한수지 51(5), 600-605, 2018 Short Communication Korean J Fish Aquat Sci 51(5),600-605,2018 소셜미디어정보를활용한제주도남방큰돌고래 (Tursiops aduncus) 의분포현황파악 김현우 * 이다솜 손호선 국립수산과학원고래연구센터 Distribution Status of Indo-Pacific Bottlenose Dolphin Tursiops aduncus in the Jeju Island Based on Social Media Data Hyun Woo Kim*, Dasom Lee and Hawsun Sohn Cetacean Research Institute, National Institute of Fisheries Science, Ulsan 44780, Korea The Indo-Pacific bottlenose dolphins Tursiops aduncus are the only cetacean species that can be observed visually on coastal areas of Jeju Island and regarded as one of valuable tour resources. We attempted to figure out location and timing information of the dolphin sightings collected from two major social media, Naver Café and Instagram. 142 of dolphin sighting information were derived from 2,501 dolphin related postings on Naver Café between 2004 to 2017. 292 informative postings also were found on Instagram through hashtag searching. The number of posts about dolphin sighting was not frequent until 2014. Since 13 posts were found in 2014, dramatic increase of the sighting numbers was accelerated as 38 in 2015, 93 in 2016 and 269 in 2017. 195 (45.7%) from coastal area of Daejeong-eup, south-western part of the Island, were posted. The number of dolphin sightings also high from Gujwa-eup(n=50, 11.7%), Hangyeong-myeon (n=49, 11.5%), Seongsan-eup (n=38, 8.9%) and Seogwipo-si (n=34, 8.0%). Our results show that social media data has a high potential to be used as a data source for study of distribution pattern of the dolphins. Key words: Indo-Pacific bottlenose dolphin, Jeju Island, Social Media, Tourist 서론 (Trusiops aduncus) (Jefferson et al., 2008). (Wang, 2018). 500 m, (Kim et al, 2015).. 2008 5,822,017 2017 15,149,608 (Jeju Tourism Organization, 2010; JRI, 2018)., 56.0% (4.4%) (2017, Jeju Special Self-Governing Province, 2018). (Gössling, 2017)., (Xiang and Gretzel, 2010; Jacobsen https://doi.org/10.5657/kfas.2018.0600 Korean J Fish Aquat Sci 51(5), 600-605, October 2018 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial Licens (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Received 20 September 2018; Revised 29 September 2018; Accepted 4 October 2018 *Corresponding author: Tel: +82. 52. 270. 0930 Fax: +82. 52. 270. 0913 E-mail address: hyunwoo.kim@korea.kr Copyright 2018 The Korean Society of Fisheries and Aquatic Science 600 pissn:0374-8111, eissn:2287-8815
제주도남방큰돌고래분포현황 601 and Munar, 2012)., 2.0 (Kaplan and Haenlein, 2010).,, (Di Minin et al., 2015; Roberge et al., 2014; Willemen et al., 2015; Wood et al., 2013)..,... 재료및방법., 2.. 5,000 (578,825, 2004. 4. 15. ) (136,558, 2010.5.6. ) 2017 12 31. (SNS) 2010 10 6, (#) #. 2018 8 31 119,070.,, 2017 12 31....,,,,,,,,,,. 결과 2,297, 204 2,501. 95, 47 142. 7 (4.9%) 135 (95.1%). 446, 10, 694 1,150. 348 292 (83.9%). 2008 2010 2013 2014. 427, 2014 1-5 2014 13, 2015 38, 2016 93, 2017 269. (Table 1, Fig. 1).. 195 45.7%. 50 (11.7%), 49 (11.5%), 38 (8.9%), 34 (8.0%) (Table 1, Fig. 2). 5 57, 9 55, 6 54. 9 1 11 4 (Fig. 3). 9-10 11. 11 (Fig. 3).
602 김현우ㆍ이다솜ㆍ손호선 Number of Dolphin sightings 300 250 200 150 100 50 0 Fig. 1. Number of Indo-Pacific bottlenose dolphin Tursiops aduncus sightings by year derived from Naver café and Instagram. 고찰 Instagram Naver Café ~2010 2011 2012 2013 2014 2015 2016 2017 Year (Jeju-do, 1995).. (Tursiops truncatus) 2010 (Kim et al., 2010). 2014 1-5. 7 2013, 2015, 2017 (Seoul Zoo, 2015; MOF, 2016; Seoul Zoo, 2017).. 45.7% 11.7%. Kim et al. (2015) (point sighting survey)...,.,,. Table 1. Number of dolphin Tursiops aduncus sightings by area and years derived from Naver café and Instagram Area ~2010 2011 2012 2013 2014 2015 2016 2017 Total Jeju-si 2 2 2 6 Aewol-eup 1 1 1 7 3 4 17 Hallim-eup 1 6 7 Hangyeong-myeon 2 2 9 36 49 Daejeong-eup 1 1 4 5 32 152 195 Andeok-myeon 6 6 8 20 Seogwipo-si 1 3 6 5 19 34 Namwon-eup 1 1 2 Pyoseon-myeon 1 1 2 Seongsan-eup 1 1 1 1 6 14 14 38 Gujwa-eup 1 2 6 18 23 50 Jocheon-eup 1 1 2 3 7 Total 4 4 1 5 13 38 93 269 427
제주도남방큰돌고래분포현황 603 33.6 Jocheon Gujwa Latitude (N) 33.4 Aewol Hallim Hangyeong Andeok Daejeong Seogwipo Jeju Namwon Pyoseon Seongsan 33.2 Derived from Instagram Derived from Naver Cafe 33 126 126.2 126.4 126.6 126.8 127 Longitude (E) Fig. 2. Distribution status of Indo-Pacific bottlenose dolphins Tursiops aduncus around the Jeju Island, data derived from Naver café and Instagram. Number of Dolphin sightings 60 50 40 30 20 10 Daejeong-eup Gujwa-eup Hangyeong-myeon Seongsan-eup Seogwipo-si Etc. 0 1 2 3 4 5 6 7 8 9 10 11 12 Month Fig. 3. Monthly change of the dolphin Tursiops aduncus sightings by area. 60 2015-2017 Daejeong-eup Gujwa-eup (r=0.743) (r=-0.798) 50 Hangyeong-myeon. Seongsan-eup Seogwipo-si umber of Dolphin sightings 40 30 20 Etc...
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