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The virus was first described in 1976 in Scotland and in 1989 in Norway. It affects farmed Atlantic salmon (Salmo salar) caused by Marine SAV2 and SAV3 and has also been identified in Rainbow trout (Oncorhyncus mykiss) in the seawater phase caused by SAV2 where the disease is commonly referred to as Sleeping Disease (SD). [1] [2] [3]
The following is a list of aquarium diseases. Aquarium fish are often susceptible to numerous diseases, due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat. Most fish diseases are also aggravated when the fish is stressed.
Cystic lesions of the pancreas are a group of pancreatic lesions characterized by a cystic appearance. They can be benign or malignant. [citation needed] Cystic lesions are found in 20.6% of all pancreatectomy specimens. Among this heterogeneous group, benign neoplasms predominate, particularly those with mucinous lining.
This toxin results in the fish developing bleeding lesions, and their skin flakes off in the water. The dinoflagellates then eat the blood and flakes of tissue while the affected fish die. [33] Fish kills by this dinoflagellate are common, and they may also have been responsible for kills in the past which were thought to have had other causes ...
Infectious pancreatic necrosis (IPN) is a severe viral disease of salmonid fish. It is caused by infectious pancreatic necrosis virus , which is a member of the Birnaviridae family. This disease mainly affects young salmonids such as trout or salmon of less than six months, although adult fish may carry the virus without showing symptoms. [ 1 ]
Infectious pancreatic necrosis disease virus (IPNV) causes infectious pancreatic necrosis disease (IPN) in fish – most disease has been documented in young, farmed salmonid fish. [9] Infectious pancreatic necrosis disease virus (IPNV) is a bi-segmented, double-stranded RNA virus belonging to the Aquabirnavirus subgroup of the Birnaviridae. [16]
The isthmus (also called the central pancreas) is the region of the gland that runs anterior to the superior mesenteric artery; by convention, it divides the right and left sides of the pancreas. [2] The ventral pancreatic bud forms the pancreatic head and uncinate process. The glands continue to develop but the duct systems anastomose.
Since these lesions do not have malignant potential, long-term observation with imaging surveillance is unnecessary. [4] Surgery can include the removal of the head of the pancreas (a pancreaticoduodenectomy), removal of the body and tail of the pancreas (a distal pancreatectomy), or rarely removal of the entire pancreas (a total pancreatectomy ...