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A Study on the Ghost Fishing of the Plastic Sea-eel Pot - Investigation of Actual Condition on the Ghost Fishing -

플라스틱 붕장어 통발의 Ghost Fishing에 관한 연구 - Ghost Fishing의 실태조사 -

  • Published : 2002.02.01

Abstract

This study was conducted to estimate the number of lost or abandoned plastic sea-eel pots and investigate the actual condition on the ghost fishing happened from the pots during the period of August 1996 and January 2002 In the Southern Sea of Korea. The average number of lost or abandoned sea-eel pots in the investigated sea area were 34 ea/$\textrm{km}^2$ and was the lowest as 5 ea/$\textrm{km}^2$ Sea Area code # 113 and was the highest as 94 ea/$\textrm{km}^2$ in the Sea Area code #106. Pots number in accordance with water depth was the highest as 89 ea/$\textrm{km}^2$ on the level of 61 ~70m and there was no collection for the sea-eel pot over 130m water depth. The average catch rate of ghost fishing happened from the lost or abandoned pots was 8.1% and the highest rate was 25% in the Sea Area code #224 and there were no catches in the Sea Area code # 92, 110, 243 and 253. The number of lost or abandoned sea-eel pots continued ghost fishing were estimated as 14.2 ea/$\textrm{km}^2$ in the Sea Area code # 99 and was the highest. Catch rate of ghost fishing according to water depth was the highest as 23.5% on the level of 71~80 m, and the number of lost or abandoned sea-eel pots continued ghost fishing were estimated as 12.7 ea/$\textrm{km}^2$ on the level of 81~90m and was the highest. Length distribution of sea-eel which were caught from ghost fishing was 25.5~66.0$\textrm{cm}^2$

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