Unprecedented Sighting of Tropical Venomous Sea Snake in Korean Waters: Climate Change at Play
The discovery of a tropical venomous sea snake native to the warm waters near the Philippines in the southern regions of Korea, particularly in the Dado Sea area south of Yeosu, Jeollanam-do, is signaling a significant shift in marine ecosystems. This marine reptile, known as the Broad-banded venomous sea snake, has typically inhabited regions around the Philippines, Okinawa in southern Japan, and Taiwan. The appearance of this venomous species further up the Korean sea is raising concerns and prompting analysis.
Climate-Driven Migration
The National Park Service, a Ministry of Environment agency, confirmed the presence of the Broad-banded venomous sea snake and another subtropical creature, the Bamsu Mandrami coral, in the waters near Soganyeo and Geomundo islands in the Dado Sea National Park. This discovery underscores the impact of rising water temperatures on marine life. As global warming continues, tropical and subtropical species are migrating into Korean waters, a phenomenon attributed to the warming seas.
Dramatic Shifts in Ecosystems
The venomous sea snake, a member of the cobra family, possesses venom over 20 times more potent than ordinary venomous snakes. Its appearance in Korean waters highlights the changing dynamics of marine ecosystems. The subtropical coral worm, Bamsu Mandrami, considered a class II endangered species, is also making its presence felt. As a sensitive species influenced by water temperature, its movement toward Korean waters provides crucial insights into the evolving impact of climate change.
Warming Trends in Korean Waters
The average temperature of Korean waters has witnessed an upward trend, indicative of the changing climate. From 1981 to 2010, the average temperature was recorded at 18.32 degrees Celsius. In the last decade (2011 to 2020), this figure increased to 18.53 degrees Celsius. Particularly in August and September, the average temperature surged to 26 degrees Celsius, signaling a warming trend that aligns with global climate change patterns.
Observing Ecosystem Changes
Jung Yong-sang, the head of the National Park Research Institute, emphasizes the need for continued observation of marine ecosystems. Over the past 36 years, Jeju Island's waters have experienced a temperature increase of 2 degrees Celsius. Understanding the introduction routes of these tropical and subtropical marine organisms becomes crucial in comprehending the ongoing ecological transformations.
In conclusion, the appearance of the tropical venomous sea snake in Korean waters serves as a tangible manifestation of climate change's influence on marine life, necessitating ongoing research and vigilance.
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