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Coral reefs surrounding Taiwan undergoing mass bleaching event

Coral reefs surrounding Taiwan undergoing mass bleaching event

2022-08-25

Environmentalists say coral reefs around Taiwan are undergoing a mass bleaching event amid rising sea temperatures and a lack of typhoons. According to ocean surveys, the reefs along the west coast of Hengchun Peninsula are especially badly hit, hitting the threshold to issue Level 2 alert for bleaching. Let’s hear from the Ocean Conservation Administration.

Wu Long-jing
Ocean Conservation Administration
A Level 1 alert means there may be noticeable coral bleaching. A Level 2 alert means there may be significant bleaching or death of corals. Southern Taiwan is now at Level 2 alert, and Northern Taiwan is now at level 1 alert.

Back in 2020, Taiwan saw its largest-ever coral bleaching event. Many coral ecosystems in the Hengchun Peninsula and Liuqiu Island were deemed to be experiencing the highest or second-highest loss of functioning. Experts say coral thrives at temperatures between 20 and 28 degrees Celsius. Typhoons play a key role in regulating water temperatures during the summer, as they bring cooler deep-ocean water to the surface, preventing overheating.

海水溫度升高 恆春珊瑚大範圍白化二級警戒

2022-08-25

全球海洋溫度不斷升高,台灣周邊海域這幾年更因為沒有颱風讓深海較冷的海水攪動,導致珊瑚出現白化狀況,根據調查,恆春半島西部的珊瑚繼2020年後,再度出現大範圍白化現象,而且已經到了二級警戒,讓保育團體及學者相當憂心。

[[海洋保育署副署長 吳龍靜]]
“所謂的一級警戒是指可能會發生明顯的珊瑚白化現象,二級警戒是指,可能會有嚴重的白化或是死亡情況發生,台灣南部是屬於二級警戒,在台灣的北部是屬於一級警戒”

2020年台灣海域周遭曾爆發最大規模珊瑚白化情形,恆春半島及小琉球珊瑚生態都有區域已淪最差失能及次差衰退等級,專家解釋,珊瑚適合生長溫度在20到28度左右,但近年來海洋溫度不斷上升,加上少了颱風來擾動深海的海水,因此讓珊瑚生長環境越來越糟。

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