Kannan dolphins paper powerpoint lecture

Kannan dolphins paper powerpoint lecture - 1 Kannan paper 2...

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1 Kannan paper
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2 Word Bank Tributyltin, Dibutyltin, Monobutyltin Biofouling Bottlenose dolphins Bioaccumulation Biomagnification
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3 Tributyltin
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4 Tributyltin TBT weathers and over time breaks down, losing butyl groups TBT DBT MBT
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5 Tributyltin Lowers immune response in dolphins and other aquatic animals
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6 Biofouling Mussels, barnacles, oysters, seaweed, bacteria Anti-fouling paints
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7 Biofouling Slows ship speed Costs $ to clean Excellent fishing at oil rigs
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8 Bioaccumulation and biomagnification Bioaccumulation: many synthetic organic chemicals are soluble in lipids (fats) They pass through cell membranes into the body’s lipids Organisms can’t fully metabolize or excrete these chemicals Small amounts accumulate over time to toxic levels Biomagnification: the multiplying effect of bioaccumulation through the food chain Organisms in the chain have more concentrated amounts of chemicals in their bodies There is no warning until contaminants cause problems
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9 Bioaccumulation and biomagnification What is the difference?
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