分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | 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: Squaliolus: Diminutive of squalus (L.), a sea-fish, usually applied to sharks, referring to small size of S. laticaudus. (See ETYFish); aliae: In honor of the Teng’s wife Huang A-li, for her “cordial help and constant encouragement” [originally spelled alii; since name honors a woman, aliae reflects the correct gender]. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海区的; 深度上下限 200 - 2000 m (Ref. 6871). 深水域
Western Pacific: Japan to Australia (off northwestern Australia and New South Wales).
西太平洋: 日本到澳洲 (外海的澳洲西北部與新南威爾斯).
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 15 - ? cm
Max length : 22.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 6871)
背棘 (总数): 1; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 0. The smalleye pygmy shark, Squaliolus aliae, is a very small dogfish (about 22cm) characterized by its small eye, with diameter about 46-70% of interorbital width, and with upper margin angular and chevron-shaped; upper lip with a pair of prominent lateral papillae (rarely indistinct) (Ref. 31367, 6871).Colour: dark brown to black, fin margins pale (Ref. 6871). Squaliolus are the only sharks with a fin spine on its first dorsal fin (spine sometimes concealed by skin) but not on its second dorsal fin; second dorsal fin long-based and low, about twice the length of the first dorsal fin base; first dorsal-fin base closer to pectoral fins than to pelvic fins; and caudal fin nearly symmetrical, with subterminal notch present (Ref. 247, 6871).
小眼的矮鲨 , Squaliolus aliae,是特徵为它的小眼,有直径大约 46-70% 的眼间骨宽度的一只非常小的狗鲨 (大约 22 公分), 而且与上缘有角而锯齿形的; 上嘴唇有一对突出的侧面乳突 (非常不明显的) 。 (参考文献 31367,6871)颜色: 深褐色的到黑色的, 鳍边缘灰白的.(参考文献 6871) Squaliolus 是鲨鱼有鳍棘在它的第一背鳍 (有时被皮肤隐藏的棘) 的唯一者但是不在它的第二背鳍鳍上; 第二背鳍鳍基底长而低的, 大约长度两倍于第一背鳍基底; 第一背鳍鳍基底更靠近胸鳍超过对腹鳍; 而且尾鳍几乎对称, 与接近端位的凹槽呈现.(参考文献 247,6871)
Possibly the smallest living shark (Ref. 6871). Found near continental and island land masses (Ref. 31367). Feeds mainly on cephalopods and small midwater bony fishes (Ref. 6871). Probably makes diurnal vertical migrations from within 200 m of the surface at night down to about 2,000 m during the day (Ref. 6871). Ovoviviparous (Ref. 6871).
可能最小活的鲨鱼.(参考文献 6871) 发现于靠近了大陆的与岛大陆区块.(参考文献 31367) 主要吃头足类动物与小的中层水域硬骨鱼类。 (参考文献 6871) 可能从晚上在水面下200公尺以内作每日垂直回游向下至大约 2,000 公尺在白天期间.(参考文献 6871) 卵胎生的.(参考文献 6871)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Distinct pairing with embrace (Ref. 205). Ovoviviparous but litter size unknown (Ref. 6871). Males mature at 15 cm (Ref. 31367).西太平洋: 日本到澳洲 (外海的澳洲西北部與新南威爾斯).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
人类利用
渔业: 没有兴趣
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Estimates based on models
Preferred temperature (Ref.
123201): 4.6 - 10.1, mean 6.5 °C (based on 559 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7520 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00141 - 0.00976), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.4 ±0.57 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
