日本中央大學法學院教授海部健三與研究員白石廣美、東北大學副教授石井敦及慶應大學特聘副教授杉本青等所組成之研究團隊，最近分析了過去30年間4家主要全國性報紙上發表的8,387篇關於鰻魚的文章，研究發現這些報紙對國際自然保護聯盟（IUCN）將鰻魚列入紅色名錄的瀕危物種名單相關報導增加並強調與鰻魚保護的相關文獻，雖然報導對鰻魚保護有一定影響，但影響並沒有持續下去。研究團隊並指出「今後必須制定機制與舉措來補充與強化IUCN紅色名錄影響的有效性」。
研究團隊查閱了1992年到2021年，即過去30年間日本全國性主要四份報紙（朝日、每日、日本經濟及讀賣新聞）有關鰻魚報導之相關文章，透過全文檢索與詳細標題審閱，抽取與「鰻魚」主題有關文章，並結合文本內容的挖掘與統計進行分析。該團隊指出，或許由於歐洲鰻與美洲鰻並非日本原生物種，因此其被IUCN列入紅色名錄的瀕危物種名單一事，日本的報紙報導幾乎沒有反映此事實。反而這些媒體傾向於報導直接影響日常生活與經濟的話題，例如與「食品」及「貿易」有關之問題，例如「華盛頓公約」對歐洲鰻國際貿易限制等相關議題。團隊報告指稱「此一研究顯示，國際有關鰻魚資源保護評估的本身，對長期報導與公眾輿論影響力有限」。此一研究成果將於國際學術期刊「PLOS One」10月30日刊出。
- Published: October 29, 2025
- https://doi.org/10.1371/journal.pone.0331511
Abstract
The IUCN Red List is a vital tool for identifying threatened species and raising public awareness. This study examined how the listing of freshwater eels (Anguilla spp.) influenced newspaper coverage in Japan, a major consumer of eels. We analysed 8387 eel-related articles from four major newspapers between 1992 and 2021 using text-mining and statistical methods, along with manual review of a part of the articles. Peaks in article numbers coincided with major events, such as the IUCN listing of the Japanese eel as Endangered in 2014. However, the influence of the Red List was short-lived and limited in strength, with minimal media attention given to non-native eel species such as European eel. Category-specific analysis revealed that issues related to food and trade dominated media coverage, while conservation-focused reporting was less prominent. Our findings suggest that while the Red List can momentarily increase media attention, its impact on long-term public awareness is limited. Strengthening expert engagement, international cooperation, and consumer education could be essential to enhance the conservation impact of the Red List.
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