Fish diseases and parasites | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-10

This is an audio version of the Wikipedia Article:
Fish diseases and parasites


00:00:55 1 Disease
00:02:37 2 Parasites
00:06:53 3 Cleaner fish
00:08:14 4 Mass die offs
00:09:29 5 Wild salmon
00:13:10 6 Farmed salmon
00:15:42 7 Coral reef fish
00:16:59 8 Aquarium fish
00:18:01 9 Immune system
00:20:25 10 Spreading disease and parasites
00:21:18 11 Eating raw fish
00:23:35 12 See also



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- Socrates



SUMMARY
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Like humans and other animals, fish suffer from diseases and parasites. Fish defences against disease are specific and non-specific. Non-specific defences include skin and scales, as well as the mucus layer secreted by the epidermis that traps microorganisms and inhibits their growth. If pathogens breach these defences, fish can develop inflammatory responses that increase the flow of blood to infected areas and deliver white blood cells that attempt to destroy the pathogens.
Specific defences are specialised responses to particular pathogens recognised by the fish's body, that is adaptative immune responses. In recent years, vaccines have become widely used in aquaculture and ornamental fish, for example vaccines for furunculosis in farmed salmon and koi herpes virus in koi.Some commercially important fish diseases are VHS, ich and whirling disease.