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위성전자표지와 해양환경자료를 이용한 방어(Seriola quinqueradiata) 이동경로 추적 연구
김창신 ( Changsin Kim ),양지관 ( Jigwan Yang ),강수진 ( Sujin Kang ),이승종 ( Seung-jong Lee ),강수경 ( Sukyung Kang ) 한국수산과학회 2021 한국수산과학회지 Vol.54 No.5
Yellowtail Seriola quinqueradiata tagged with a Pop-up Satellite Archival Tag (PSAT) was released off the coast of near the Moseulpo, Jeju Island and the ecological data during about 40 days was obtained. However, it is difficult to determine the spatial location of underwater ecological data. To improve the accuracy of estimating the Yellowtail migration route using temperature, suitable background field of the oceanic environment data was evaluated and used for input data. After developing of the tracking algorithm for migration route estimation, three experiment cases were estimated with ecological data among the surface layer, the mixed layer, and the whole water column. All tracking experiments move from western to eastern Jeju Island. Additionally, tracking experiment using 3D ocean numeri-cal model reveal that it is possible to estimate the migration route using the fish ecological data of the entire water column. Therefore, using a large number of ecological data and a high-accuracy ocean numerical model to estimate the migration route seems to be a way to increase the accuracy of the tracking experiment. Moreover, the tracking algorithm of this study can be applied to small pelagic fishery using small archival electronic tags to track the migra-tion route.
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