Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet
Perch (Perca fluviatilis) is a very popular fish in Sweden and it is common in Swedish waters. In some areas along the Swedish coast the perch population has decreased. It is therefore important to get a view at the health status of perch. During April, July and August of 2008, a total of 346 perche...
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| Formato: | L3 |
| Lenguaje: | sueco Inglés |
| Publicado: |
SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231)
2008
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| Materias: |
| _version_ | 1855571885772767232 |
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| author | Näslund, Johanna |
| author_browse | Näslund, Johanna |
| author_facet | Näslund, Johanna |
| author_sort | Näslund, Johanna |
| collection | Epsilon Archive for Student Projects |
| description | Perch (Perca fluviatilis) is a very popular fish in Sweden and it is common in Swedish waters. In some areas along the Swedish coast the perch population has decreased. It is therefore important to get a view at the health status of perch. During April, July and August of 2008, a total of 346 perches were caught in the Gump Bay in the Botnian Sea. The fish were mainly caught by net but also by rod. They were examined for external and internal changes and virological, bacteriological, parasitological and histological studies were performed. No pathogenic viruses or bacteria known to affect fish were found. Parasites were common. However, they did rarely exist in any large numbers. Externally, two species of parasites were found; Argulus foliaceus and Piscicola geometra. On the gills Trichodina spp. were very common but Achteres percarum and parasites from the family Epistylididae were also found. Five different species were identified from the gastrointestinal tract; Acantocephalus spp, Proteocephalus spp., Camallanus sp., Contracaecum sp. and Schistocephalus spp. The most common pathological change seen in this study was cysts in the liver. From the cysts Triaenophorus nodulosus and a nematode were identified. Sporocysts containing Glugea sp. were found in the intestinal villi. In the mesenterium numerous numbers of cysts and granuloma like changes were seen but the cause of these could not be determined. The overall health status of perch in the Gump Bay was considered good. |
| format | L3 |
| id | RepoSLU11506 |
| institution | Swedish University of Agricultural Sciences |
| language | swe Inglés |
| publishDate | 2008 |
| publishDateSort | 2008 |
| publisher | SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) |
| publisherStr | SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) |
| record_format | eprints |
| spelling | RepoSLU115062017-10-04T07:02:46Z Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet Näslund, Johanna abborre Perca fluviatilis hälsoundersökning Gumpfjärden Perch (Perca fluviatilis) is a very popular fish in Sweden and it is common in Swedish waters. In some areas along the Swedish coast the perch population has decreased. It is therefore important to get a view at the health status of perch. During April, July and August of 2008, a total of 346 perches were caught in the Gump Bay in the Botnian Sea. The fish were mainly caught by net but also by rod. They were examined for external and internal changes and virological, bacteriological, parasitological and histological studies were performed. No pathogenic viruses or bacteria known to affect fish were found. Parasites were common. However, they did rarely exist in any large numbers. Externally, two species of parasites were found; Argulus foliaceus and Piscicola geometra. On the gills Trichodina spp. were very common but Achteres percarum and parasites from the family Epistylididae were also found. Five different species were identified from the gastrointestinal tract; Acantocephalus spp, Proteocephalus spp., Camallanus sp., Contracaecum sp. and Schistocephalus spp. The most common pathological change seen in this study was cysts in the liver. From the cysts Triaenophorus nodulosus and a nematode were identified. Sporocysts containing Glugea sp. were found in the intestinal villi. In the mesenterium numerous numbers of cysts and granuloma like changes were seen but the cause of these could not be determined. The overall health status of perch in the Gump Bay was considered good. Abborre (Perca fluviatilis) är en mycket populär fisk i Sverige och är vanligt förekommande i svenska vatten. I vissa områden efter svenska kusten har dock abborrbestånden minskat. Det är därför viktigt att hälsoläget hos vild abborre undersöks. Under april, juli och augusti 2008 fångades 346 abborrar i Gumpfjärden, Bottenhavet. Fisken fångades huvudsakligen med nät men även med spö. De undersöktes avseende yttre och inre förändringar och virologiska, bakteriologiska, parasitologiska och histopatologiska undersökningar gjordes. Inga fiskpatogena virus eller bakterier kunde isoleras från abborrarna. Parasiter var vanligt men de förekom sällan i några större mängder. Utvändigt hittades två arter av parasiter; Argulus foliaceus och Piscicola geometra. På gälarna förekom framför allt Trichodina spp. men även Achteres percarum och parasiter från familjen Epistylididae sågs. I mag- och tarmkanalen sågs fem arter; Acantocephalus spp., Proteocephalus spp., Camallanus sp., Contracaecum sp. och Schistocephalus spp. Levercystor var den vanligaste patologiska förändringen och Triaenophorus nodulosus samt en nematod identifierades från cystinnehållet. I tarmvilli påvisades en mikrosporidieinfektion med Glugea sp. I bukfettet sågs cyst- och granulomliknande histologiska förändringar men orsaken kunde ej fastställas. Sammanfattningsvis så kan det totala hälsoläget hos abborre i Gumpfjärden anses som gott. SLU/Dept. of Biomedical Sciences and Veterinary Public Health (until 231231) 2008 L3 swe eng https://stud.epsilon.slu.se/11506/ |
| spellingShingle | abborre Perca fluviatilis hälsoundersökning Gumpfjärden Näslund, Johanna Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet |
| title | Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet |
| title_full | Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet |
| title_fullStr | Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet |
| title_full_unstemmed | Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet |
| title_short | Hälsostatus hos abborre (Perca fluviatilis) i Gumpfjärden, Bottenhavet |
| title_sort | hälsostatus hos abborre (perca fluviatilis) i gumpfjärden, bottenhavet |
| topic | abborre Perca fluviatilis hälsoundersökning Gumpfjärden |