The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective
Modern salmon aquaculture began in 1970 with the innovation of at-sea fish pens which precipitated a rapid growth in production. The expansion of the industry and increased number of farmed fish concentrated within the open net-pens has produced conditions that foster environmental and disease probl...
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The University of Bergen
2022
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Online Access: | https://hdl.handle.net/11250/2999964 |
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ftunivbergen:oai:bora.uib.no:11250/2999964 2023-05-15T15:32:59+02:00 The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective Thompson, Cameron orcid:0000-0003-3318-4064 2022-06-08T19:01:53.257Z application/pdf https://hdl.handle.net/11250/2999964 eng eng The University of Bergen Paper I: Thompson, C.R., Bui, S., Dalvin, S., and Skern‐Mauritzen, R. Disentangling the key drivers of salmon louse fecundity through an examination of field samples, with a focus on the role of temperature and body size. The article is not available in BORA. Paper II: Thompson, C.R., Bron, J.E., Bui, S., Dalvin, S., Fordyce, M.J., Furmanek, T., á Norði, G. and Skern‐Mauritzen, R., (2021). Illuminating the planktonic stages of salmon lice: A unique fluorescence signal for rapid identification of a rare copepod in zooplankton assemblages. Journal of Fish Diseases, 44(7): 863-879. The article is available in the thesis file. The article is also available at: https://doi.org/10.1111/jfd.13345 Paper III: Thompson, C.R., Bron, J., Bui, S., Dalvin, S., Fordyce, M.J., á Norði, G. and Skern‐ Mauritzen, R., 2022. A novel method for the rapid enumeration of planktonic salmon lice in a mixed zooplankton assemblage using fluorescence. Aquaculture Research, 53(6): 2317-2329. The article is available in the thesis file. The article is also available at: https://doi.org/10.1111/are.15750 container/28/e4/23/86/28e42386-a24f-481e-a57d-fd2cd35e0e1a urn:isbn:9788230867914 urn:isbn:9788230846506 https://hdl.handle.net/11250/2999964 Attribution-NonCommercial-NoDerivs (CC BY-NC-ND). This item's rights statement or license does not apply to the included articles in the thesis. https://creativecommons.org/licenses/by-nc-nd/4.0/ Copyright the Author. Doctoral thesis 2022 ftunivbergen https://doi.org/10.1111/jfd.1334510.1111/are.15750 2023-03-14T17:43:49Z Modern salmon aquaculture began in 1970 with the innovation of at-sea fish pens which precipitated a rapid growth in production. The expansion of the industry and increased number of farmed fish concentrated within the open net-pens has produced conditions that foster environmental and disease problems. Among the various pathogens impacting the industry, the salmon louse (Lepeophtheirus salmonis) presents a unique challenge due to its proliferation on farms, welfare impacts on host fish, the threat it poses to wild populations of salmonids, and for the cost of and its resistance to control efforts. Norway, the world leader in salmon production, has responded to the persistent challenge of salmon lice with the implementation of a management regime (Traffic Light System) that links permitted aquaculture production to louse induced mortality of wild Atlantic salmon populations. Those management decisions are reliant on an understanding of salmon louse distribution throughout the Norwegian coast, but aspects of the copepod’s life history and biology which determine their planktonic abundance remain understudied. Nevertheless, to meet the needs of the management regime modelers must forecast salmon louse reproduction and planktonic dispersal from salmon farms. Although these models are validated with observations of salmon louse infections on fish, there is a lack of empirical evidence on the distribution and abundance of planktonic stages. Due to the difficulty of enumerating planktonic lice in a mixed zooplankton sample they are almost unobservable and thus exist in a ‘black-box’. This thesis seeks to shed light on the salmon louse larval black-box within the context of the aquaculture management in Norway through two approaches. A greater knowledge of the planktonic stages can be gained through a better understanding of the salmon louse’s life history, and through empirical data on their planktonic abundance and distribution. This thesis addresses the first approach by refining the current understanding of salmon ... Doctoral or Postdoctoral Thesis Atlantic salmon University of Bergen: Bergen Open Research Archive (BORA-UiB) Norway |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Modern salmon aquaculture began in 1970 with the innovation of at-sea fish pens which precipitated a rapid growth in production. The expansion of the industry and increased number of farmed fish concentrated within the open net-pens has produced conditions that foster environmental and disease problems. Among the various pathogens impacting the industry, the salmon louse (Lepeophtheirus salmonis) presents a unique challenge due to its proliferation on farms, welfare impacts on host fish, the threat it poses to wild populations of salmonids, and for the cost of and its resistance to control efforts. Norway, the world leader in salmon production, has responded to the persistent challenge of salmon lice with the implementation of a management regime (Traffic Light System) that links permitted aquaculture production to louse induced mortality of wild Atlantic salmon populations. Those management decisions are reliant on an understanding of salmon louse distribution throughout the Norwegian coast, but aspects of the copepod’s life history and biology which determine their planktonic abundance remain understudied. Nevertheless, to meet the needs of the management regime modelers must forecast salmon louse reproduction and planktonic dispersal from salmon farms. Although these models are validated with observations of salmon louse infections on fish, there is a lack of empirical evidence on the distribution and abundance of planktonic stages. Due to the difficulty of enumerating planktonic lice in a mixed zooplankton sample they are almost unobservable and thus exist in a ‘black-box’. This thesis seeks to shed light on the salmon louse larval black-box within the context of the aquaculture management in Norway through two approaches. A greater knowledge of the planktonic stages can be gained through a better understanding of the salmon louse’s life history, and through empirical data on their planktonic abundance and distribution. This thesis addresses the first approach by refining the current understanding of salmon ... |
author2 |
orcid:0000-0003-3318-4064 |
format |
Doctoral or Postdoctoral Thesis |
author |
Thompson, Cameron |
spellingShingle |
Thompson, Cameron The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
author_facet |
Thompson, Cameron |
author_sort |
Thompson, Cameron |
title |
The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
title_short |
The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
title_full |
The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
title_fullStr |
The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
title_full_unstemmed |
The salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
title_sort |
salmon louse larval black box: evaluating fecundity and enumerating planktonic stages with an aquaculture management perspective |
publisher |
The University of Bergen |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2999964 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
Paper I: Thompson, C.R., Bui, S., Dalvin, S., and Skern‐Mauritzen, R. Disentangling the key drivers of salmon louse fecundity through an examination of field samples, with a focus on the role of temperature and body size. The article is not available in BORA. Paper II: Thompson, C.R., Bron, J.E., Bui, S., Dalvin, S., Fordyce, M.J., Furmanek, T., á Norði, G. and Skern‐Mauritzen, R., (2021). Illuminating the planktonic stages of salmon lice: A unique fluorescence signal for rapid identification of a rare copepod in zooplankton assemblages. Journal of Fish Diseases, 44(7): 863-879. The article is available in the thesis file. The article is also available at: https://doi.org/10.1111/jfd.13345 Paper III: Thompson, C.R., Bron, J., Bui, S., Dalvin, S., Fordyce, M.J., á Norði, G. and Skern‐ Mauritzen, R., 2022. A novel method for the rapid enumeration of planktonic salmon lice in a mixed zooplankton assemblage using fluorescence. Aquaculture Research, 53(6): 2317-2329. The article is available in the thesis file. The article is also available at: https://doi.org/10.1111/are.15750 container/28/e4/23/86/28e42386-a24f-481e-a57d-fd2cd35e0e1a urn:isbn:9788230867914 urn:isbn:9788230846506 https://hdl.handle.net/11250/2999964 |
op_rights |
Attribution-NonCommercial-NoDerivs (CC BY-NC-ND). This item's rights statement or license does not apply to the included articles in the thesis. https://creativecommons.org/licenses/by-nc-nd/4.0/ Copyright the Author. |
op_doi |
https://doi.org/10.1111/jfd.1334510.1111/are.15750 |
_version_ |
1766363463001571328 |