Leucoraja melitensis, Maltese ray

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Leucoraja melitensis (Clark, 1926)

Maltese ray
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Leucoraja melitensis   AquaMaps   Data sources: GBIF OBIS
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Leucoraja melitensis
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Leucoraja: Greek, leykos = white + Latin, raja = a fish, Raja sp. (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range 生态学

; 海洋 深海底的; 深度上下限 60 - 600 m (Ref. 3167).   深水域; 42°N - 36°N, 2°W - 16°E

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Mediterranean Sea: endemic to the coasts of Tunisia, Malta and a single record from Italy; rare off Algeria.
地中海: 突尼西亞海岸,馬爾他與義大利的單一記錄的特有種; 稀有的阿爾及利亞外海。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3167)

生物学特性     字汇 (例如 epibenthic)

Feed on crustaceans mainly amphipods (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). About 10-56 eggs are laid per individual annually (Ref. 41305, 41314).

主要地捕食甲壳动物片脚类动物。 (参考文献 3167) 卵生的。 明显的成对出现。 幼鱼可能倾向跟随大的个体, 例如他们的母亲.(参考文献 205) 卵为长方形鞘囊具有僵硬的触角沈积在沙滩或泥滩的角落.(参考文献 205) 大约 56个卵每年每个体生产的 10-.(参考文献 41305,41314)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Breeds throughout the year, but ripe females observed mainly in spring and autumn (Ref. 3167). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).地中海: 突尼西亞海岸,馬爾他與義大利的單一記錄的特有種; 稀有的阿爾及利亞外海。

主要参考文献 Upload your references | 参考文献 | 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)

世界自然保护联盟红皮书 (Ref. 123251)

  极度濒危 (CR) (A2bcd+3bcd); Date assessed: 25 November 2014

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 13.1 - 14.6, mean 14 °C (based on 23 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00145 - 0.00660), b=3.22 (3.04 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.3   ±0.53 se; based on food items.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Fec=10).
脆弱性 (Ref. 59153):  Moderate vulnerability (42 of 100) .