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: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 102 - 1098 m (Ref. 106604). 深水域; 27°S - 40°S
Southeast Atlantic: Lüderitz, Namibia to off Cape Agulhas, South Africa.
東南大西洋: 那米比亞的盧德里茲到南非的艾古哈斯角外海。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 65.1 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
Small skate with a very short, obtusely pointed snout, large, close-set, bulging eyes and a thick disc; tail thick and much longer than body; conspicuous light thorns make disc and tail very rough (Ref. 5578). Light grey to brownish above, with or without darker spots; young with distinctive white-barred pattern; underside white (Ref. 5578).
小的魟魚具有一個非常短的﹐圓頭尖的吻﹐和大的, 靠攏在一起, 凸出眼與一個厚的體盤; 尾部厚而遠長過身體; 顯著的淡刺使體盤與尾部非常粗糙。 (參考文獻 5578) 淺灰色到上方褐色的, 具有或者沒有深色的斑點; 幼魚有特殊的白色條紋的圖案; 腹面白色的.(參考文獻 5578)
Found on the upper slope (Ref. 5578). Feed on mysids, lightfishes, and polychaetes (Ref. 5578). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Caught by hake trawlers (Ref. 5578).
棲息於上層斜坡了。 (參考文獻 5578) 捕食糠蝦，燈眼魚與多毛類動物。 (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) 被鱈魚底拖網捕獲了。 (參考文獻 5578)
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).東南大西洋: 那米比亞的盧德里茲到南非的艾古哈斯角外海。
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)
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Estimates based on models
Preferred temperature (Ref.
123201): 6.5 - 13.8, mean 8 °C (based on 11 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00173 - 0.00526), b=3.24 (3.09 - 3.39), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.53 se; based on food items.
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): Moderate to high vulnerability (46 of 100).
