Ocean Life and Change

Across

1. Shellfish often found in coastal waters

3. Common freshwater fish often farmed worldwide

5. Large marine mammal known for spouting

10. Replace or take the place of

Down

2. Gem formed inside an oyster shell

4. Doubled in size or amount

6. Eight armed sea creature with ink defense

7. Large marine mammal with tusks

8. Unexpected stroke of good luck

9. Golden fish found in warm waters