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oai:fra.repo.nii.ac.jp:02011963 2026-02-10T02:05:54Z 1:6:1724312740334

山口県日本海沿岸域のウルメイワシ棒受網漁業のハロゲン水中集魚灯とLED水中集魚灯の配光特性 Underwater photon distribution for fishing lights（halogen and LED）used for round herring, Etrumeus teres, stick-held dip net fishing along Yamaguchi Prefecture in the Japan Sea 00399635 Kajikawa, Yoritake 梶川, 和武 カジカワ, ヨリタケ Kajikawa 梶川 カジカワ Yoritake 和武 ヨリタケ Ito, Takafumi 伊藤, 貴史 イトウ, タカフミ Ito 伊藤 イトウ Takafumi 貴史 タカフミ 10416464 Mohri, Masahiko 毛利, 雅彦 モウリ, マサヒコ Mohri 毛利 モウリ Masahiko 雅彦 マサヒコ Watanabe, Toshiteru 渡邉, 俊輝 ワタナベ, トシテル Watanabe 渡邉 ワタナベ Toshiteru 俊輝 トシテル open access Halogens; LED; Light; Photon; Herring fishery The spectral photon distributions in sea water from a 3kW halogen fishing lamp and a 2kW LED fishing lamps were investigated in Senzaki Bay. Yamaguchi Prefecture on 7 Dec 2009. Photon intensity in the from 450 to 710nm wavelength range was 250-350 u mol at a depth of 4 m located 5m away in the lateral direction from the halogen lamp. and this was the highest intensity at this sampling point. Photon intensities at depths of 0-4 m and within 10 m from the lamp were similar at the 450nm wavelength (7-10 u mol) and the 540nm wavelength (20-40 u mol. For the LED lamp (output 100%). photon intensity was 380 u mol at the 450nm wavelength and 1500 u mol at the 540nm wavelength at a depth of 4 m and a distance of 5 m in the lateral direction. Photon intensity was 9-10 u mol at the 450nm wavelength and 90-100 u mol at the 540nm wavelength at a depth of 0-4 m and over a distance of 10 m in a lateral direction. These results show that the spectrum characteristics and intensity of LED lamps are better suited for attracting round herring than halogen lamps, suggesting that LED lamps are more efficient for use in stick-held dip net fishing with lights. 水産大学校 National Fisheries University 2011-03-31 jpn departmental bulletin paper https://fra.repo.nii.ac.jp/records/2011963 fishu_k_59_273 https://agriknowledge.affrc.go.jp/RN/2010812075 agriknowledge AN00124678 0370-9361 水産大学校研究報告 Journal of National Fisheries University 59 4 7 273 279 https://fra.repo.nii.ac.jp/record/2011963/files/fishu_k_59_273.pdf application/pdf 3.9 MB 2024-10-11