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Fishing performance of hull form renovated tuna purse seiner

선형개조 다랑어 선망선의 조업성능

  • Received : 2015.06.16
  • Accepted : 2015.08.12
  • Published : 2015.08.31

Abstract

In an attempt to find the improvement of the fishing efficiency according to the hull form remodeling for the 3 tuna purse seiner, the Catch-Per-Unit-Effort (CPUE) for that undertaken before (2008) and after (2010) was analyzed. In addition, the CPUE of 6 similar ships operated same period and same fishing ground. As result, it came to verify that the three modified ships had a significant value on the CPUE. An another index for the improvement of fishing efficiency is the rate of reduction of fuel oil consumption for the modified ships. Fuel oil consumption per day in service speed as comparing with the original ships were reduced 2.1%, 4.0% and 5.1% on the modified ship A, B, and C respectively. And each ship's service speed was increased 1.0 kt, 0.6 kt, and 0.4 kt according to the modified ship A, B, and C in due order. In the conclusion, the remodeling job with newly equipped bulbous bow, lengthened slipway and enlarged rudder area were improved fairly much on fuel oil efficiency, the ship's speed, and in the end, that led to the improving fishing efficiency. Hence, the remodeling of tuna purse seiner come to improve not only the fishing performance, but contribute to the reduction of operating cost by saving energy for the fisheries industry.

Keywords

Tuna purse seiner;Catch-per-unit-effort (CPUE);fuel oil consumption;fishing performance;energy saving

Acknowledgement

Supported by : 국립수산과학원

References

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Cited by

  1. A Study on the Improvement of Hull-Form Design for Propulsion Type Change of Net Boat Mounted on Tuna Purse Seiner vol.24, pp.6, 2018, https://doi.org/10.7837/kosomes.2018.24.6.810