マグロ延縄漁業に用いられる鉤素の光学的特性

DOI 日本農学文献記事索引 Web Site 被引用文献1件

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タイトル別名
  • Optical Characteristics of Snood in Tuna Longline Fishing.
  • マグロ延縄漁業に用いられる鉤素の光学的特性〔英文〕
  • マグロ ハエナワ ギョギョウ ニ モチイラレル ツリモト ノ コウガクテキ トク

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抄録

The luminance and the spectral luminance from different snood materials in tuna longline fishing were measured to compare their optical characteristics with the background luminance constant. The luminance variation coefficient and inherent contrast of the zinc-plated wire were several times larger than that of nylon monofilament. The volumes of stimulation strengths reaching the tuna eye from nylon monofilament and red-colored wire smaller than those from zinc-plated and blue-colored wire were computed using spectral luminance reflectance, spectral irradiance and tuna spectral sensitivity. Since fish detect the presence of fishing gear by visual sense, it is considered that differences in optical characteristics between snood materials should have an effect on the tuna catch rate.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 57 (8), 1437-1443, 1991

    公益社団法人 日本水産学会

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