Aves |
Sphenisciformes |
Spheniscidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
. Subtropical
Western Indian Ocean and Eastern Atlantic.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ?  range ? - ? cm Max length : 70.0 cm TL جنس نر / بدون خواص جنسي; (مرجع 91362); بيشينه وزن گزارش شده: 3.1 kg (مرجع 356)
Population decline was recorded in the 19th century wherein 295,000 birds in 1956 became 170,000 birds in 1978. Threats include oil pollution, fisheries, and competition for food and space (Ref. 84934). This is a gregarious species that is commonly found in small groups and within 50 km of shoreline. It breeds in huge colonies in burrows (Ref. 91362), mainly on offshore islands (Ref. 84934). Underwater pursuit (Ref. 356).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Harrison, P. 1987 Seabirds of the world: a photographic guide. Christopher Helm, Hong Kong, 317p. (مرجع 91362)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
خطر برای انسان ها
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Population dynamicsرشدMax. ages / sizesLength-weight rel.Length-length rel.نوسانات طولیMass conversionفراواني Life cycleتولید مثل
بلوغ
Fecundity
تخم ریزی
Eggs
نمو تخم
Larvae
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
Estimates based on models
Fishing Vulnerability
Moderate to high vulnerability (48 of 100).
طبقه قيمت
Unknown.