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Euprotomicrus bispinatus (Quoy & Gaimard, 1824)

Pygmy shark
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Euprotomicrus bispinatus   AquaMaps   Data sources: GBIF OBIS
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Image of Euprotomicrus bispinatus (Pygmy shark)
Euprotomicrus bispinatus
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) 棘鮫目 (Sleeper and dogfish sharks) > Dalatiidae (Sleeper sharks) 黑鮫科 (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 生态学

海洋 深海区的; 深度上下限 0 - 1800 m (Ref. 31367). 深水域; 38°N - 54°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

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.
南北溫帶。 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 / 年龄

Maturity: Lm 22.5, range 22 - 23 cm
Max length : 30.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 96339)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 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).
小的狗鲨具有一个雪茄-形状的身体, 一个明显的黑环纹鳃部,一个锥形吻,大的圆眼 (参考文献 5578) ,被增大三角形的下颚齿,大小相同的鳃缝 (参考文献 5578) ,非常小的背鳍的肉质的唇周围, 与一桨状的尾鳍有几乎对称的上叶与下叶.(参考文献 6871) 黑色的有白色的鳍边缘; 腹部发光.(参考文献 247)

生物学特性     字汇 (例如 epibenthic)

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).

栖息于水表或接近水表面处在晚上, 在 400 公尺 (可能深达 1,800 公尺) 之下下降到在白天期间.(参考文献 31367) 吃乌贼,硬骨鱼类与甲壳动物。 (参考文献 5578) 卵胎生的 (参考文献 205), 8 幼鱼每胎, 出生时大小在 6之间与 10 公分.(参考文献 247) 用下沈网与桶子捕获了在晚上。 (参考文献 6577)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Ovoviviparous, with 8 young per litter. Size at birth between 6 and 10 cm (Ref. 247). Distinct pairing with embrace (Ref. 205).南北溫帶。 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。

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

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)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)

  最不相关 (LC) ; Date assessed: 13 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 没有兴趣
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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):  PD50 = 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).
营养阶层 (Ref. 69278):  4.1   ±0.4 se; based on diet studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=8).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (21 of 100).