所有的太平洋鲑类，包括雄性的刚头，在产卵或者是洄游产卵的途中都要经历形态变化。
All Pacific salmon, including male steelhead, undergo changes when spawning or migrating to spawn.
水产养殖在控制条件下，科学、艺术及商业性培植海水或淡水食用鱼或介壳类，如牡蛎、蛤、鲑及鳟鱼。
The science, art, and business of cultivating Marine or freshwater food fish or shellfish, such as oysters, clams, salmon, and trout, under controlled conditions.
水产养殖在控制条件下，科学、艺术及商业性培植海水或淡水食用鱼或介壳类，如牡蛎、蛤、鲑及鳟鱼。
The science, art, and business of cultivating Marine or freshwater food fish or shellfish, such as oysters, clams, salmon, and trout, under control led conditions.
如果另一次大水如预计一般把泄漏的石油又推回了河里，这可能会对河中的鱼类资源构成威胁，蒙大拿州鲑鳟类保护协会执行理事BF称。
If another surge of water pushes oil further into back channels as expected, it could be a potential threat to fisheries, said Bruce Farling, executive director of Trout Unlimited's Montana chapter.
如果另一次大水如预计一般把泄漏的石油又推回了河里，这可能会对河中的鱼类资源构成威胁，蒙大拿州鲑鳟类保护协会执行理事BF称。
If another surge of water pushes oil further into back channels as expected, it could be a potential threat to fisheries, said Bruce Farling, executive director of Trout Unlimited's Montana chapter.
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