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) >
Arhynchobatidae (Softnose skates)
Etymology: Atlantoraja: Greek, atlantes = havin the strenght of Atlas, the god that supported the pillar s of the universe in the Greek mithology + Latin, raja = 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 - 100 m (Ref. 57911). 亞熱帶的; 20°S - 40°S, 60°W - 40°W (Ref. 57911)
Southwest Atlantic: Brazil, Uruguay and Argentina.
西南大西洋: 巴西，烏拉圭與阿根廷。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 105.0 range ? - ? cm
Max length : 132 cm TL 雄魚/尚未辨別雌雄; (Ref. 57911); common length : 45.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6077)
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 capsule measures 92-103 mm long and 72-80 mm wide (Ref. 41249). Utilized as fishmeal (Ref. 6077).
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) 卵鞘有 92-103 mm 長與 72-80 mm 寬的長。 (參考文獻 41249) 用來作魚粉了。 (參考文獻 6077)
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).西南大西洋: 巴西，烏拉圭與阿根廷。
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)
極危 (CR) (A2bd); Date assessed: 01 July 2019
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 10.6 - 23.2, mean 17.1 °C (based on 116 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.80 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): Very high vulnerability (79 of 100).
