翻訳と辞書 Words near each other ・ Circle D-KC Estates, Texas ・ Circle dance ・ Circle diagram ・ Circle Dogs ・ Circle Drive ・ Circle Drive Bridge ・ Circle Drive South Bridge ・ Circle Editions ・ Circle Gets the Square ・ Circle graph ・ Circle grid analysis ・ Circle group ・ Circle Health Ltd ・ Circle High School ・ Circle Hits the Flame – Best Off... ・ Circle hook ・ Circle Hot Springs Airport ・ Circle Hot Springs, Alaska ・ Circle Hough Transform ・ Circle Housing Group ・ Circle Icefall ・ Circle II Circle ・ Circle in the Dirt ・ Circle in the Round ・ Circle in the Sand ・ Circle in the Square Theatre ・ Circle in the Square Theatre School ・ Circle jerk ・ Circle jerk (sexual practice) ・ Circle Jerks Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Circle hook ： ウィキペディア英語版 Circle hook A circle hook is a type of fish hook which is sharply curved back in a circular shape. It has become widely used among anglers in recent years because the hook generally catches more fish and is rarely swallowed.〔Prince ED, Ortiz M and Venizelos A (2002) ("A comparison of circle hook and" J" hook performance in recreational catch-and-release fisheries for billfish" ) ''American Fisheries Society Symposium'' 30: 66–79.〕 Since the circle hook catches the fish on the lips at the corner of its mouth, it usually decreases the mortality rates of released fish as compared to J-hook (like O'Shaughnessy or Octopus hooks) which are often swallowed by the fish, causing damage to the gills or vital organs.〔Cooke SJ and Suski CD (2004) ("Are circle hooks an effective tool for conserving marine and freshwater recreational catch-and-release fisheries?" ) ''Aquatic Conservation: Marine and Freshwater Ecosystems'', 14: 299–326. 〕 The circle hook's shape allows it to only hook onto an exposed surface, which in the case of a fish means the corner of its mouth. The fish takes the baited hook and swallows it, and as the hook is reeled in, it is safely pulled out of the fish until it reaches the mouth. At this point it will catch the corner of the mouth, resulting in fewer gut-hooked fish. It is important to not strike (or set the hook) when the fish bites, but rather just reel in. The act of striking while using a circle hook often results in the hook being pulled out of the fish altogether. Studies have shown that circle hooks do less damage to billfish than the traditional J-hooks, yet they are at just as effective for catching billfish. This is good for conservation, since it improves survival rates after release.〔Prince ED, Ortiz M, and Venizelos A (2002) ("A Comparison of Circle Hook and “J” Hook Performance in Recreational Catch-and-Release Fisheries for Billfish" ) ''American Fisheries Society Symposium 30'', pp. xxx–xxx.〕 ==Notes== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Circle hook」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.