The rivers feed into the Bering Sea and Gulf of Alaska — cold, nutrient-rich waters which support tens of millions of seabirds, and over 400 species of fish, shellfish, crustaceans, and mollusks.
这些河流汇入白令海和阿拉斯加湾这片寒冷而又营养丰富的水域，在这片水域里生活着数千万只海鸟、400多种鱼类、贝类、甲壳类和软体动物。
Concentrations of toxins can be as high as nine million times those found in the waters in which fish and shellfish live.
鱼肉中毒素的浓度可高达鱼类和贝类所生活水域毒素浓度的9百万倍。
Shellfish originated in Japan and were transplanted to beds in the waters of America's Pacific Coast.
蚝 原始于日本，后被移殖到美国太平洋海岸的海底。
Shellfish originated in Japan and were transplanted to beds in the waters of America's Pacific Coast.
蚝 原始于日本，后被移殖到美国太平洋海岸的海底。
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