Chilodonella spp. at Four Fish Farms in Northern Finland
ABSTRACT A total of 4.1% infestation with Chilodonella spp. was found among fish studied in 144 tanks in 1987–1989, representing 14.0% of the tanks in which fish are reared at four salmonid farms in northern Finland. Two species were found, C. hexasticha and C. piscicola , and both occurred on salmo...
Published in: | The Journal of Eukaryotic Microbiology |
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crwiley:10.1111/j.1550-7408.1994.tb01522.x 2024-06-02T08:12:00+00:00 Chilodonella spp. at Four Fish Farms in Northern Finland RINTAMÄKI, PÄIVI TORPSTRÖM, HEIKKI BLOIGU, AINI 1994 http://dx.doi.org/10.1111/j.1550-7408.1994.tb01522.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1550-7408.1994.tb01522.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1550-7408.1994.tb01522.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Eukaryotic Microbiology volume 41, issue 6, page 602-607 ISSN 1066-5234 1550-7408 journal-article 1994 crwiley https://doi.org/10.1111/j.1550-7408.1994.tb01522.x 2024-05-03T11:00:41Z ABSTRACT A total of 4.1% infestation with Chilodonella spp. was found among fish studied in 144 tanks in 1987–1989, representing 14.0% of the tanks in which fish are reared at four salmonid farms in northern Finland. Two species were found, C. hexasticha and C. piscicola , and both occurred on salmon ( Salmo salar L.), sea trout [S. trutta m. trutta (L.)] and brown trout [S. t. m. lacustris (L.)]. Variability was observed in the length and width of the C. piscicola specimens and the number of ciliary rows or kineties. Large specimens which had more kinetics than average for C. piscicola were found mainly on the skin of salmon aged 1–2 years. The number of kinetics in the right ciliary band was found in stepwise logistic regression analysis to be of importance when typing C. piscicola specimens. Fingerlings were found to be more susceptible to Chilodonella infestation than older fish, and mortality varied in the range 2–10% in the course of the epizootics in the three fish species. Most mortality cases were caused by C. hexasticha , occurring mainly on the gills of the fish. Chilodonella piscicola was most often found in salmon and occurred at lower water temperatures than C. hexasticha (mean water temperature when found for the first time being 13° C and 16° C, respectively). Article in Journal/Newspaper Northern Finland Salmo salar Wiley Online Library The Journal of Eukaryotic Microbiology 41 6 602 607 |
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English |
description |
ABSTRACT A total of 4.1% infestation with Chilodonella spp. was found among fish studied in 144 tanks in 1987–1989, representing 14.0% of the tanks in which fish are reared at four salmonid farms in northern Finland. Two species were found, C. hexasticha and C. piscicola , and both occurred on salmon ( Salmo salar L.), sea trout [S. trutta m. trutta (L.)] and brown trout [S. t. m. lacustris (L.)]. Variability was observed in the length and width of the C. piscicola specimens and the number of ciliary rows or kineties. Large specimens which had more kinetics than average for C. piscicola were found mainly on the skin of salmon aged 1–2 years. The number of kinetics in the right ciliary band was found in stepwise logistic regression analysis to be of importance when typing C. piscicola specimens. Fingerlings were found to be more susceptible to Chilodonella infestation than older fish, and mortality varied in the range 2–10% in the course of the epizootics in the three fish species. Most mortality cases were caused by C. hexasticha , occurring mainly on the gills of the fish. Chilodonella piscicola was most often found in salmon and occurred at lower water temperatures than C. hexasticha (mean water temperature when found for the first time being 13° C and 16° C, respectively). |
format |
Article in Journal/Newspaper |
author |
RINTAMÄKI, PÄIVI TORPSTRÖM, HEIKKI BLOIGU, AINI |
spellingShingle |
RINTAMÄKI, PÄIVI TORPSTRÖM, HEIKKI BLOIGU, AINI Chilodonella spp. at Four Fish Farms in Northern Finland |
author_facet |
RINTAMÄKI, PÄIVI TORPSTRÖM, HEIKKI BLOIGU, AINI |
author_sort |
RINTAMÄKI, PÄIVI |
title |
Chilodonella spp. at Four Fish Farms in Northern Finland |
title_short |
Chilodonella spp. at Four Fish Farms in Northern Finland |
title_full |
Chilodonella spp. at Four Fish Farms in Northern Finland |
title_fullStr |
Chilodonella spp. at Four Fish Farms in Northern Finland |
title_full_unstemmed |
Chilodonella spp. at Four Fish Farms in Northern Finland |
title_sort |
chilodonella spp. at four fish farms in northern finland |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1550-7408.1994.tb01522.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1550-7408.1994.tb01522.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1550-7408.1994.tb01522.x |
genre |
Northern Finland Salmo salar |
genre_facet |
Northern Finland Salmo salar |
op_source |
Journal of Eukaryotic Microbiology volume 41, issue 6, page 602-607 ISSN 1066-5234 1550-7408 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1550-7408.1994.tb01522.x |
container_title |
The Journal of Eukaryotic Microbiology |
container_volume |
41 |
container_issue |
6 |
container_start_page |
602 |
op_container_end_page |
607 |
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1800758306696855552 |