鮭魚一生六階段生命之旅 第四階段是洄游：時序初夏，鮭魚憑著味覺中家鄉的味道和星光的指引，向著淡水的 家，逆流而上。 此時牠們停止覓食，外觀轉變為產卵期的深紅色。 靠著體內豐厚的 ...
HowStuffWorks "Introduction to the Salmon Spawn" Many of us have grown up watching nature shows that present dramatic footage of large salmon swimming and leaping heroically upstream to spawn. For many ...
