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Polychlorinated biphenyls --- Fishes --- Environmental aspects --- Effect of pollution on
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Aquatic invertebrates --- Water quality biological assessment
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Polychlorinated biphenyls --- Fishes --- Environmental aspects --- Effect of pollution on
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Aquatic invertebrates --- Water quality biological assessment
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Water quality management --- Water quality --- Stream ecology --- Stream health --- Stream ecology. --- Stream health. --- Water quality. --- Water quality management. --- National Water-Quality Assessment Program (U.S.) --- National Water-Quality Assessment Program (U.S.) --- Northeastern States.
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Water quality --- National Water-Quality Assessment Program (U.S.) --- United States
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Water quality --- Water quality. --- National Water-Quality Assessment Program (U.S.) --- United States
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