Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge.
BACKGROUND: Over recent decades jellyfish have caused fish kill events and recurrent gill problems in marine-farmed salmonids. Common jellyfish (Aurelia spp.) are among the most cosmopolitan jellyfish species in the oceans, with populations increasing in many coastal areas. The negative interaction...
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ftdoajarticles:oai:doaj.org/article:815f659f88d149a3b7f7884d19bf6523 2023-05-15T15:32:04+02:00 Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. Emily J Baxter Michael M Sturt Neil M Ruane Thomas K Doyle Rob McAllen Luke Harman Hamish D Rodger 2011-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0018529 https://doaj.org/article/815f659f88d149a3b7f7884d19bf6523 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3072396?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0018529 https://doaj.org/article/815f659f88d149a3b7f7884d19bf6523 PLoS ONE, Vol 6, Iss 4, p e18529 (2011) Medicine R Science Q article 2011 ftdoajarticles https://doi.org/10.1371/journal.pone.0018529 2022-12-31T04:13:01Z BACKGROUND: Over recent decades jellyfish have caused fish kill events and recurrent gill problems in marine-farmed salmonids. Common jellyfish (Aurelia spp.) are among the most cosmopolitan jellyfish species in the oceans, with populations increasing in many coastal areas. The negative interaction between jellyfish and fish in aquaculture remains a poorly studied area of science. Thus, a recent fish mortality event in Ireland, involving Aurelia aurita, spurred an investigation into the effects of this jellyfish on marine-farmed salmon. METHODOLOGY/PRINCIPAL FINDINGS: To address the in vivo impact of the common jellyfish (A. aurita) on salmonids, we exposed Atlantic salmon (Salmo salar) smolts to macerated A. aurita for 10 hrs under experimental challenge. Gill tissues of control and experimental treatment groups were scored with a system that rated the damage between 0 and 21 using a range of primary and secondary parameters. Our results revealed that A. aurita rapidly and extensively damaged the gills of S. salar, with the pathogenesis of the disorder progressing even after the jellyfish were removed. After only 2 hrs of exposure, significant multi-focal damage to gill tissues was apparent. The nature and extent of the damage increased up to 48 hrs from the start of the challenge. Although the gills remained extensively damaged at 3 wks from the start of the challenge trial, shortening of the gill lamellae and organisation of the cells indicated an attempt to repair the damage suffered. CONCLUSIONS: Our findings clearly demonstrate that A. aurita can cause severe gill problems in marine-farmed fish. With aquaculture predicted to expand worldwide and evidence suggesting that jellyfish populations are increasing in some areas, this threat to aquaculture is of rising concern as significant losses due to jellyfish could be expected to increase in the future. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles PLoS ONE 6 4 e18529 |
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Medicine R Science Q Emily J Baxter Michael M Sturt Neil M Ruane Thomas K Doyle Rob McAllen Luke Harman Hamish D Rodger Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. |
topic_facet |
Medicine R Science Q |
description |
BACKGROUND: Over recent decades jellyfish have caused fish kill events and recurrent gill problems in marine-farmed salmonids. Common jellyfish (Aurelia spp.) are among the most cosmopolitan jellyfish species in the oceans, with populations increasing in many coastal areas. The negative interaction between jellyfish and fish in aquaculture remains a poorly studied area of science. Thus, a recent fish mortality event in Ireland, involving Aurelia aurita, spurred an investigation into the effects of this jellyfish on marine-farmed salmon. METHODOLOGY/PRINCIPAL FINDINGS: To address the in vivo impact of the common jellyfish (A. aurita) on salmonids, we exposed Atlantic salmon (Salmo salar) smolts to macerated A. aurita for 10 hrs under experimental challenge. Gill tissues of control and experimental treatment groups were scored with a system that rated the damage between 0 and 21 using a range of primary and secondary parameters. Our results revealed that A. aurita rapidly and extensively damaged the gills of S. salar, with the pathogenesis of the disorder progressing even after the jellyfish were removed. After only 2 hrs of exposure, significant multi-focal damage to gill tissues was apparent. The nature and extent of the damage increased up to 48 hrs from the start of the challenge. Although the gills remained extensively damaged at 3 wks from the start of the challenge trial, shortening of the gill lamellae and organisation of the cells indicated an attempt to repair the damage suffered. CONCLUSIONS: Our findings clearly demonstrate that A. aurita can cause severe gill problems in marine-farmed fish. With aquaculture predicted to expand worldwide and evidence suggesting that jellyfish populations are increasing in some areas, this threat to aquaculture is of rising concern as significant losses due to jellyfish could be expected to increase in the future. |
format |
Article in Journal/Newspaper |
author |
Emily J Baxter Michael M Sturt Neil M Ruane Thomas K Doyle Rob McAllen Luke Harman Hamish D Rodger |
author_facet |
Emily J Baxter Michael M Sturt Neil M Ruane Thomas K Doyle Rob McAllen Luke Harman Hamish D Rodger |
author_sort |
Emily J Baxter |
title |
Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. |
title_short |
Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. |
title_full |
Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. |
title_fullStr |
Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. |
title_full_unstemmed |
Gill damage to Atlantic salmon (Salmo salar) caused by the common jellyfish (Aurelia aurita) under experimental challenge. |
title_sort |
gill damage to atlantic salmon (salmo salar) caused by the common jellyfish (aurelia aurita) under experimental challenge. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2011 |
url |
https://doi.org/10.1371/journal.pone.0018529 https://doaj.org/article/815f659f88d149a3b7f7884d19bf6523 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
PLoS ONE, Vol 6, Iss 4, p e18529 (2011) |
op_relation |
http://europepmc.org/articles/PMC3072396?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0018529 https://doaj.org/article/815f659f88d149a3b7f7884d19bf6523 |
op_doi |
https://doi.org/10.1371/journal.pone.0018529 |
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PLoS ONE |
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6 |
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4 |
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e18529 |
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