남해안 상괭이(Finless porpoise)의 분포
Finless porpoise, Neophocaena phocaenoides, Distribution in the South Sea of Korea
2
조회
0
다운로드
12
인용
0
참고문헌
키워드
초록
To confirm the distributon of finless porpoise, Neophocaena phocaenoides, in the South Sea of Korea, data on bycatch, stranding, and drifting of finless porpoises from 1999 to 2009 were used and a sighting survey was conducted from the R/V Tamgu No. 9 and 10 in June and November, 2009 and March, 2010. The total number of bycaught, stranded, and drifting finless porpoises was 607, with position being known for 186 of these. At the center of Yeosu, there were few position data on bycaught, stranded, and drifting finless porpoises, and data could not confirm the distribution of finless porpoises. Thus, there were limits on the usefulness of bycaught, stranded, and drifting data for confirming the distribution of finless porpoises. In the three sighting surveys, the sighting rate was highest at 0.231 ind./n.m. in the western South Sea in June, 2009. Sighting rate was less than 0.1 ind./n.m. in November, 2009 and March, 2010. This is likely to be due to seasonal migration in western South Sea. All sighting rates in the eastern South Sea were over 0.13 ind./n.m.. According to the results of the sighting survey, finless porpoises are distributed around the islands and inner bay along the path of the research vessel in the South Sea. There were numerous finless porpoises in the offshore areas of Mokpo, Yeosu, Tongyeong, Dadaepo, and Gaduk-do. This study will be utilized as part of a future abundance assessment of finless porpoise in the South Sea of Korea.
Abstract
To confirm the distributon of finless porpoise, Neophocaena phocaenoides, in the South Sea of Korea, data on bycatch, stranding, and drifting of finless porpoises from 1999 to 2009 were used and a sighting survey was conducted from the R/V Tamgu No. 9 and 10 in June and November, 2009 and March, 2010. The total number of bycaught, stranded, and drifting finless porpoises was 607, with position being known for 186 of these. At the center of Yeosu, there were few position data on bycaught, stranded, and drifting finless porpoises, and data could not confirm the distribution of finless porpoises. Thus, there were limits on the usefulness of bycaught, stranded, and drifting data for confirming the distribution of finless porpoises. In the three sighting surveys, the sighting rate was highest at 0.231 ind./n.m. in the western South Sea in June, 2009. Sighting rate was less than 0.1 ind./n.m. in November, 2009 and March, 2010. This is likely to be due to seasonal migration in western South Sea. All sighting rates in the eastern South Sea were over 0.13 ind./n.m.. According to the results of the sighting survey, finless porpoises are distributed around the islands and inner bay along the path of the research vessel in the South Sea. There were numerous finless porpoises in the offshore areas of Mokpo, Yeosu, Tongyeong, Dadaepo, and Gaduk-do. This study will be utilized as part of a future abundance assessment of finless porpoise in the South Sea of Korea.
참고문헌 (15)
- Jefferson TA, "Distribution and abundance of finless porpoise in Hong Kong and adjacent waters of China", Raffles Bull Zool, 10, pp.43~55 (2002)
- Jefferson TA, "Neophocaena phocaenoides", Mamm Sp, 746, pp.1~12 (2004)
- Kasuya T, "Abundance decline in the finless porpoise population in the Inland Sea of Japan", Raffles Bull Zoo, 10, pp.57~65 (2002)
- Kim ZG, "Whales, Dolphins and Porpoises off Korean Peninsula", pp.100~101 (2007), Hanguel Graphics press
- "Statistic Database for bycatch and stranding of cetacean"[URL]
- Report on ecological study of finless propoise in Korean waters, "NFRDI", NFRDI, 121~ (2003)
- Report on ecological study of finless propoise in Korean waters, "NFRDI", NFRDI, 96~ (2004)
- Report on ecological study of finless propoise in Korean waters, "NFRDI", NFRDI, 108~ (2005)
- Park KJ, "Population ecological characteristics and stock assessment of finless porpoise, Neophocaena phocaenoides, in the western sea of Korea", 박사, pp.2006
- Shirakihara K, "A questionnaire survey on the distribution of the finless porpoise, Neophocaena phocaenoides, in Japanese waters", Mar Mamm Sci, 8, pp.160~164 (1992)
- Shirakihara K, "Distribution and abundance of finless porpoise in the Inland Sea of Japan", Mar Biol, 150, pp.1025~1032 (2007)
- Sohn H, "Cruise report of the Korean whale sighting survey in the Yellow Sea, April-May 2001. SC", 53, aper submitted at 53st meeting of the IWC, pp.SC, 2001
- Zhang CI, "Stock assessment and management implications of horse mackerel (Trachurus japonicus) in Korean waters, based on the relationships between recruitment and the ocean environment", Prog Oceanogr, 49, pp.513~537 (2001)
- 장창익, "한국 서해안 상괭이 (Neophocaena phocaenoides)의 분포와 풍도", 한국수산과학회지, 37(2), pp.129~136 (2004), 한국수산과학회
- Yoshida H, "A population size estimate of the finless porpoise, Neophocaena phocaenoides, from aerial sighting surveys in Ariake Sound and Tachibana Bay, Japan", Res Popul Ecol, 39, pp.239~247 (1997)