3167)

生物學特性     字彙 (例如 epibenthic)

Found on sand and sand-rock bottoms (Ref. 6808). Feed on all kinds of benthic animals (Ref. 3167). 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 10.0-14.3 cm long and 5.8-9.0 cm wide (Ref. 41250). About 40-90 eggs are laid per individual every year (Ref. 41250).

棲息於沙子與砂岩底了。 (參考文獻 6808) 捕食各種的底棲動物。 (參考文獻 3167) 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 10.0-14.3 公分長與 5.8-9.0 公分寬的.(參考文獻 41250) 大約 40-90個卵生產每個別的每年.(參考文獻 41250)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Spawning mainly from February to August with at least 30 egg-cases laid (Ref. 3167). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).東大西洋: 雪特蘭群島到摩洛哥,里奧德奧羅 (西撒哈拉) 與馬得拉群島。

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. 120744)

  近危 (NT) ; Date assessed: 01 December 2008

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

漁業: 低經濟; 游釣魚種: 是的
FAO(漁業: 產生; publication : search) | FishSource | 周邊海洋

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俗名
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新陳代謝
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生態毒物學
繁殖
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產卵群集
孕卵數

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 7.1 - 16.2, mean 10.3 (based on 462 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00144 - 0.00348), b=3.27 (3.15 - 3.39), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.8   ±0.61 se; Based on food items.
回復力 (Ref. 69278):  低的, 最小族群倍增時間4.5 - 14 年 (K=0.12-0.19; tmax=15; Fec=40).
Prior r = 0.20, 95% CL = 0.11 - 0.36, Based on 1 stock assessment.
瀕危性 (Ref. 59153):  High to very high vulnerability (65 of 100) .
價格種類 (Ref. 80766):   Medium.