Effect of pollution on Seals

By: Shelbie Bennington

Harbor seals are a very unfortunate because the whole ecosystem was poisoned by mankind with contaminants, trash, sewage, and oil. They are most affected because they do not migrate, but live in same region year-round. Expose to the pollution can cause physical abnormalities, behavioral changes, impairs reduction and causes immune disorders. Marine debris or trash is highly dangerous to seals. For example plastic bags and balloons are often mistaken as food. Each year many marine animals get entangled marine debris; including fishing line, tackle, and fishing nets.
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