Question

two
diseases of fishes and their causative agent​

Answer 1

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Disease is a prime agent affecting fish mortality, especially when fish are young. Pathogens which can cause fish diseases comprise: viral infections, such as esocid lymphosarcoma found in Esox species. bacterial infections, such as Pseudomonas fluorescens leading to fin rot and fish dropsy.

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Answer 2

Disease is a prime agent affecting fishmortality, especially when fish are young. ... Pathogens which can cause fish diseasescomprise: viral infections, such as esocid lymphosarcoma found in Esox species. bacterial infections, such as Pseudomonas fluorescens leading to fin rot and fish dropsy.