Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
экология
. Tropical
Pacific Ocean and Western Central Atlantic.
Length at first maturity / Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm Max length : 81.0 cm TL самец/пол неопределен; (Ref. 8812); наибольший вес (опубликованные данные): 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
половая зрелость | размножение | нерест | икра | Fecundity | личинки
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).
Основная ссылка
ссылки | координатор | соавторы
Lepage, D. 2007. (Ref. 7816)
Статус Красного Списка МСОП (Ref. 130435)
Статус СИТЕС (Ref. 108899)
Not Evaluated
Not Evaluated
Использование человеком
| FishSource |
инструменты
дополнительная информация
Возраст/РазмерыростЗависимость между длиной и массой телаЗависимость между длинамиморфологияличинкичисленность
ресурсы в Интернет
Estimates based on models
устойчивость к внешним воздействиям
высокий, минимальное время удвоения популяции до 15 месяцев (K=3.4-9.56).
Уязвимость
Moderate to high vulnerability (52 of 100).
Категория цены
Unknown.
