The biologists sit in streamside counting towers, study sonar, watch from aeroplanes, and talk to fishermen.

生物学家们会待在河边的计数塔中，研究声纳，从飞机上完成观察活动，以及与渔夫交谈。

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Streamside situation like fangs as crisscross varies, cannot see the water source.

溪岸的形势象犬牙般交错参差，无法看到水的源头。

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Not surprisingly, one study found that growth of sitka spruce, the dominant streamside tree in the area, was three times greater along salmon streams than along nonsalmon streams.

另一项研究则发现，该地区的优势溪岸树种美国西川云杉，在有鲑鱼溪流的地方，长得比没有鲑鱼溪流的地方还大三倍。

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Not surprisingly, one study found that growth of sitka spruce, the dominant streamside tree in the area, was three times greater along salmon streams than along nonsalmon streams.

另一项研究则发现，该地区的优势溪岸树种美国西川云杉，在有鲑鱼溪流的地方，长得比没有鲑鱼溪流的地方还大三倍。

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