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| DOI | 10.1002/ece3.11043 |
| Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species | |
| 发表日期 | 2024 |
| ISSN | 2045-7758 |
| 起始页码 | 14 |
| 结束页码 | 4 |
| 卷号 | 14期号:4 |
| 英文摘要 | 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. Parasitic nematodes of the family Anisakidae (anisakids) can use salmon fishes as intermediate hosts in life cycles that terminate in marine mammal definitive hosts. To assess whether the anisakid burden has changed in salmon over time, we dissected a novel data source: chum, coho, pink, and sockeye salmon that were caught, canned, and thermally processed for human consumption in Alaska, USA between 1979 and 2019. Anisakid burden increased over time in chum and pink salmon, but there was no change in sockeye or coho salmon, possibly due to differences in the prey preferences of each species, or time spent in marine systems.image |
| 英文关键词 | Alaska; anisakids; canned fish; historical ecology; parasites; salmon |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Ecology ; Evolutionary Biology |
| WOS记录号 | WOS:001196508100001 |
| 来源期刊 | ECOLOGY AND EVOLUTION
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/305911 |
| 作者单位 | University of Washington; University of Washington Seattle; Yale University; North West University - South Africa |
| 推荐引用方式 GB/T 7714 | . Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species[J],2024,14(4). |
| APA | (2024).Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species.ECOLOGY AND EVOLUTION,14(4). |
| MLA | "Opening a can of worms: Archived canned fish fillets reveal 40 years of change in parasite burden for four Alaskan salmon species".ECOLOGY AND EVOLUTION 14.4(2024). |
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