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: Sympterygia: Greek, syn, symphysis = grown together + Greek, pteryx = fin (Ref. 45335).
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 ? - 150 m (Ref. 54460). 溫帶; 32°S - 44°S
Southeast Pacific: Chile (Ref. 27540). Southwest Atlantic: Rio Grande do Sul, Brazil to Rawson, Argentina.
東南太平洋: 智利.(參考文獻 27540) 西南大西洋: Rio Grande do Sul 巴西到阿根廷的勞松。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 64 - ? cm
Max length : 63.0 cm WD 雄魚/尚未辨別雌雄; (Ref. 26408)
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 8.1 cm long and 4.6 cm wide (Ref. 41249). A common by-catch in the coastal and continental shelf bottom-trawl fisheries of the Argentine-Uruguayan Common Fishing Zone; also fished extensively by bottom longline (Ref. 54460).
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 8.1 公分長與 4.6 公分寬的.(參考文獻 41249) 一種常見的誤捕在那海岸的與阿根廷人-烏拉圭普遍的釣魚區域的大陸棚底拖網漁場; 也廣泛地被底部延繩釣魚.(參考文獻 54460)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).東南太平洋: 智利.(參考文獻 27540) 西南大西洋: Rio Grande do Sul 巴西到阿根廷的勞松。
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)
近危 (NT) (A2bd); Date assessed: 01 July 2019
人類使用
漁業: 商業性
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Estimates based on models
Preferred temperature (Ref.
123201): 7.7 - 16.4, mean 12.1 °C (based on 114 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00243 - 0.00569), b=3.11 (2.98 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.9 ±0.7 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 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
Nutrients (Ref.
124155): Calcium = 11.9 [2.2, 55.5] mg/100g; Iron = 0.261 [0.068, 0.721] mg/100g; Protein = 17 [14, 19] %; Omega3 = 0.824 [0.275, 3.072] g/100g; Selenium = 9.18 [2.90, 28.35] μg/100g; VitaminA = 16 [5, 52] μg/100g; Zinc = 0.476 [0.229, 0.853] mg/100g (wet weight);
