Common names from other countries
Classification / Names / Names
俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range
生態學
.
Pacific Ocean and Western Central Atlantic.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm Max length : 81.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 8812); 最大體重: 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 | 產卵場 | 卵 | 孕卵數 | 仔魚
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).
主要參考資料
參考文獻 | 合作者 | 合作者
Lepage, D. 2007. (Ref. 7816)
IUCN 瀕危狀態 (Ref. 130435)
近危 (NT) (A4bd); Date assessed: 07 August 2018
CITES狀態 (Ref. 108899)
Not Evaluated
Not Evaluated
人類使用
| FishSource |
工具
網路資源
Estimates based on models
回復力
高度, 族群倍增時間少於 15個月 (K=3.4-9.56).
瀕危性
Moderate to high vulnerability (52 of 100).
價格種類
Unknown.
