据记载：“赫哲不知岁月，问年则数食达巴哈鱼几次以对。”①这话似是想用赫哲人吃达巴哈鱼的次数计年，从而说明他们不知岁月。笔者恰恰有与之相反的理解。上面所提的达巴哈鱼就是今天的大马哈鱼的不同音译，学名鲑鱼，每年一次在固定的季节由大海回游至江中产卵。这种鱼是居 According to the record, “He Zhe did not know the years, but asked several times how many Bahamas were right.” ① This seems to be the number of years that Hezhe people want to eat dahab fish, indicating that they do not know the years. The author exactly has the opposite comprehension. The above mentioned Bahamian saltwater is the transliteration of today’s salmon, the scientific name of salmon, once a year in the fixed season from the sea back to the river to lay eggs. This fish is home