Stress and Disease

2. The number of fish in a known amount of water.
6. Storing feed in a cool dry place reduces this.
7. Increases the population of some pathogens. (2 words)
8. This type of stress along with physical injury are the primary cause of disease in fish.
12. Ammonia and nitrites. (2 words)
15. The first physcial barrier to disease organisms.
16. Fish with a high concentration of parasites are likely to become diseased. (2 words)
19. Water-balance in fish.
22. Giving fish too much food. (2 words)
24. Mucus also _________ the fish so that it can move through the water with less resistance.
25. Compounds formed in the body to fight specific proteins or organisms.

1. This completey stops the activity of the immune system. (2 words)
3. _____ and skin function as a physcial barrier.
4. Any stress causes _________ changes which decreases the inflammatory response.
5. This type of environment reduces the build up of antibodies.
9. The physical or chemical factors that cause bodily reactions that may contribute to disease.
10. The best way to reduce disease and parasites in fish. (2 words)
11. defense used by fish against invading diseas organisms. (2 words)
13. Fish will recover from stress when this water quality factor is high.(2 words)
14. The natural immune response by the cells to foreign proteins.
17. The number of fish that a known amount of water can support. (2 words)
18. When fish absorb too much water. (2 words)
20. The practice of ensuring that equipment, ponds, and tanks are clean.
21. Organism that causes disease.
23. The types of nets that reduce injury and scales loss during handling.
26. Maybe added to transport water to minimize osmotic stress.