marine crossword

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Across
  1. 4. ship wrecked at the mouth of moore river?
  2. 6. measurement used on water instead of kilometres
  3. 7. non living factors
Down
  1. 1. crahsed on the WA coast in june 1712
  2. 2. technique used to farm marine animals
  3. 3. most farmed fish in the world
  4. 5. the island of shark bay?