Common names from other countries
Classification / Names / Names
俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range
生态学
大洋性; 深度上下限 100 - 850 m (Ref. 97142). ; 52°N - 43°S, 34°E - 7°W (Ref. 275)
分布
国家 | FAO区域 | 生态系 | 标本纪录 | 简介
Circumglobal in northern and southern warm temperate waters.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm Max length : 21.0 cm ML 雄鱼/尚未辨别雌雄; (Ref. 97142); 24 cm ML (female)
This species is an important prey for commercial species of fishes (Ref. 97142). Off Hawaii, occurs between depths of 100 and 850 m; in daytime it concentrates at 500 to 700 m (range 355 to 850 m) and vertically migrates at night to depths of 100 to 500 m with 85% concentrated at 150 to 300 m. In the northwestern Pacific transitional warm core rings and cold water, this species is a non-migrant, remaining below 400 m. Analysis of stomach contents from sperm whales off Japan suggests that mature females occur in a dense aggregation adjacent to an isolated oceanic rise. This species is extremely important prey for sperm whales and other odontocete whales, including short-finned pilot whales and Hubb’s beaked whale. Other predators include blue sharks in the northwestern Pacific. It is reported from the stomachs of swordfish off the west coast of Baja California, Mexico. Analysis of the dimorphic eyes suggests that the large left eye points upward and the small right eye points ventrolaterally when the animal is in its normal oblique, arms downward, position. This enables the squid in its daytime depth of 500 to 700 m, to use its large eye to utilize the dim daylight from above, while the small right eye perceives bioluminescent light from the side and below (Ref. 97142).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults.
主要参考文献
参考文献 | 合作者 | 合作者
Roper, C.F.E., M.J. Sweeney and C.E. Nauen. 1984. (Ref. 275)
世界自然保护联盟红皮书 (Ref. 130435)
Not Evaluated
Not Evaluated
人类利用
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更多信息
年龄范围
成长
体长-体重
体长-体长
型态特徵
仔鱼
丰度
网络资源
Estimates based on models
Preferred temperature
(Ref.
115969): 8.5 - 18.6, mean 12.3 (based on 786 cells).
脆弱性
Low vulnerability (10 of 100).
