Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
. Tropical; 33°N - 37°S, 104°E - 12°E
Indo-Pacific and Atlantic Ocean.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm Max length : 39.0 cm TL con đực/không giới tính; (Ref. 8812); Khối lượng cực đại được công bố: 144.00 g (Ref. 356)
Culmen: 3.72 cm; tarsus: 2.5 cm; wing: 23.5 cm.
Total Length: 35 to 39 cm; Wingspan: 66 (Ref. 8812) to 76 cm (Refs. 84934, 91362). Total population is over 200,000 pairs (Ref. 84934). Coastal to <10 km offshore (Ref. 356). Found on coastal rock, and over sea (Ref. 83946). Breeds annually in dense colonies, preferably in bushes and trees in Atlantic and Pacific Oceans (Ref. 84934). They are double-brooded. When there is danger, alarm calls are given by adults and chicks respond by crouching in place (Ref. 87784). Highly pelagic. Typically feeds far out at sea in large, gregarious flocks over shoals of predatory fish (Ref. 91362). Exhibits dipping and surface-seizing foraging behavior (Ref. 356). Feed mainly by dipping, hovering and picking from or just below the surface of the water. Also, shallow-plunging (Ref. 126735).
Lusk, M.R., P. Bruner and C. Kessler. 2000. (Ref. 5591)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Human uses
| FishSource |
Các công cụ
Các nguồn internet
Estimates based on models
Preferred temperature
(Ref.
115969): 24.2 - 29.3, mean 28.2 (based on 2178 cells).
Thích nghi nhanh
Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (K=42.36).
Vulnerability
Low to moderate vulnerability (29 of 100).
Price category
Unknown.