https://news.docodemodouga.net/story.php?title=1-5%E2%84%83%E3%81%A82%E2%84%83%E3%81%AE%E9%81%95%E3%81%84%E3%81%A8%E6%B0%97%E5%80%99%E5%A4%89%E5%8B%95%E3%81%AE%E8%A6%8B%E9%80%9A%E3%81%97 発表元:海洋政策研究所、掲載日:2025-12-23 Tue, 23 Dec 2025 02:40:05 UTC en