What Are the Common Fish Diseases? Symptom Identification and Prevention and Treatment Methods
Common Fish Diseases
(1) Viral diseases: Viruses can only grow and reproduce inside the cells of plants or animals. Once they leave a living cell, they behave like inanimate matter, but they can attach to cells, destroy the cell membrane, allow the virus's genetic material to enter the cell, then control the metabolic activities within the host cell and use the nutrients of the parasitized cell to make new viruses.
(2) Bacterial diseases: Bacteria are single-celled organisms. Their appearance can be seen under a high-power microscope. They have a cell wall that does not contain cellulose and reproduce by binary fission.
(3) Fungal diseases: The pathogens causing fungal diseases are mostly fungi. The body of a fungus does not contain chlorophyll, is formed by connected hyphae, and has no roots, stems or leaves.
(4) Protozoan diseases: Protozoa are single-celled organisms. Most of them are not parasitic, and only a small number cause disease.
(5) Trematode diseases: These diseases are caused by gill flukes or skin flukes. Trematodes have a mouth but no anus.
(6) Crustacean diseases: Crustaceans are one type of arthropod. They have a hard exoskeleton and jointed appendages, and they can attack goldfish and cause disease.
(7) Diseases caused by chemical substances: These diseases are caused by certain harmful chemicals in the water.
(8) Genetic diseases: This type of disease occurs because an individual has a gene that causes the disease, so it cannot be treated.
(2) Bacterial diseases: Bacteria are single-celled organisms. Their appearance can be seen under a high-power microscope. They have a cell wall that does not contain cellulose and reproduce by binary fission.
(3) Fungal diseases: The pathogens causing fungal diseases are mostly fungi. The body of a fungus does not contain chlorophyll, is formed by connected hyphae, and has no roots, stems or leaves.
(4) Protozoan diseases: Protozoa are single-celled organisms. Most of them are not parasitic, and only a small number cause disease.
(5) Trematode diseases: These diseases are caused by gill flukes or skin flukes. Trematodes have a mouth but no anus.
(6) Crustacean diseases: Crustaceans are one type of arthropod. They have a hard exoskeleton and jointed appendages, and they can attack goldfish and cause disease.
(7) Diseases caused by chemical substances: These diseases are caused by certain harmful chemicals in the water.
(8) Genetic diseases: This type of disease occurs because an individual has a gene that causes the disease, so it cannot be treated.