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) >
Squaliformes (Sleeper and dogfish sharks)
角鯊目 (Sleeper and dogfish sharks) >
Dalatiidae (Sleeper sharks)
鎧鯊科 (Sleeper sharks)
Etymology: Euprotomicrus: eu-, a Greek intensive (i.e., very); protos (Gr.), first; mikros (Gr.), small, referring to very small first dorsal fin (See ETYFish); bispinatus: bi-, from bis (L.), two; spinatus (L.) thorny, referring to spiny processes on each pelvic fin (claspers) of the male (See ETYFish).
More on authors: Quoy & Gaimard.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海區的; 深度上下限 0 - 1800 m (Ref. 31367). 深水域; 38°N - 54°S
Circumglobal: In subtropical to temperate waters. Southeast Atlantic: near Ascension Island, east of Fernando de Noronha Island, and west of Cape of Good Hope, South Africa. Indian Ocean: Madagascar to Western Australia. North Pacific: Midway Islands, Hawaiian Islands to off California, USA. South Pacific: between New Zealand, Phoenix Island and southern Chile.
Circumglobal: 在亞熱帶的對溫帶的水域。 東南大西洋: 上升島附近， Fernando de Noronha 島以東與南非好望角西方。 印度洋: 馬達加斯加到西澳大利亞。 北太平洋: 中途島，夏威夷群島到美國加州外海。 南太平洋: 在紐西蘭，鳳凰島與智利南部之間。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 22.5, range 22 - 23 cm
Max length : 30.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 96339)
背棘 (總數) : 0; 臀棘: 0. Small dogfish with a cigar-shaped body, a distinct dark collar marking around the gill region, a conical snout, large round eyes (Ref. 5578), fleshy lips, enlarged triangular lower teeth, equal-sized gill slits (Ref. 5578), very small dorsal fins, and a paddle-shaped caudal fin with nearly symmetrical upper and lower lobes (Ref. 6871). Black with white fin edges; belly luminous (Ref. 247).
小的狗鯊具有一個雪茄-形狀的身體, 一個明顯的黑環紋鰓部，一個錐形吻，大的圓眼 (參考文獻 5578) ，被增大三角形的下顎齒，大小相同的鰓縫 (參考文獻 5578) ，非常小的背鰭的肉質的唇周圍, 與一槳狀的尾鰭有幾乎對稱的上葉與下葉.(參考文獻 6871) 黑色的有白色的鰭邊緣; 腹部發光.(參考文獻 247)
Epi-, meso-, and perhaps bathypelagic at 1->400 m (Ref. 58302). Occurs at or near the surface at night, descending to below 400 m (possibly as deep as 1,800 m) during the day (Ref. 31367). Feeds on squid, bony fishes, and crustaceans (Ref. 5578). Ovoviviparous (Ref. 205), with 8 young per litter, size at birth between 6 and 10 cm (Ref. 247). Caught with dip-nets and buckets at night (Ref. 6577).
Epi-, 中層, 與也許深海區的在單一 >400 公尺的.(參考文獻 58302) 棲息於水表或接近水表面處在晚上, 在 400 公尺 (可能深達 1,800 公尺) 之下下降到在白天期間.(參考文獻 31367) 吃烏賊，硬骨魚類與甲殼動物。 (參考文獻 5578) 卵胎生的 (參考文獻 205), 8 幼魚每胎, 出生時大小在 6之間與 10 公分.(參考文獻 247) 用下沈網與桶子捕獲.在晚上。 (參考文獻 6577)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Ovoviviparous, with 8 young per litter. Size at birth between 6 and 10 cm (Ref. 247). Distinct pairing with embrace (Ref. 205).Circumglobal: 在亞熱帶的對溫帶的水域。 東南大西洋: 上升島附近， Fernando de Noronha 島以東與南非好望角西方。 印度洋: 馬達加斯加到西澳大利亞。 北太平洋: 中途島，夏威夷群島到美國加州外海。 南太平洋: 在紐西蘭，鳳凰島與智利南部之間。
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 13 May 2015
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 5.7 - 15.3, mean 9.2 °C (based on 870 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00142 - 0.00675), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.1 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=8).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
