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
.
Pacific Ocean and Western Central Atlantic.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm Max length : 81.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 8812); 最大体重: 2.9 kg (Ref. 356)
Wing: 20.3 cm.
Total Length: 79 to 89 cm (Ref. 8812). Total annual breeding population of some 362,000 pairs representing about 1,200,000 to 1,400,000 birds (Ref. 84934). Occurs over open ocean (Refs. 356, 122680). Mainly feeds at night and often far from breeding colony. Forages with conspecifics, but rarely with other species. Seizes prey from the surface while sitting on the water. Scavenges on carrion and follows fishing boats. Diet consists mainly of squid as well as deep-water crustaceans, fish and flyingfish eggs (Ref. 122680).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Breeding birds arrive at the islands in the first week of November, egg laying starts late November to early December. Eggs start to hatch in late January to early February, and by the second week of August all birds have fled the island (Ref. 96995).
主要参考文献
参考文献 | 合作者 | 合作者
Lepage, D. 2007. (Ref. 7816)
世界自然保护联盟红皮书 (Ref. 130435)
临近濒危 (NT) (A4bd); Date assessed: 07 August 2018
Not Evaluated
Not Evaluated
人类利用
| FishSource |
工具
网络资源
Estimates based on models
回复力
高度, 族群倍增时间少于 15个月 (K=3.4-9.56).
脆弱性
Moderate to high vulnerability (52 of 100).
价格分类
Unknown.
