Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon
Background: Passive integrated transponder (PIT) tags are commonly used to identify individual fish. However, use of PIT tags in commercial aquaculture research is limited by consumer safety concerns. For farmed fish, it is critical that tags do not end up in the final product. One possibility to en...
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ftunivbergen:oai:bora.uib.no:11250/2787381 2023-05-15T15:32:44+02:00 Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon Oldham, Tina Marie Wier Macaulay, Georgia Stalheim, Malin Oppedal, Frode 2021 application/pdf https://hdl.handle.net/11250/2787381 https://doi.org/10.1186/s40317-021-00261-z eng eng BMC Havforskningsinstituttet: 14930 Havforskningsinstituttet: 14597 urn:issn:2050-3385 https://hdl.handle.net/11250/2787381 https://doi.org/10.1186/s40317-021-00261-z cristin:1937159 Animal Biotelemetry. 2021, 9, 39. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2021 the authors 39 Animal Biotelemetry 9 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.1186/s40317-021-00261-z 2023-03-14T17:45:04Z Background: Passive integrated transponder (PIT) tags are commonly used to identify individual fish. However, use of PIT tags in commercial aquaculture research is limited by consumer safety concerns. For farmed fish, it is critical that tags do not end up in the final product. One possibility to enable the use of PIT tags in commercial research is to insert tags into a part of the body that will be separated from the trunk during processing. We compare tag loss, mortality rate and welfare scores between Atlantic salmon post-smolts (n = 798) marked with PIT tags either in the operculum musculature or the abdominal cavity (standard practice) before and after mechanical delousing. Results: We found that neither condition factor (K) (range 0.60–1.99) nor tagging location significantly affected tag loss (operculum = 6%, intraperitoneal = 8%, z = 1.46, p = 0.14) or mortality (operculum = 2%, intraperitoneal = 2%, z = 0.55, p = 0.58). However, on average, the fish which died weighed 20% less at the time of handling (271 ± 13 g, K = 1.12 ± 0.02) than those which survived (340 ± 3 g, K = 1.14 ± 0.004), and those which lost tags (291 ± 7 g, K = 1.11 ± 0.02) weighed 15% less than those which retained them (340 ± 3 g, K = 1.14 ± 0.004), irrespective of tagging location or handling treatment. Conclusions: Fish tagged in the operculum musculature had comparable rates of mortality and tag loss to the current “best practice” standard of intraperitoneal tagging. We show that placement of PIT tags in operculum musculature is a viable alternative to placement in the peritoneal cavity. publishedVersion Article in Journal/Newspaper Atlantic salmon University of Bergen: Bergen Open Research Archive (BORA-UiB) Animal Biotelemetry 9 1 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
Background: Passive integrated transponder (PIT) tags are commonly used to identify individual fish. However, use of PIT tags in commercial aquaculture research is limited by consumer safety concerns. For farmed fish, it is critical that tags do not end up in the final product. One possibility to enable the use of PIT tags in commercial research is to insert tags into a part of the body that will be separated from the trunk during processing. We compare tag loss, mortality rate and welfare scores between Atlantic salmon post-smolts (n = 798) marked with PIT tags either in the operculum musculature or the abdominal cavity (standard practice) before and after mechanical delousing. Results: We found that neither condition factor (K) (range 0.60–1.99) nor tagging location significantly affected tag loss (operculum = 6%, intraperitoneal = 8%, z = 1.46, p = 0.14) or mortality (operculum = 2%, intraperitoneal = 2%, z = 0.55, p = 0.58). However, on average, the fish which died weighed 20% less at the time of handling (271 ± 13 g, K = 1.12 ± 0.02) than those which survived (340 ± 3 g, K = 1.14 ± 0.004), and those which lost tags (291 ± 7 g, K = 1.11 ± 0.02) weighed 15% less than those which retained them (340 ± 3 g, K = 1.14 ± 0.004), irrespective of tagging location or handling treatment. Conclusions: Fish tagged in the operculum musculature had comparable rates of mortality and tag loss to the current “best practice” standard of intraperitoneal tagging. We show that placement of PIT tags in operculum musculature is a viable alternative to placement in the peritoneal cavity. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Oldham, Tina Marie Wier Macaulay, Georgia Stalheim, Malin Oppedal, Frode |
spellingShingle |
Oldham, Tina Marie Wier Macaulay, Georgia Stalheim, Malin Oppedal, Frode Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon |
author_facet |
Oldham, Tina Marie Wier Macaulay, Georgia Stalheim, Malin Oppedal, Frode |
author_sort |
Oldham, Tina Marie Wier |
title |
Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon |
title_short |
Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon |
title_full |
Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon |
title_fullStr |
Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon |
title_full_unstemmed |
Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon |
title_sort |
operculum pit tagging: a viable alternative to avoid human consumption in processed salmon |
publisher |
BMC |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2787381 https://doi.org/10.1186/s40317-021-00261-z |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
39 Animal Biotelemetry 9 |
op_relation |
Havforskningsinstituttet: 14930 Havforskningsinstituttet: 14597 urn:issn:2050-3385 https://hdl.handle.net/11250/2787381 https://doi.org/10.1186/s40317-021-00261-z cristin:1937159 Animal Biotelemetry. 2021, 9, 39. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2021 the authors |
op_doi |
https://doi.org/10.1186/s40317-021-00261-z |
container_title |
Animal Biotelemetry |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766363215483109376 |