A coastal-littoral and epipelagic shark that prefers boreal to cool temperate waters, from the surface to at least 152 m, and is common in continental offshore waters but range inshore to just off beaches. Occurs singly or in schools or feeding aggregations of several individuals; feeds on fishes (Ref. 247). Seasonally migratory (following food prey) and segregate by age and sex where adults move further north than young (Ref. 58085). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). With up to 4 young in a litter (Ref. 247). Fast swimmer (Ref. 9988). Potentially dangerous but has never or seldom been implicated in human attacks (Ref. 247). Causes considerable damage to commercial catches and gear (Ref. 6885). Utilized fresh, dried or salted, and frozen; fins, hides and livers are also used, with fins having particular value; can be broiled and baked (Ref. 9988). Reported to attain at least 27 years of age and reach maximum depth of at least 792 m (in Ref. 119696).
一海岸的-沿海地区与喜欢北方生物带胜过冷温带水域的表层带鲨鱼, 从表面到至少 152 公尺.(参考文献 247) 常见于大陆的离岸水域但是排列沿海地区到正好外海的海滩.(参考文献 247) 各别地生存或成群或一些个体的觅食群集.(参考文献 247) 捕食鱼类。 (参考文献 247) 卵胎生的, 胚胎吃产生于母亲的卵黄囊与其他的卵.(参考文献 50449) 多达 4 幼鱼在一胎.(参考文献 247) 快速的游泳者.(参考文献 9988) 可能危险但是从不或很少被关系到攻击人类.(参考文献 247) 造成對商業的捕獲與網具的相當多的傷害。 (參考文獻 6885) 生鮮使用, 乾燥或鹽醃, 與冷凍; 鰭, 皮與肝臟也被使用, 藉由有特別的價值的鰭; 能被火烤而且燒烤。 (參考文獻 9988)
Preferred temperature (Ref.
115969): 1.7 - 8.7, mean 4.7 (based on 832 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7813 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00405 - 0.02151), b=3.04 (2.84 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.5 ±0.80 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=4).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
