Science Questions

Are farmed fish more disease-prone?

Sat, 14th May 2011

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Question

Alan Scott, via Facebook asked:

Are farmed fish more disease-prone? Does that increase the likelihood of problems a la chickens and salmonella?

Answer

Kenny -   They are disease prone.  Salmon are pretty robust fish and most of the other cultured fish that we have are cultured because they're not too susceptible to diseases.  Nonetheless, diseases occur anywhere you culture a very large number of organisms in close proximity, you increase the chances that a disease will become an epidemic within that population.  So itís all about population size ultimately.  So the bigger the number of fish, the more risk there is of a disease.

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