红鲑鱼终生只产卵一胎。

Sockeye salmon are semelparous.

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许多洄游到Fraser河的红鲑，包括降河洄游的幼鱼和溯河洄游的成鱼，都会经过位于布劳顿群岛的约24个鲑鱼养殖场。

Many migrating Fraser sockeye (both outbound as young smolts and inbound as mature fish) pass some two-dozen salmon farms in the Broughton Archipelago.

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而这正是红鲑鱼们所面临的情况——它们通常是蓝色和银色的，但产卵之前它们就会变成红色和绿色的。

That's exactly what the Sockeye Salmon does - normally blue and silver they turn red and green before spawning.

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