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Zulham Apandy Harahap


This study located in the waters of Jaring Halus Village, Secanggang Subdistrict, Langkat Regency which conducted to identify types of dolphin and to get information about distribution patterns and density of dolphins as a first step to assessing the existence and flow of dolphin populations that had never been done before. This research used 2 methods. First, the method that was used in this study was distance sampling with line transects, observation using a group of observers on a motorized boat (single observer platform). Meanwhile, the second method used a drone as a survey platform which allows the area to be surveyed relatively quickly. The results of research carried out on 12-14 June 2019 found an uneven distribution of dolphins with a total appearance of 13 times and 29 individuals. The types of cetaceans found during the survey were Orcaella brevirostris (irrawaddy dolphin) with 27 individuals and Sousa chinensis (indo-pacific humback dolphin) as many as two individuals. Based on observations, the behavior or movements that are often carried out by the two types of dolphins when they come to the surface water were spyhop and feeding.

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Harahap, Z. A. (2022). DIVERSITY AND DISTRIBUTION OF DOLPHIN IN LANGKAT WATER, NORTH SUMATERA. JECE - Journal of Empowerment Community and Education, 1(3). Retrieved from https://jurnalpengabdian.com/index.php/jece/article/view/727


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