- Are there any viruses that affect catfish?
- What is Channel Catfish virus disease?
- Is there a herpes virus in catfish?
- What is a reservoir of virus in catfish?
- What are the common bacterial diseases in fish?
- How is Channel Catfish virus (Ictalurus punctatus) diagnosed?
- What is Channel Catfish virus disease (CCV)?
- What is the capsid architecture of Channel Catfish virus (channel catfish herpesvirus)?
- What are the most common fish viruses in aquaculture?
- Is vibriosis common in freshwater fish?
- What factors influence the number and type of microorganisms found in seafood?
- What determines the composition of microbes in the fish gut?
- Which bacteria are linked to aquatic environments?
- What bacteria causes septicemia in fish?
- Are You at risk for food poisoning from fish?
- What type of fish is affected by CCV?
- What is Channel Catfish virus disease (CCVD)?
- How does age affect susceptibility to Channel Catfish virus (CCV) challenge?
- What is recombinant Channel Catfish virus (Ictalurid herpesvirus 1)?
- Why are viral diseases of fish considered exotic diseases?
- Are there any viral diseases in aquaculture?
- What is Channel Catfish virus?
- What causes mycobacteriosis in fish?
- What is the pathophysiology of vibriosis?
Are there any viruses that affect catfish?
Affecting catfish in particular, it is very common in the USA and in other parts of the world. Among viruses that attack fishes in fish farms are those from the genera Birnaviridae, Rhabdoviridae, and Iridoviridae, which can all cause several serious conditions.
What is Channel Catfish virus disease?
Fish viruses and fish viral diseases., xii + 476 pp. Wolf K; Darlington RW, 1971. Channel catfish virus: a new herpesvirus of ictalurid fish. Journal of Virology, 8 (No.4):525-533. Wolf K; Herman RL; Carlson CP, 1972. Fish viruses: histopathologic changes associated with experimental channel catfish virus disease.
Is there a herpes virus in catfish?
The genus Ictalurivirus contains channel catfish virus, which serves as a prototype for approximately 30 alloherpesviruses that represent a genetically distinct and diverse virus lineage. The only other assigned species is cyprinid herpesvirus 3 that contains the herpesvirus that occurs in koi and common carp.
What is a reservoir of virus in catfish?
Reservoirs of virus are the overtly and the dormantly infected fish. Transmission is mostly horizontal but the claimed vertical or ‘egg associated’ transmission from carrier brood fish to eggs and fry seems to be important for virus survival and for perpetuation of infection in catfish culture.
What are the common bacterial diseases in fish?
Bacterial diseases in fish 1) Furunculosis 2) Columnaris 3) Dropsy 4) Vibriosis 5) Tuberculosis 6) Bacterial gill disease 7) Fin rot/tail rot. 4. Common symptoms lethargic swimming Loss of appetite Respiratory distress Jumping from the water Colour of gill changed Fins become frayed. 5.
How is Channel Catfish virus (Ictalurus punctatus) diagnosed?
Detection of channel catfish virus in channel catfish, Ictalurus punctatus (Rafinesque): use of a nucleic acid probe. Journal of Fish Diseases, 8 (5):417-424.
What is Channel Catfish virus disease (CCV)?
Courtesy of Dr. Ruth Francis-Floyd. Channel catfish virus (CCV) disease is an acute, virulent herpesvirus infection of fry and fingerling channel catfish that can cause mortality of >80% at water temperatures ≥25°C in small fish (≤5 cm). As fish age, mortality decreases, and clinical infection in fish >1 year old is rare.
What is the capsid architecture of Channel Catfish virus (channel catfish herpesvirus)?
The capsid architecture of channel catfish virus, an evolutionary distinct herpesvirus, is largely conserved in the absence of discernible sequence homology with herpes simplex virus. Virology, 215:134-141. Bowser P; Plumb JA, 1980.
What are the most common fish viruses in aquaculture?
Many of these are endemic among native populations and opportunistically spill-over to infect fish in aquaculture facilities. Other well-characterized fish viruses (e.g., channel catfish virus, Onchorhynchus masou virus) can also cause significant losses in aquaculture but do not seem to be increasing significantly in host or geographic range.
Is vibriosis common in freshwater fish?
Vibriosis is a potentially serious, common systemic disease of many cultured, aquarium, and wild marine and estuarine fishes; it is less common in freshwater fish. Three genera of the family Vibrionaceae are frequently associated with infection in fishes: Vibrio, Listonella, and Photobacterium.
What factors influence the number and type of microorganisms found in seafood?
Geographical region, season, and, for fish, whether they are pelagic (surface to mid-water) or demersal (bottom) feeders will influence the numbers and types of microorganisms present on freshly caught seafood.
What determines the composition of microbes in the fish gut?
The composition of the community of microbes in the fish gut is not constant and may change with nutritional status, age, surrounding water and other environmental conditions (Ringø et al. 2003 ). However, the microbial balance in GIT is crucial in response to host metabolism, disease prevention, and physiology.
Which bacteria are linked to aquatic environments?
The aim of this review was to describe and discuss the five most relevant bacterial genera and species linked to aquatic environments— Vibrio spp., Listeria monocytogenes, Yersinia spp., pathogenic Salmonella serovars, and Clostridium botulinum —causing human foodborne diseases. Fish plays an important role in the human diet.
What bacteria causes septicemia in fish?
Aeromonas hydrophila is the bacterial species responsible for the fatal Bacterial Hemorrhagic Septicemia in aquarium fish. This particular bacterium targets both saltwater and freshwater species. BHS is usually treated with antibiotics. Typically, Bacterial Hemorrhagic Septicemia targets the internal organs.
Are You at risk for food poisoning from fish?
Additionally, some individuals are at a higher risk simply because they eat substantially more fish than others. If you are pregnant, a young child, an older adult, or someone with a weakened immune system, to avoid food-borne illness from bacteria (often called “food poisoning”) you are advised not to eat:
What type of fish is affected by CCV?
Once CCVD occurs in a fish population, survivors of the disease become covert carrier fish. Channel catfish and the closely related blue catfish ( Ictalurus furcatus) have been the only fish found to be infected with CCV, and variations in susceptibility to CCV have been recorded depending on fish strain.
What is Channel Catfish virus disease (CCVD)?
Channel catfish virus disease (CCVD) is caused by a herpesvirus designated Ictalurid herpesvirus 1 by the International Committee on Taxonomy of Viruses, but the commonly used name is channel catfish virus (CCV). CCV affects channel catfish ( Ic
How does age affect susceptibility to Channel Catfish virus (CCV) challenge?
Susceptibility of channel catfish fry to channel catfish virus (CCV) challenge increases with age. Diseases of Aquatic Organisms, 62:27-34. Hanson LA; Thune RL, 1993.
What is recombinant Channel Catfish virus (Ictalurid herpesvirus 1)?
Recombinant channel catfish virus (Ictalurid herpesvirus 1) can express foreign genes and induce antibody production against the gene product. Journal of Fish Diseases, 19 (2):121-128; 18 ref.
Why are viral diseases of fish considered exotic diseases?
Because many viral diseases of fish are geographically limited, regulatory agencies and fish farms in disease-free areas consider them exotic diseases and require certification of introduced stocks. Many result in high mortality in young fish and little or no losses in adults, which may become carriers.
Are there any viral diseases in aquaculture?
The identification and characterization of previously undescribed viral diseases in aquaculture is increasing because of recent technologic advances and increasing expertise in the aquatic veterinary field. Viruses Viral Diseases of Fish Descriptions of viral diseases of fish are rapidly expanding.
What is Channel Catfish virus?
Channel catfish virus: a new herpesvirus of ictalurid fish. Journal of Virology, 8 (No.4):525-533.
What causes mycobacteriosis in fish?
Mycobacteriosis is a chronic or acute, systemic, granulomatous disease of aquarium fish and cultured food fish, particularly those reared under intensive conditions. Predisposing environmental factors include low dissolved oxygen, low pH, and high organic load, all found in recirculating aquaculture systems.
What is the pathophysiology of vibriosis?
Vibriosis is the disease caused by gram-negative, facultative anaerobic rod bacteria from the Vibrio genus. There are many strains of Vibrio present in the aquatic environment at all times. Although they are more common in marine systems, there are species that can infect freshwater fish.