大梭鱼

例句：

1. 1. The big tuna is a popular seafood choice in many countries.
   大马哈鱼是许多国家受欢迎的海鲜选择。
2. 2. The big tuna is often caught in the deep sea.
   大马哈鱼经常在深海中被捕获。
3. 3. Big tuna can be found in both saltwater and freshwater environments.
   大马哈鱼可以在咸水和淡水环境中找到。