目孔(Sinbrama macrops)喜好生活在緩流性的水域，因此基隆河從猴峒到瑞芳都有分布。這天我們一行人到瑞芳國芳橋一帶作釣，成績不錯！而且此地的目孔還真是不挑，天色亮時，只要稍微加重的若蟲毛鉤即可，閃亮的串珠頭毛鉤則更佳；天色暗時，連乾毛鉤也吃的很兇！Large-eye (Sinbrama macrops) prefers to live in the river where the flow is slowly. And there is great number of population which distributes from Houdong to Rueifang in Keelung River. One day of the summer, we a couple of friends went to Rueifang fish for Large-eye.The Large-eye was not selective. When the sky was bright, nymph with a bit of weight is okay for fishing Large-eye, and the bright beadhead fly was much better. When the sky was dark, Large-eye took dry fly heavily.
此外，從過去作調查研究的觀察經驗，目孔具有群游性，並且會依據體型大小自動區分群落，因此常有同一標點連續釣上的魚，其體型大小非常接近的現象。
According to the past field work experience, Large-eye usually gather by size and swim in a shoal. Therefore, it is a common circumstance that the fish in the same size which has been caught in the same point. 
基隆河中游的目孔、闊嘴族群已成為優勢魚種，而此地的水質較十年前已逐漸改善，惟可惜的是，家庭廢水的影響還是很大，另外張網、灑網捕魚的問題也還不能有效解決，這是對釣場比較大的傷害。
Large-eye and Thickhead chub have become the ascendant fishes in Keelung River. Although the water quality has been much better than ten years ago, the wastes from households still need to be improved. In addition, the illegal netting activity also causes negative impact to nature.
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