Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Species Composition and Catch of Korean Tuna Longline Fisheries in the Indian Ocean from 2010 to 2015

인도양 해역 우리나라 원양 연승어업의 어획물 종조성과 어획동향(2010-2015년)

  • Ku, Jeong Eun (Distant Water Fisheries Resources Division, National Institute of Fisheries Science) ;
  • Lee, Sung Il (Distant Water Fisheries Resources Division, National Institute of Fisheries Science) ;
  • Kim, Doo Nam (Distant Water Fisheries Resources Division, National Institute of Fisheries Science)
  • 구정은 (국립수산과학원 원양자원과) ;
  • 이성일 (국립수산과학원 원양자원과) ;
  • 김두남 (국립수산과학원 원양자원과)
  • Received : 2018.05.15
  • Accepted : 2018.06.20
  • Published : 2018.06.30
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Abstract

We analyzed scientific observer data to identify species composition and catch trends of Korean tuna longline fisheries in the Indian Ocean. The data were collected by Korean scientific observers onboard Korean tuna longline fishing vessels in the Indian Ocean from 2010 to 2015. The observers identified 94 species including 5 tuna, 6 billfish, 11 shark, 7 other fish, 5 seabird and 1 sea turtle. Albacore tuna Thunnus alalunga and southern bluefin tuna Thunnus maccoyii were the dominant tuna species, and swordfish Xiphias gladius were the most commonly captured billfish. During the survey periods, 87 seabirds were incidentally bycaught. Black-browed albatross Diomedea melanophris was the dominant seabird species in bycatch, especially in 2010. Cluster analysis showed difference in the species composition of catches between the eastern and western Indian Ocean.

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References

  1. An DH, Kim SS, Moon DY, Hwang SJ and Kwon YJ. 2008. A Summary of the Korean Tuna Fishery Observer Program for the Pacific Ocean in 2007. In: 4th Regular Session of the Scientific Committee on Western and Central Pacific Fisheries Commission. Port Moresby, Papua New Guinea.
  2. Bray JR and Curtis JT. 1957. An ordination of the upland forest communities of southern Wisconsin. Ecol Monogr 27, 325-349. https://doi.org/10.2307/1942268.
  3. Camhi MD, Pikitch EK and Babcock EA. 2009. Sharks of the open ocean: biology, fisheries and conservation. University of Miami, Coral Gables, FL, U.S.A.
  4. Davies SL and Reynolds JE. 2003. Guidelines for developing an at sea fishery observer programme. FAO Fisheries Technical paper 414, 116.
  5. FAO (Food and Agriculture Organization of the United Nations). 2003. Fishstat Plus, Version 2.3. Capture Production Database, 1970-2002, and Commodities Trade and Production Database, 1976-2002. FAO, Rome, Italy.
  6. Gillis DM. 1999. Behavioral inferences from regulatory observer data catch rate variation in the Scotian Shelf silver hake (Merlucius bilinearis) fishery. Can J Fish Aquat Sci 56, 288-296. https://doi.org/10.1139/F98-166.
  7. Gonzalez-Ania LV, Brown CA and Cortes E. 2001. Standardized catch rates for yellowfin tuna (Thunnus albacares) in the 1992-1999 Gulf of Mexico longline fishery based upon observer programs form Mexico and the United States. ICCAT Coll Vol Sci 52, 222-237.
  8. Huang HW and Kwang ML. 2010. Bycatch and discards by Taiwanese large-scale tuna longline fleets in the Indian Ocean. Fish Res 106, 261-270. https://doi.org/10.1016/j.fishres.2010.08.005.
  9. IOTC (Indian Ocean Tuna Commission). 2016. Report of the 19th Session of the IOTC Scientific Committee. Scientific Committee, Mahe, Seychelles.
  10. Kim DN, Lee SI, Kwon YJ, Ku JE Lee MK and An DH. 2016. Korea National Report to the Scientific Committee of the Indian Ocean Tuna Commission, 2016. In: 19th Scientific Committee. Mahe, Seychelles, 1-14.
  11. Moon DY, Hwang SJ, An DH and Kim SS. 2007. Bycatch of sharks in Korean tuna longline fishery. J Korean Soc Fish Technol 43, 329-338. https://doi.org/10.3796/KSFT.2007.43.4.329
  12. NOAA (National Oceanic and Atmospheric Administration). 2017. National Observer program. Retrieved from http://www.st.nmfs.noaa.gov.observer-home/index on Jan 1, 2018.
  13. NFRDI (National Fisheries Research and Development Institute). 2007. Observer Guide Book for Korean Distant Water Fisheries. NFRDI, Busan, Korea.
  14. NFRDI (National Fisheries Research and Development Institute). 2008. Field Guide to Bycatch Species in Korea Distant-Water Fisheries. NFRDI, Busan, Korea.
  15. NFRDI (National Fisheries Research and Development Institute). 2010. Fishes of the Ocean. hanguel Publ Co., Busan, Korea.
  16. Pillai PP and Honma M. 1978. Seasonal and areal distribution of the pelagic sharks taken by the tuna longline in the Indian Ocean. Bull Far Seas Fish Res Lab 16, 33-49.
  17. Romanov EV. 2002. Bycatch in the tuna purse-seine fisheries of the western Indian Ocean. Fish Bull 100, 90-105.
  18. Sim JH. 2005. Oceanographical terms. Academy book, Busan, Korea. 262.
  19. Walsh WA. Kleiber P and McCracken M. 2002. Comparison of logbook reports of incidental blue shark catch rates by Hawaii based longline vessels to fishery observer data by application of a generalized additive model. Fish Res 58, 79-94. https://doi.org/10.1016/S0165-7836(01)00361-7