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The DMCR Surveys Rare Marine Animals in Seagrass beds using Unmanned Aerial Vehicle (UAV)


Department of Marine and Coastal Resources Explore rare marine animals in the seagrass beds using Unmanned Aerial Vehicle (UAV) using the method Line-transect marine area Chanthaburi and Rayong provinces.


On November 28th-30th, 2023, staff of the Eastern Gulf of Thailand Marine and Coastal Resources Research Center conducted surveys of rare marine animals in seagrass areas using Unmanned Aerial Vehicle (UAV) using 44 line-transect methods, 7 flights around Thung Kha Beach, Noen Kho Subdistrict, Klaeng District, Ao Phe-Suan Son Beach, Phe Subdistrict, Mueang District, Rayong Province and Kung Krabaen Bay, Khlong Khut Subdistrict, Tha Mai District, Chanthaburi Province. The total survey area was 1,414 rai, with 2 rare marine animals found only in the seagrass area of ​​Ao Phe, Rayong Province:



1. Dugong (Dugong dugon), 2 body length measured from calculations using images from a drone, was found that both dugongs were 2.4 meters long from an external health assessment was found that the dugong's body condition was Normal as the behavior of finding food and swimming well.

2. Green turtle (Chelonia mydas), 9 body length measured from calculations using images from a drone was found to be between 46-86 centimeters in length, an external health assessment found that sea turtles can swim, dive, and respond well to their environment, the behavior found was coming to food in the seagrass area, the seagrass area includes the Chinese chive seagrass Halodule pinifolia, Chinese chive seagrass Halodule uninervis, and Halophila ovalis seagrass.




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