Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
ভাসমান; গভীরতার পরিসীমা 0 - 2 m (Ref. 119695). Tropical; 34°N - 47°S, 180°W - 180°E
Indo-Pacific, Atlantic and Antarctic Indian Ocean.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm ?  range ? - ? cm Max length : 45.0 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 8812); সবের্াচ্চ প্রকাশিত ওজন : 167.00 g (Ref. 356)
Culmen: 4.16 cm; tarsus: 5.715 cm; wing: 28.1 cm.
Total Length: 40 to 45 cm; Wingspan: 79 to 86 cm (Ref. 8812, 84934). Total population is 300,000 to 500,000 pairs. Tropical populations are sedentary while subtropical populations are more dispersive (Ref. 84934). Found nearshore to <100 km offshore (Ref. 356). Breeds aseasonally and colonially on cliffs, flat beaches, bare ground, and in bushes and trees on tropical and subtropical islands (Ref. 84934, 87784). Double-brooded (Ref. 84934). Highly pelagic and gregarious. Typically in large feeding flocks far out at sea over shoals of predatory fish (Ref. 91362). Foraging behavior includes dipping and snatching food from the sea surface (Refs. 356, 84934, 87784) rarely plunge-diving or settling on water (Ref. 84934, 87784, 91362).
Enticott, J. and D. Tipling. 1997. (Ref. 84934)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Human uses
| FishSource |
হাতিয়ার
ইন্টারনেট সুত্র
Estimates based on models
স্থিতিস্থাপক
উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (K=9.04-38.85).
Vulnerability
Low to moderate vulnerability (35 of 100).
Price category
Unknown.