7-8月に東北沖で観察されたミズナギドリ類
1996 年 45 巻 3 号 p. 191-193
詳細
1996 年 45 巻 3 号 p. 191-193
A total of 5, 305 Proccellariiform birds were counted at the Pacific off N. E. Japan (36-41°N, 142- 152°E) during 23 days of observation from fishing vessels, July-August in 1982-1989. Calonectris leucomelas was abundant where surface water temperature ranged from 20.3 to 26.5°C from coastal water to 600 km offshore. Pterodroma longirostris was common in pelagic area (24.4-26.6°C). Pt. solandri was observed up to 39°N while Pt. externa occured up to 36°30′N.
