Adelie penguin census in 1983-84 breeding season in the Syowa Station area, East Antarctica
The population number of the Adelie penguin in the rookeries of the Syowa Station area, East Antarctica was counted as part of the biological monitoring program of JARE-24. The maximum number at each rookery in the 1983-84 breeding season was in the range of the assumed population size, but the number of penguins increasing for two years since 1981 began to decline steeply in the 1983-84 season. The annual fluctuation of penguin numbers in the Syowa Station area was discussed in relation to climatic and sea ice condition and possible human disturbances.
- Memoirs of National Institute of Polar Research. Special issue
Memoirs of National Institute of Polar Research. Special issue 40, 325-329, 1986-02