Gammarus　 Latin　《animal》

　 The aquatic animal of genus Gammarus, Amphipoda, Crustacea.　Often referred to as scud in the United States, it is called shrimp or fresh water shrimp in Britain.　Gammarus, the correct scientific name, is often used and recognized all over the world.　Refer to color and XX page.

　 Because a considerable amount of carotene is contained in the husks of scud, the meat of trout that often feed on scud turns red.　When a scud dies, it will become pink or red - the color of carotene.　In a suitable environment, a huge number of scud can live in the water and they are active in the evening and especially on a cloudy day.

　 The scud pattern is an effective fly even in rivers and lakes that are not inhabited by scud.　For example, a fishing guide told the author that the standard pattern for fishing for marble trout on the Soca River, Slovenia is made into scud, but scud do not inhabit the Soca River at all.　In fly fishing, it is a very important aquatic animal, and many imitation patterns have been ever made.

【Reference】Guide to aquatic trout foods, 1982.

→Scud (fly), Pink Scud, shrimp