分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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: Neoraja: Greek, neos = new + Latin, raja = fish, Raja sp. (Ref. 45335).
Eponymy: Dr Matthias F W Stehmann (d: 1943) is a German ichthyologist whose university career at Kiel University (1962–1969) resulted in degrees covering marine sciences, zoology and limnology and culminated with a doctorate in marine sciences. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 102 - 1025 m (Ref. 5578). 深水域; 29°S - 40°S
Southeast Atlantic: off the Orange River mouth to south of the Agulhas Bank, South Africa.
東南大西洋: 外海的對南非的 Agulhas 邊坡南方的橘河嘴。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 37.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 106604)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
A dwarf softnose skate with a bluntly pointed snout and very large close-set eyes; tail longer than body in adult; pectoral disc angular with rounded corners, and anterior edges more undulated in adult male than in female; large thorns around eyes, on shoulders, and in interrupted single row from back to dorsal fins (Ref. 5578). Brownish-grey above, with 6-7 crossbars on tail; underside pale with dark brown areas along the front and rear edges of disc, on snout and on underside of tail (Ref. 5578).
一個矮小的軟鼻魟魚具有一個頓尖的吻與非常大的靠攏在一起眼; 尾部較長超過身體在成魚中; 胸盤有角的與圓角 , 與前緣在雄性成魚中較波浪狀超過母魚; 眼的周圍大刺, 在肩上, 而且形成中斷的一列從背部到背鰭.(參考文獻 5578) 背面灰褐色的, 在尾部上有 6-7 交叉的條紋; 下面灰白的有深褐色的在吻與尾巴下上,區域沿著體盤的前面與後緣.(參考文獻 5578)
Found on the upper slope (Ref. 5578). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Probably taken by hake trawlers (Ref. 5578).
棲息於上層斜坡了。 (參考文獻 5578) 卵生的.(參考文獻 50449) 卵在貝殼上有像觸角一樣的突出。 (參考文獻 205) 可能被鱈魚底拖網捕獲。 (參考文獻 5578)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).東南大西洋: 外海的對南非的 Agulhas 邊坡南方的橘河嘴。
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: Version 2024-2)
無危 (LC) ; Date assessed: 24 April 2018
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Estimates based on models
Preferred temperature (Ref.
123201): 6.1 - 12.1, mean 10.8 °C (based on 9 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00364 - 0.01145), b=3.29 (3.14 - 3.44), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (28 of 100).
