...For research purposes, several different mesh sizes may be used in combination. There is also a type of three-mesh trammel net, which has a fine mesh net with two or three times larger nets attached to both sides. It is very efficient for catching fish and is often used as a bottom gill net along the coasts of various regions, but because it is so efficient, its use is prohibited in many areas. *Some of the terminology explanations that mention "trammel net" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…調査目的のために何種類かの網目のものを組み合わせて使うことがある。また三枚網trammel netといって細かい目の網の両側にその2~3倍の大きさの網をつけたものもある。漁獲の効率がひじょうによく各地の沿岸で底刺網として使われることが多いが,効率がよすぎるため,使用を禁止している地域も多い。… ※「trammel net」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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