Across
- 2. a mixture of freshwater and saltwater
- 5. aquatic animals with shells
- 7. Ammonia, nitrate and nitrite compose __ compounds generated by aquatic animals
- 11. shellfish may __ and replace their outer shell as they grow
- 12. Toxins are materials that act as __
- 15. an open body of water along a coastline
- 16. measurable change in time or distance of salinity
- 17. oxygen in water is said to be __ oxygen
- 19. parts of a fish that exchange gases by absorbing oxygen from water and releasing carbon dioxide into the water
- 22. an ecological system influenced by brackish or salty water
- 23. water __ is a chemical analysis expressed in parts per million of calcium
- 24. young oysters
- 25. High __ limits the visibility (clarity) in water.
- 26. When a pond rolls over, it changes __ suddenly due to weather
Down
- 1. An aquaculturist understands how and where organism live, eat, and reproduce in __
- 3. animals that live part of their lives in water and part on land
- 4. mineral content of water
- 6. terrestrial plants and animals live on __
- 8. water moves from an area of high concentration to an area of low concentration
- 9. __ fisheries are fish production areas that occur in nature
- 10. Crustaceans have a(n) __, an outer shell
- 13. newly hatched fish
- 14. Saltwater marches are lowlands influenced by _ water
- 18. to lay eggs
- 20. mobile aquatic organism that grow into non-mobile adults
- 21. the removal of fish with __ is called seining.
- 24. Adaptation occurs when traits that increase the chance of __ are passed from one generation to the next