Browse > Article
http://dx.doi.org/10.3796/KSFT.2003.39.1.019

The Characteristics of Fishing Ground in the Adjacent Sea of Naro Island (2) - Seasonal Variation of Watermass -  

김동수 (여수대학교)
주찬순 (여수대학교)
박주삼 (여수대학교)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.39, no.1, 2003 , pp. 19-26 More about this Journal
Abstract
In order to investigate the seasonal variation of watermass in the adjacent sea of Naro Island, oceanographic observation on the fishing grounds were carried out by the training vessel of Yosu National University on winter, spring, summer, and autumn in 2000. The results obtained are summarized as follows ; 1) the watermass in the fishing ground were divided into the coastal water (30.0∼31.4psu), mixing water (31.5∼32.9psu) and the offshore water (33.0∼35.0psu) according to the distribution of salinity from T-S diagram plotted all salinity data observed on winter, spring, summer, and autumn in 2000. 2) the ranges of temperature and salinity were from 4.$3\circ_C$ to 10.1$^{\circ}C$ and from 33.1psu to 34.9psu in winter, from 8.$1\circ_C$ to 13.$7\circ_C$ and from 33.1psu to 34.3psu in spring, from 14.5$^{\circ}C$ to 24.$2\circ_C$ and from 30.5psu to 34.1psu in summer, and from 14.$5\circ_C$ to 18.$6\circ_C$ and from 30.1psu to 34.0psu in autumn, respectively. 3) the distribution of watermass in the fishing ground varied largely each seasons, but a general tendency on the distribution was obtained. That is, in winter and spring the offshore water was distributed most widely and in summer the coastal and mixing water occupied the fishing ground but in autumn the mixing water prevailed. 4) variation of temperature and salinity were appeared between the surface and 20m layer in the sea aduacent to Naro Island. Therefore, in the summer the thermocline were made between surface and 20m layer with vertical gradients of 4.$0\circ_C$/7m.
Keywords
Watermass; T-S diagram; Horizontal distribution; Vertical distribution; Seasonal variation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Cho, K. D. and Yang, Y. R (1985) : Environment of the purse-seiner fishing ground in the Tsushima Current, Bull. Korean Fish. Tech. Soc., 21(1), 41-61 (in Korean).   과학기술학회마을
2 Cho, K. D. and Kim, H. Y. (2000) : Relationship between the distribution of water masses and that of demersal fish in the East China Sea in spring. J. Fish. Sci. Tech., 3(1), 14-22.   과학기술학회마을
3 Hwang, D. J., Shin, H. H., and Kim, D. S. (1999) : Distribution of fish by echo sounder and environment of oceanography in southern sea of Korea, Bull. Korean Soc. Fish. Tech., 35 (2), 170-176 (in Korean).   과학기술학회마을
4 Kim, I. O. and Rho, H. K. (1994) : A study on China Coastal Water appeared in the neighbouring seas of Cheju Island, Bull. Korean Fish. Soc., 27(5), 515-528 (in Korean).   과학기술학회마을
5 Park, J. S., Lee, S. S., Kang Y. S., Lee, B. D. and Huh, S. H. (1990b) : The distributions of copepods and chaetognaths in the southern waters of Korea and their relationship to the characteristics of water masses, Bull. Korean Fish. Soc., 23 (3), 245-252 (in Korean).   과학기술학회마을
6 Yang, J. Y, Kim, S. H. and Rho, H. K. (1998) : A study on the temperature fronts observed in the south-west sea of Korea and the northern area of the East China Sea, J. Korean Fish. Soc., 31 (5), 695-706 (in Korean).   과학기술학회마을
7 Lim, K. B. (1981) : Oceanographic conditions in the southern water of Korea and characteristics of fishing ground of pacific mackerel, Bull. Fish. Res. Dev. Agency, 27, 7-24 (in Korean).
8 An, H. S. and Oh, J. S. (1984) : A comparative analysis of the water masses in the East China Sea in summer and winter, J. Korean Earth Sci. Soc., 5(1), 33-44 (in Korean).   과학기술학회마을
9 Nakata, H. (1991) : Coastal processes related to the transport, survival and recruitment of fish larvae, Bull. on Coastal Oceanography, 28 (2) , 195-220 (in Japanese).
10 Park, J. S. and Lee, S. G. (1990a) : Distribution and species composition of phytoplankton in the southern waters of Korea and their relation to the character of water masses, Bull. Korean Fish. Soc., 23 (3), 208-214 (in Korean).   과학기술학회마을
11 Park, J. H and Choi, K. H. (1995) : A study on the formation of fishing ground and the prediction of fishing conditions mackerel, Scomber Japonicus Houttuyn, Bull. Fish. Res. Dev. Agency, 49, 25-35 (in Korean).
12 Kang, C. J. (1974) : A study on the seasonal variation of the water masses in the southern sea of Korea, Bull. Fish. Res. Dev. Agency, 12, 107-121 (in Korean).
13 Kim, D. S. and Rho, H K (1996) : Environmental factors and catch fluctuation of set net grounds in the coastal water of Yosu. 4. Water temperature and salinity and catch fluctuation, Bull. Korean Soc. Fish. Tech., 32(2), 125-131 (in Korean).   과학기술학회마을
14 Kim, D. S (2000) : Seasonal variation of watermass in the central coast of the southern sea of Korea, Bull. Korean Soc. Fish. Tech., 36(2), 105-116 (in Korean).   과학기술학회마을
15 Shin, H. R. (1994) : Analysis of seasonal distribution of water mass in the Korea Strait and the East China Sea, J. Korean Earth Sci. Soc., 15(2), 81-90 (in Korean).   과학기술학회마을
16 Choo, H. S. (2002) : The variations of oceanic conditions and the distributions of eggs and larvae of anchovy in the southern sea of Korea in summer, J. Korean Fish. Soc., 35 (1), 77-85 (in Korean).   과학기술학회마을   DOI   ScienceOn
17 Lee, M. O. (1994) : Numerical model experiments on the tidal current variations due to the bridge piers construction near the straits of Narodo Islands, Bull. Korean Fish. Soc., 27(1), 47-58 (in Korean).   과학기술학회마을
18 Ricker, W. E. (1954) : Stock and Recruitment. J. Fish. Res. Board Can., 11 (5), 559-623.   DOI