Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species
Abstract How has parasitism changed for Alaskan salmon over the past several decades? Parasitological assessments of salmon are inconsistent across time, and though parasite data are sometimes noted when processing fillets for the market, those data are not retained for more than a few years. The la...
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crwiley:10.1002/ece3.11043 2024-06-23T07:55:56+00:00 Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species Mastick, Natalie Welicky, Rachel Katla, Aspen Odegaard, Bruce Ng, Virginia Wood, Chelsea L. Washington Research Foundation National Science Foundation University of Washington Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington School of Aquatic and Fishery Sciences Alfred P. Sloan Foundation 2024 http://dx.doi.org/10.1002/ece3.11043 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.11043 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 14, issue 4 ISSN 2045-7758 2045-7758 journal-article 2024 crwiley https://doi.org/10.1002/ece3.11043 2024-05-31T08:13:22Z Abstract How has parasitism changed for Alaskan salmon over the past several decades? Parasitological assessments of salmon are inconsistent across time, and though parasite data are sometimes noted when processing fillets for the market, those data are not retained for more than a few years. The landscape of parasite risk is changing for salmon, and long‐term data are needed to quantify this change. Parasitic nematodes of the family Anisakidae (anisakids) use salmonid fishes as intermediate or paratenic hosts in life cycles that terminate in marine mammal definitive hosts. Alaskan marine mammals have been protected since the 1970s, and as populations recover, the density of definitive hosts in this region has increased. To assess whether the anisakid burden has changed in salmonids over time, we used a novel data source: salmon that were caught, canned, and thermally processed for human consumption in Alaska, USA. We examined canned fillets of chum ( Oncorhynchus keta , n = 42), coho ( Oncorhynchus kisutch , n = 22), pink ( Oncorhynchus gorbuscha , n = 62), and sockeye salmon ( Oncorhynchus nerka , n = 52) processed between 1979 and 2019. We dissected each fillet and quantified the number of worms per gram of salmon tissue. Anisakid burden increased over time in chum and pink salmon, but there was no change in sockeye or coho salmon. This difference may be due to differences in the prey preferences of each species, or to differences in the parasite species detected across hosts. Canned fish serve as a window into the past, providing information that would otherwise be lost, including information on changes over time in the parasite burden of commercially, culturally, and ecologically important fish species. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Alaska Wiley Online Library Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) Ecology and Evolution 14 4 |
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Open Polar |
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Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract How has parasitism changed for Alaskan salmon over the past several decades? Parasitological assessments of salmon are inconsistent across time, and though parasite data are sometimes noted when processing fillets for the market, those data are not retained for more than a few years. The landscape of parasite risk is changing for salmon, and long‐term data are needed to quantify this change. Parasitic nematodes of the family Anisakidae (anisakids) use salmonid fishes as intermediate or paratenic hosts in life cycles that terminate in marine mammal definitive hosts. Alaskan marine mammals have been protected since the 1970s, and as populations recover, the density of definitive hosts in this region has increased. To assess whether the anisakid burden has changed in salmonids over time, we used a novel data source: salmon that were caught, canned, and thermally processed for human consumption in Alaska, USA. We examined canned fillets of chum ( Oncorhynchus keta , n = 42), coho ( Oncorhynchus kisutch , n = 22), pink ( Oncorhynchus gorbuscha , n = 62), and sockeye salmon ( Oncorhynchus nerka , n = 52) processed between 1979 and 2019. We dissected each fillet and quantified the number of worms per gram of salmon tissue. Anisakid burden increased over time in chum and pink salmon, but there was no change in sockeye or coho salmon. This difference may be due to differences in the prey preferences of each species, or to differences in the parasite species detected across hosts. Canned fish serve as a window into the past, providing information that would otherwise be lost, including information on changes over time in the parasite burden of commercially, culturally, and ecologically important fish species. |
author2 |
Washington Research Foundation National Science Foundation University of Washington Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington School of Aquatic and Fishery Sciences Alfred P. Sloan Foundation |
format |
Article in Journal/Newspaper |
author |
Mastick, Natalie Welicky, Rachel Katla, Aspen Odegaard, Bruce Ng, Virginia Wood, Chelsea L. |
spellingShingle |
Mastick, Natalie Welicky, Rachel Katla, Aspen Odegaard, Bruce Ng, Virginia Wood, Chelsea L. Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species |
author_facet |
Mastick, Natalie Welicky, Rachel Katla, Aspen Odegaard, Bruce Ng, Virginia Wood, Chelsea L. |
author_sort |
Mastick, Natalie |
title |
Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species |
title_short |
Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species |
title_full |
Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species |
title_fullStr |
Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species |
title_full_unstemmed |
Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species |
title_sort |
opening a can of worms: archived canned fish fillets reveal 40 years of change in parasite burden for four alaskan salmon species |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/ece3.11043 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.11043 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(-130.143,-130.143,54.160,54.160) |
geographic |
Keta Sockeye |
geographic_facet |
Keta Sockeye |
genre |
Oncorhynchus gorbuscha Pink salmon Alaska |
genre_facet |
Oncorhynchus gorbuscha Pink salmon Alaska |
op_source |
Ecology and Evolution volume 14, issue 4 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.11043 |
container_title |
Ecology and Evolution |
container_volume |
14 |
container_issue |
4 |
_version_ |
1802648750897758208 |