Question: Which population numbers do you trust to be closer to the actual pop- ulation size, the values obtained during sonar surveys or visual sur-

Which population numbers do you trust to be closer to the actual

Which population numbers do you trust to be closer to the actual pop- ulation size, the values obtained during sonar surveys or visual sur- 3. veys? Explain.

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Which population numbers do you trust to be closer to the actual pop- ulation size, the values obtained during sonar surveys or visual sur- 3. veys? Explain.

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