@article{oai:mie-u.repo.nii.ac.jp:00005646,
 author = {小林, 裕 and Kobayashi, Hiroshi and 山口, 裕一郎 and Yamaguchi, Yuichiro and 上奥, 秀樹 and Uwaoku, Hideki},
 journal = {三重大学水産学部研究報告 = Bulletin of the Faculty of Fisheries, Mie University},
 month = {Sep},
 note = {application/pdf, 用途にそった漁具とその色彩を考えるための基礎的な知見を得ることを冒的として，水中テレビカメラを用い網地と擬餌のみえ具合の観察を行った。その結果は次のように要約される。
1)網地の視認距離は，水中の明かるさによって相違するが，白色網地の視認距離が最も大きく4～10.7mであった。他の網地は1.7～3.0mであった。
2)網地を下方からみた時、白緑茶などのいずれの色の網地も，光をさえぎる影となって，本来の色にはみえず黒くみえた。上方からの時、網地本来の色が認められた。また、脚の部分に比べて結節の部分が乱立つ。緑色の網地は25mで，モノフィラメントの網地は2mでほとんどみえなくなる。
3)水平方向からみた時，曇天時は晴天時に比べて全体にぼやけてみえる。晴天時緑色、および，モノフィラメント網地は深度がほぼ20mで脚の部分がみえにくくなり，30mで脚も結節もほとんどみえなくなる。また, 茶色の網地は深度がほぼ5mで灰色に変色してみえた。
4)下方からカツオ釣擬餌をみると，黒い小魚が遊泳しているようにみえ，散水したが，みえ具合の変化は認められなかった。また，エビ型のイカ釣擬餌を曳きまわすと，黒い魚が遊泳しているようにみえた。
本研究では海中の網地や擬餌をテレビカメラで撮影し人間がみて判断した。したがって，これを直接魚に適用できないが，今後, 漁具と魚の行動について観察，発展させて行きたい。, The visibility of nets and lures was observed by using an underwater television camera for the purpose of obtaining fundamental knowledge for considering fishing gears according to use and the hues thereof. The results of observation are summarized as follows. 
1) The visual range of the nets were different according to underwater brightness but the visual range of white net was largest and showed 4～10.7m. The visual range of other net were 1.7～3.0m. 
2) When the nets were observed from below, all of the dyed nets such as white,green or brown ones generated light blocking shades and showed a black color different from original colors. When observed from above, the original colors of the net were confirmed. Further,knot parts were conspicuous but the green net almost went out of sight at a depth of 25m and a net made of a monofilament was almost lost to sight at a depth of 2m. 
3) When observed from the horizontal direction, the nets were obscurely looked as a whole on a cloudy day as compared with a fine day. On a fine day,leg parts became hard to see at a depth of about 20m and both of leg parts and knot parts almost went out of sight at depth of 30m. Further, the brown net was looked as if it changed to gray at a depth of about 5m. 
4) The lures of skipjack fishing was looked as if a small black fish was swimming when observed from below and, even if water was sprinkled, no change was confirmed in a noticeable degree. Further,when the shrimp shaped lure of squid fishing was towed, it was looked as if a black fish was swimming. 
 In this study, visibility of the nets or the lures in the sea were judged by observers using the underwater TV camera. Therefore, the results of observation can not be directly adapted to fishes but,after this, we intend to develop the observation on fishing gears and behavior of fishes.},
 pages = {55--67},
 title = {水中テレビカメラによる漁具の観察について},
 volume = {14},
 year = {1987}
}