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http://dx.doi.org/10.3796/KSFT.2017.53.2.169

Fishing efficiency by vessel capacity of Korean tuna purse seiners operating in the western and central Pacific Ocean  

LEE, Mi Kyung (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science)
LEE, Sung Il (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science)
KIM, Doo Nam (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science)
KU, Jeong Eun (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science)
KWON, Youjung (Distant Water Fisheries Resources Research Division, National Institute of Fisheries Science)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.53, no.2, 2017 , pp. 169-176 More about this Journal
Abstract
Tuna purse seine fishery in the western and central Pacific Ocean (WCPO) has been rapidly developed since early 1980s due to massive investment of major distant water fishing nations, and catch by purse seine fishery operating in the WCPO accounts for nearly half of the world's tuna total catch. As fishing efficiency is reflected by not only improving of individual vessel's capacity but also increasing number of active vessel, it is essential to understand vessel capacity for reliable assessment result on how fishery affects stock status of target species. In this study, fishing efficiency was analyzed by main factors which are representative of vessel capacity using fishing data and vessel information related to Korean tuna purse seine fishery operating in the western and central Pacific Ocean from 1992 to 2014. It showed that fishing efficiency of vessel tends to be higher when having larger vessel tonnage, higher engine power, lower vessel age and larger length of vessel. As for fishing efficiency by set type, CPUE of associated set with floating objects was generally higher than that of free school set, and CPUE of free school set seemed to have a greater effect on engine power and vessel age compared to other factors.
Keywords
Tuna purse seine fishery; Fishing efficiency; Fishing capacity; Vessel capacity;
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Times Cited By KSCI : 1  (Citation Analysis)
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