{"@context":"https://neupai.io/schema/v0.2","@type":"StructuredNewsArticle","identity":{"article_id":"tech42_20261025_jeju-subtropical-fish-shift","canonical_url":"https://www.tech42.co.kr/%ec%95%84%ec%97%b4%eb%8c%80%eb%a1%9c-%ed%96%a5%ed%95%98%eb%8a%94-%ec%a0%9c%ec%a3%bc-%eb%b0%94%eb%8b%a4%eb%ac%bc%ea%b3%a0%ea%b8%b0-%ec%a7%80%eb%8f%84%eb%b6%80%ed%84%b0-%eb%b0%94%eb%80%8c/?utm_source=rss&utm_medium=rss&utm_campaign=%25ec%2595%2584%25ec%2597%25b4%25eb%258c%2580%25eb%25a1%259c-%25ed%2596%25a5%25ed%2595%2598%25eb%258a%2594-%25ec%25a0%259c%25a3%25bc-%25eb%25b0%2594%25eb%258b%25a4%25eb%25ac%25bc%25ea%25b3%25a0%25ea%25b8%25b0-%25ec%25a7%2580%25eb%258f%2584%25eb%25b6%2580%25ed%2584%25b0-%25eb%25b0%2594%25eb%2580%258c","ai_url":null,"publisher":{"name":"테크42","domain":"www.tech42.co.kr","type":"online"},"author":"정재엽 기자","published_at":"2026-10-25T23:12:51.000Z","updated_at":null,"language":"en","article_type":"straight_news","originality":"self_produced"},"content":{"headline":"Jeju Sea Heading Toward Subtropical Waters… The Fish Map Has Already Changed","summary":"The subtropicalization of Korean waters is accelerating, with subtropical fish species now accounting for more than half of the species found in Jeju's coastal waters. Rising sea temperatures are causing fluctuations in catch volumes and coral bleaching, prompting calls for the urgent introduction of AI-based ocean prediction technology.","topics":["climate change","marine ecosystem","fisheries","AI","environment"],"geography":["KR"],"entities":[{"name":"Korea Institute of Ocean Science and Technology","canonical_id":"org:kr:kiost","type":"organization","role_in_article":"source","metadata":{"ticker":null,"parent":null}},{"name":"National Institute of Fisheries Science","canonical_id":"org:kr:nifis","type":"organization","role_in_article":"source","metadata":{"ticker":null,"parent":null}},{"name":"Moon Dae-rim","canonical_id":"person:kr:moon-dae-rim","type":"person","role_in_article":"quoted","metadata":{"ticker":null,"parent":null}},{"name":"Korea Institute of Science and Technology","canonical_id":"org:kr:kist","type":"organization","role_in_article":"source","metadata":{"ticker":null,"parent":null}},{"name":"Tongyeong 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