Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results
Every year, ulcerative dermal necrosis (UDN) affects salmonids that spend most of their lives in the sea during their migration to the rivers of northern Poland to spawn. The clinical form of the disease manifests itself in ulcerative skin lesions, which lead to significant weakening of the fish and...
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MDPI AG
2024-03-01
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| Series: | Pathogens |
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| Online Access: | https://www.mdpi.com/2076-0817/13/3/251 |
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| author | Marek Matras Magdalena Stachnik Anna Kycko Magdalena Wasiak Ewa Paździor Joanna Maj-Paluch Ewa Borzym Michał Reichert |
| author_facet | Marek Matras Magdalena Stachnik Anna Kycko Magdalena Wasiak Ewa Paździor Joanna Maj-Paluch Ewa Borzym Michał Reichert |
| author_sort | Marek Matras |
| collection | DOAJ |
| description | Every year, ulcerative dermal necrosis (UDN) affects salmonids that spend most of their lives in the sea during their migration to the rivers of northern Poland to spawn. The clinical form of the disease manifests itself in ulcerative skin lesions, which lead to significant weakening of the fish and, in most cases, result in their death. This study was carried out on samples taken from sea trout in the Słupia River in northern Poland. In order to identify the pathogen, experiments on the transmission of the disease were carried out, and additional histopathological, microbiological and electron microscopic examinations were performed. As a result of these studies, it was possible to experimentally transfer the disease from sick to healthy fish. The results indicate a complex etiology of the disease (lack of a clearly defined pathogen), in which the change in the environment from salty to freshwater triggers the related changes in skin physiology, which are the main causes of increased susceptibility to the development of the disease. |
| first_indexed | 2024-04-24T17:56:34Z |
| format | Article |
| id | doaj.art-d4e8ba497442473480ac43a20cd37751 |
| institution | Directory Open Access Journal |
| issn | 2076-0817 |
| language | English |
| last_indexed | 2024-04-24T17:56:34Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
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| series | Pathogens |
| spelling | doaj.art-d4e8ba497442473480ac43a20cd377512024-03-27T13:58:57ZengMDPI AGPathogens2076-08172024-03-0113325110.3390/pathogens13030251Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary ResultsMarek Matras0Magdalena Stachnik1Anna Kycko2Magdalena Wasiak3Ewa Paździor4Joanna Maj-Paluch5Ewa Borzym6Michał Reichert7Department of Fish Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Fish Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Pathology, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Pathology, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Fish Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Fish Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Fish Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandDepartment of Fish Diseases, National Veterinary Research Institute, 57 Partyzantów Avenue, 24-100 Pulawy, PolandEvery year, ulcerative dermal necrosis (UDN) affects salmonids that spend most of their lives in the sea during their migration to the rivers of northern Poland to spawn. The clinical form of the disease manifests itself in ulcerative skin lesions, which lead to significant weakening of the fish and, in most cases, result in their death. This study was carried out on samples taken from sea trout in the Słupia River in northern Poland. In order to identify the pathogen, experiments on the transmission of the disease were carried out, and additional histopathological, microbiological and electron microscopic examinations were performed. As a result of these studies, it was possible to experimentally transfer the disease from sick to healthy fish. The results indicate a complex etiology of the disease (lack of a clearly defined pathogen), in which the change in the environment from salty to freshwater triggers the related changes in skin physiology, which are the main causes of increased susceptibility to the development of the disease.https://www.mdpi.com/2076-0817/13/3/251pathogenesisspawning migrationsalmonidspathologyskin lesions |
| spellingShingle | Marek Matras Magdalena Stachnik Anna Kycko Magdalena Wasiak Ewa Paździor Joanna Maj-Paluch Ewa Borzym Michał Reichert Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results Pathogens pathogenesis spawning migration salmonids pathology skin lesions |
| title | Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results |
| title_full | Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results |
| title_fullStr | Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results |
| title_full_unstemmed | Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results |
| title_short | Etiology of Ulcerative Dermal Necrosis (UDN) in Brown Trout (<i>Salmo trutta</i> Morpha <i>trutta</i>)—Preliminary Results |
| title_sort | etiology of ulcerative dermal necrosis udn in brown trout i salmo trutta i morpha i trutta i preliminary results |
| topic | pathogenesis spawning migration salmonids pathology skin lesions |
| url | https://www.mdpi.com/2076-0817/13/3/251 |
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