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Runnoff and other man-made probelms have increased the number of the crown-of thorns starfish. These large increases in crown-of-thorns starfish started in the early 1960's. Every 15 years there has been another large increase in this starfish.

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15y ago

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Humans can positively affect starfish by creating protected marine areas, reducing pollution, and supporting conservation efforts. Negatively, humans can harm starfish through overfishing, habitat destruction, and pollution from activities such as coastal development and oil spills.

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11mo ago
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Q: How do humans affect starfish positively and negatively?
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