Fisheries and Aquatic Sciences

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Correlation between water temperature and catch at a set net in Yeosu Bay, Korea

  • Choo, Hyosang (Department of Ocean Integrated Science, Chonnam National University)
  • Received : 2020.11.02
  • Accepted : 2020.12.18
  • Published : 2021.01.31
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Abstract

Data for fish species composition and the catch of fish species were obtained from the daily trading records for the period between April and December 2016 to 2018 at the set net fishing grounds in Yeosu Bay, Korea. The annual mean total catch was 195.8 tons, and the dominant species was the Spanish mackerel (Scomberomorus niphonius), which accounts for about 55 percent of the total catch. The catch increased in spring and autumn. Increase in spring is caused by not Spanish mackerel but other fish while the increase in autumn by Spanish mackerel. The distinct increase of the catch in summer, 2017 was due to the new recruitment of small-sized Spanish mackerel, which was probably to be from the fish population hatched in spring in the East China Sea. Our results showed a strong correlation between water temperature and catch fluctuation. The catch increases with the increase in water temperatures, and the periodic pattern of the water temperature and catch fluctuation is more consistent in the offshore waters, in which warm current flows, than in the coast waters.

Keywords

Acknowledgement

I would like to thank the people who provided the daily fishery trading records and Professor Kyung-hoon Lee and Mr. Ji-sang Kim of Chonnam National University who helped with data processing.

References

  1. Cha BY. Composition and catch variation of fisheries resources by set net in the Mizo fishing ground off Namhae Island. Korean J Ichthyol. 2009;21:191-9.
  2. Choo HS. The variations of oceanic conditions and the distributions of eggs and larvae of anchovy in the Southern Sea of Korea in summer. Korean J Fish Aquat Sci. 2002;35:77-85. https://doi.org/10.5657/KFAS.2002.35.1.077
  3. Choo HS. Numerical simulation of tidal currents and anchor-induced suspended solids dispersion around Dolsan Island. Korean J Hydrography. 2013;2:27-38.
  4. Choo HS, Kim DS. The effect of variations in the Tsushima warm currents on the egg and larval transport of anchovy in the southern sea of Korea. Korean J Fish Aquat Sci. 1998;31:226-44.
  5. Choo HS, Yoon EC. Temporal and spatial variations in sea surface temperature around Boryeong off the west coast of Korea from 2011-2012. J Korean Soc Mar Environ Saf. 2017;23:497-512. https://doi.org/10.7837/kosomes.2017.23.5.497
  6. Gong Y. A study on the South Korean coastal front. J Korean Soc. Oceanogr. 1971;6:25-36.
  7. Griffiths RW, Pearce AF. Instability and eddy pairs on the leeuwin current south of Australia. Deep Sea Res Part 1 Oceanogr Res Pap. 1985;32:1511-34. https://doi.org/10.1016/0198-0149(85)90101-3
  8. Hwang SD, Kim JY, Kim JI, Kim ST, Seo YI, Kim JB, et al. Species composition using the daily catch data of a set net in the coastal waters off Yeosu, Korea. Korean J Ichthyol. 2006;18:223-33.
  9. Inoue T, Wada Y, Tojima T, Takeno K. Age and migration of the japanese spanish mackerel (Scomberomorus niphonius) in the coastal waters of Kyoto prefecture. Bull Kyoto Inst Ocean Fish Sci. 2007;29:1-6.
  10. Japan Society of Fisheries Oceanography. Introduction to fisheries oceanography: continuous utilization of marine biological resources. Tokyo: Kyudansya Press; 2014. p.80-82. Japanese.
  11. Jeong HH, Han KH, Kim CC, Yoon SM, Seo WI, Hwang SY, et al. Fluctuations in abundance and species composition of fishes collected by both sides fyke net in Dol-san, Yeosu. Korean J Ichthyol. 2005;17:64-72.
  12. Kang YQ. Warming trend of coastal waters of Korea during recent 60 years (1936-1955). J Fish Sci Technol. 2000;3:173-9.
  13. Kim DS. Environmental factors and catch fluctuation of set-net grounds in the coastal waters of Yeosu. Bull Korean Fish Technol Soc. 1993;29:94-108.
  14. Kim DS, Lee CC, Kim DA, Park YS. The characteristics of a fishing ground at Yeosu Bay-pound net fishing ground. Bull Korean Fish Technol Soc. 1989;25:44-53.
  15. Kim DS, Lee CC, Park YS. Oceanographic condition and fishing condition of the set net fishing ground in Yeosu Bay. Bull Korean Fish Technol Soc. 1988;24:150-7.
  16. Kim DS, Rho HK. Environmental factors and catch fluctuation of set-net grounds in the coastal waters of Yeosu. 1. Oceanographic condition in the vicinity of set-net ground. Bull Korean Fish Technol Soc. 1993;29:1-10.
  17. Kim DS, Rho HK. Environmental factors and catch fluctuation of set-net grounds in the coastal waters of Yeosu: 2. Sea water circulation in the vicinity of set-net ground. Bull Korean Fish Technol Soc. 1994;30:142-9.
  18. Kim DS, Rho HK. Environmental factors and catch fluctuation of set-net grounds in the coastal waters of Yeosu. 3. The quantity of phytoplankton and catch fluctuation. Bull Korean Fish Technol Soc. 1995;31:15-23.
  19. Kim DS, Rho HK. Environmental factors and catch fluctuation of set-net grounds in the coastal waters of Yeosu. 4. water temperature and salinity and fluctuation of catch. Bull Korean Fish Technol Soc. 1996;32:125-31.
  20. Kim HY, Lim YN, Song SH, Kim YH. Understanding the migration path of Spanish mackerel Scomberomorus niphonius using catch distributions. Korean J Fish Aquat Sci. 2016;49:376-84. https://doi.org/10.5657/KFAS.2016.0376
  21. Kim HY, Song SH, Lee SK, Kim JB, Yoo JT, Jang DS. Dominant causes on the catch fluctuation of a set net fishery in the mid-south of Korea. J Korean Soc Fish Technol. 2013;49:250-60. https://doi.org/10.3796/KSFT.2012.49.3.250
  22. National Institute of Fisheries Science. Korean coastal and offshore fishery census. Busan, Korea: National Institute of Fisheries Science; 2004. p.259.
  23. Nishikawa T, Nakamura Y, Katayama S. Age composition of Japanese Spanish Mackerel Scomberomorus niphonius (Cuvier 1832) caught off Hygo prefecture, south-western Sea of Japan, as determined by the otolith cross-section method. Asian Fish Sci. 2014;27:248-59.
  24. Qiu B, Imasato N, Awaji T. Baroclinic instability of buoyancy-driven coastal density currents. J Geophys Res. 1988;93:5037-50. https://doi.org/10.1029/JC093iC05p05037
  25. Shin SS, Lee SH, Han KH. Fluctuation in abundance and species composition of fishes collected by trap set net in Dolsan, Yeosu. Inst Coast Environ Res (Chonnam National University). 2017;17:67-79.
  26. Yeosu City. Fisheries information. Industry and economy, Yeosu City [Internet]. 2020 [cited 2020 Sep 10]. http://www.yeosu.go.kr