Salt water ecosystems

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Across
  1. 2. A very small fish that is often used on fishing rods as bait.
  2. 4. Water that is saltier than freshwater but less salty than seawater
  3. 6. A large green reptile that swims underwater
  4. 7. A type of small brown crab that burrows into the mud
  5. 10. A crustacean with blue claws
Down
  1. 1. A flat-spotted fish that has eyes on either side of its body
  2. 3. A small mollusk covered in a hard shell
  3. 5. A shark that is named after a tool to hit nails
  4. 8. A furry mammal with black and white stripes
  5. 9. A long skinny fish with a long snout that is ancient