Seasonality and heterogeneity of live fish movements in Scottish fish farms
Movement of live animals is a key contributor to disease spread. Farmed Atlantic salmon Salmo salar, rainbow trout Onchorynchus mykiss and brown/sea trout Salmo trutta are initially raised in freshwater (FW) farms; all the salmon and some of the trout are subsequently moved to seawater (SW) farms. F...
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Online Access: | http://hdl.handle.net/1893/3736 https://doi.org/10.3354/dao02382 http://dspace.stir.ac.uk/bitstream/1893/3736/1/Seasonality_preprint.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/3736 2023-05-15T15:31:16+02:00 Seasonality and heterogeneity of live fish movements in Scottish fish farms Werkman, Marleen Green, Darren Munro, Lorna Ann Murray, Alexander G Turnbull, James University of Stirling Institute of Aquaculture Scottish Government - Enterprise, Environment & Digital - Marine Scotland orcid:0000-0001-9026-5675 orcid:0000-0003-0741-9747 2011 application/pdf http://hdl.handle.net/1893/3736 https://doi.org/10.3354/dao02382 http://dspace.stir.ac.uk/bitstream/1893/3736/1/Seasonality_preprint.pdf en eng Inter-Research Werkman M, Green D, Munro LA, Murray AG & Turnbull J (2011) Seasonality and heterogeneity of live fish movements in Scottish fish farms. Diseases of Aquatic Organisms, 96 (1), pp. 69-82. https://doi.org/10.3354/dao02382 http://hdl.handle.net/1893/3736 doi:10.3354/dao02382 WOS:000294435100008 2-s2.0-80052461274 771572 http://dspace.stir.ac.uk/bitstream/1893/3736/1/Seasonality_preprint.pdf Published in Diseases of Aquatic Organisms. Copyright © 2011 Inter-Research. Disease transmission Epidemiology Contact structure Aquaculture Atlantic salmon Diseases Atlantic salmon Ecology Journal Article AM - Accepted Manuscript 2011 ftunivstirling https://doi.org/10.3354/dao02382 2022-06-13T18:43:09Z Movement of live animals is a key contributor to disease spread. Farmed Atlantic salmon Salmo salar, rainbow trout Onchorynchus mykiss and brown/sea trout Salmo trutta are initially raised in freshwater (FW) farms; all the salmon and some of the trout are subsequently moved to seawater (SW) farms. Frequently, fish are moved between farms during their FW stage and sometimes during their SW stage. Seasonality and differences in contact patterns across production phases have been shown to influence the course of an epidemic in livestock; however, these parameters have not been included in previous network models studying disease transmission in salmonids. In Scotland, farmers are required to register fish movements onto and off their farms; these records were used in the present study to investigate seasonality and heterogeneity of movements for each production phase separately for farmed salmon, rainbow trout and brown/sea trout. Salmon FW-FW and FW-SW movements showed a higher degree of heterogeneity in number of contacts and different seasonal patterns compared with SW-SW movements. FW-FW movements peaked from May to July and FW-SW movements peaked from March to April and from October to November. Salmon SW-SW movements occurred more consistently over the year and showed fewer connections and number of repeated connections between farms. Therefore, the salmon SW-SW network might be treated as homogeneous regarding the number of connections between farms and without seasonality. However, seasonality and production phase should be included in simulation models concerning FW-FW and FW-SW movements specifically. The number of rainbow trout FW-FW and brown/sea trout FW- FW movements were different from random. However, movements from other production phases were too low to discern a seasonal pattern or differences in contact pattern. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Stirling: Stirling Digital Research Repository Diseases of Aquatic Organisms 96 1 69 82 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
Disease transmission Epidemiology Contact structure Aquaculture Atlantic salmon Diseases Atlantic salmon Ecology |
spellingShingle |
Disease transmission Epidemiology Contact structure Aquaculture Atlantic salmon Diseases Atlantic salmon Ecology Werkman, Marleen Green, Darren Munro, Lorna Ann Murray, Alexander G Turnbull, James Seasonality and heterogeneity of live fish movements in Scottish fish farms |
topic_facet |
Disease transmission Epidemiology Contact structure Aquaculture Atlantic salmon Diseases Atlantic salmon Ecology |
description |
Movement of live animals is a key contributor to disease spread. Farmed Atlantic salmon Salmo salar, rainbow trout Onchorynchus mykiss and brown/sea trout Salmo trutta are initially raised in freshwater (FW) farms; all the salmon and some of the trout are subsequently moved to seawater (SW) farms. Frequently, fish are moved between farms during their FW stage and sometimes during their SW stage. Seasonality and differences in contact patterns across production phases have been shown to influence the course of an epidemic in livestock; however, these parameters have not been included in previous network models studying disease transmission in salmonids. In Scotland, farmers are required to register fish movements onto and off their farms; these records were used in the present study to investigate seasonality and heterogeneity of movements for each production phase separately for farmed salmon, rainbow trout and brown/sea trout. Salmon FW-FW and FW-SW movements showed a higher degree of heterogeneity in number of contacts and different seasonal patterns compared with SW-SW movements. FW-FW movements peaked from May to July and FW-SW movements peaked from March to April and from October to November. Salmon SW-SW movements occurred more consistently over the year and showed fewer connections and number of repeated connections between farms. Therefore, the salmon SW-SW network might be treated as homogeneous regarding the number of connections between farms and without seasonality. However, seasonality and production phase should be included in simulation models concerning FW-FW and FW-SW movements specifically. The number of rainbow trout FW-FW and brown/sea trout FW- FW movements were different from random. However, movements from other production phases were too low to discern a seasonal pattern or differences in contact pattern. |
author2 |
University of Stirling Institute of Aquaculture Scottish Government - Enterprise, Environment & Digital - Marine Scotland orcid:0000-0001-9026-5675 orcid:0000-0003-0741-9747 |
format |
Article in Journal/Newspaper |
author |
Werkman, Marleen Green, Darren Munro, Lorna Ann Murray, Alexander G Turnbull, James |
author_facet |
Werkman, Marleen Green, Darren Munro, Lorna Ann Murray, Alexander G Turnbull, James |
author_sort |
Werkman, Marleen |
title |
Seasonality and heterogeneity of live fish movements in Scottish fish farms |
title_short |
Seasonality and heterogeneity of live fish movements in Scottish fish farms |
title_full |
Seasonality and heterogeneity of live fish movements in Scottish fish farms |
title_fullStr |
Seasonality and heterogeneity of live fish movements in Scottish fish farms |
title_full_unstemmed |
Seasonality and heterogeneity of live fish movements in Scottish fish farms |
title_sort |
seasonality and heterogeneity of live fish movements in scottish fish farms |
publisher |
Inter-Research |
publishDate |
2011 |
url |
http://hdl.handle.net/1893/3736 https://doi.org/10.3354/dao02382 http://dspace.stir.ac.uk/bitstream/1893/3736/1/Seasonality_preprint.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Werkman M, Green D, Munro LA, Murray AG & Turnbull J (2011) Seasonality and heterogeneity of live fish movements in Scottish fish farms. Diseases of Aquatic Organisms, 96 (1), pp. 69-82. https://doi.org/10.3354/dao02382 http://hdl.handle.net/1893/3736 doi:10.3354/dao02382 WOS:000294435100008 2-s2.0-80052461274 771572 http://dspace.stir.ac.uk/bitstream/1893/3736/1/Seasonality_preprint.pdf |
op_rights |
Published in Diseases of Aquatic Organisms. Copyright © 2011 Inter-Research. |
op_doi |
https://doi.org/10.3354/dao02382 |
container_title |
Diseases of Aquatic Organisms |
container_volume |
96 |
container_issue |
1 |
container_start_page |
69 |
op_container_end_page |
82 |
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1766361765108514816 |