{"title":"二氧化碳水平升高不会对年幼鱼造成物种或组织特异性损伤","authors":"Emma M. Traynor, Caleb T. Hasler","doi":"10.1002/aah.10180","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Objective</h3>\n \n <p>The broad objective of our study was to use a histological approach to examine possible tissue-level effects of exposure to elevated CO<sub>2</sub> in freshwater young-of-year salmonids.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>To study these effects, young-of-year Arctic Char <i>Salvelinus alpinus</i>, Rainbow Trout <i>Oncorhynchus mykiss</i>, and Brook Trout <i>S. fontinalis</i> were exposed to either control levels of CO<sub>2</sub> (1400 μatm) or elevated levels of CO<sub>2</sub> (5236 μatm) for 15 days. Fish were then sampled for gill, liver, and heart tissues and histologically analyzed.</p>\n </section>\n \n <section>\n \n <h3> Result</h3>\n \n <p>A species effect was observed for the length of secondary lamellae, as Arctic Char had significantly shorter secondary lamellae than the other species. No notable changes within the gills and livers of Arctic Char, Brook Trout, or Rainbow Trout exposed to elevated CO<sub>2</sub> were observed.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>Generally, our results indicated that elevated CO<sub>2</sub> levels over 15 days do not induce catastrophic tissue damage and it is unlikely that fish health would be seriously impacted. Ongoing research dedicated to examining how elevated CO<sub>2</sub> long-term may affect internal tissues of fish will allow for a more comprehensive understanding of how fish may fair with ongoing climate change and in aquaculture facilities.</p>\n </section>\n </div>","PeriodicalId":15235,"journal":{"name":"Journal of aquatic animal health","volume":"35 2","pages":"78-87"},"PeriodicalIF":1.5000,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aah.10180","citationCount":"0","resultStr":"{\"title\":\"Elevated CO2 levels did not induce species- or tissue-specific damage in young-of-year salmonids\",\"authors\":\"Emma M. Traynor, Caleb T. Hasler\",\"doi\":\"10.1002/aah.10180\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Objective</h3>\\n \\n <p>The broad objective of our study was to use a histological approach to examine possible tissue-level effects of exposure to elevated CO<sub>2</sub> in freshwater young-of-year salmonids.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>To study these effects, young-of-year Arctic Char <i>Salvelinus alpinus</i>, Rainbow Trout <i>Oncorhynchus mykiss</i>, and Brook Trout <i>S. fontinalis</i> were exposed to either control levels of CO<sub>2</sub> (1400 μatm) or elevated levels of CO<sub>2</sub> (5236 μatm) for 15 days. Fish were then sampled for gill, liver, and heart tissues and histologically analyzed.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Result</h3>\\n \\n <p>A species effect was observed for the length of secondary lamellae, as Arctic Char had significantly shorter secondary lamellae than the other species. No notable changes within the gills and livers of Arctic Char, Brook Trout, or Rainbow Trout exposed to elevated CO<sub>2</sub> were observed.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>Generally, our results indicated that elevated CO<sub>2</sub> levels over 15 days do not induce catastrophic tissue damage and it is unlikely that fish health would be seriously impacted. Ongoing research dedicated to examining how elevated CO<sub>2</sub> long-term may affect internal tissues of fish will allow for a more comprehensive understanding of how fish may fair with ongoing climate change and in aquaculture facilities.</p>\\n </section>\\n </div>\",\"PeriodicalId\":15235,\"journal\":{\"name\":\"Journal of aquatic animal health\",\"volume\":\"35 2\",\"pages\":\"78-87\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2023-02-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aah.10180\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of aquatic animal health\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/aah.10180\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of aquatic animal health","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aah.10180","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FISHERIES","Score":null,"Total":0}
Elevated CO2 levels did not induce species- or tissue-specific damage in young-of-year salmonids
Objective
The broad objective of our study was to use a histological approach to examine possible tissue-level effects of exposure to elevated CO2 in freshwater young-of-year salmonids.
Methods
To study these effects, young-of-year Arctic Char Salvelinus alpinus, Rainbow Trout Oncorhynchus mykiss, and Brook Trout S. fontinalis were exposed to either control levels of CO2 (1400 μatm) or elevated levels of CO2 (5236 μatm) for 15 days. Fish were then sampled for gill, liver, and heart tissues and histologically analyzed.
Result
A species effect was observed for the length of secondary lamellae, as Arctic Char had significantly shorter secondary lamellae than the other species. No notable changes within the gills and livers of Arctic Char, Brook Trout, or Rainbow Trout exposed to elevated CO2 were observed.
Conclusion
Generally, our results indicated that elevated CO2 levels over 15 days do not induce catastrophic tissue damage and it is unlikely that fish health would be seriously impacted. Ongoing research dedicated to examining how elevated CO2 long-term may affect internal tissues of fish will allow for a more comprehensive understanding of how fish may fair with ongoing climate change and in aquaculture facilities.
期刊介绍：
The Journal of Aquatic Animal Health serves the international community of scientists and culturists concerned with the health of aquatic organisms. It carries research papers on the causes, effects, treatments, and prevention of diseases of marine and freshwater organisms, particularly fish and shellfish. In addition, it contains papers that describe biochemical and physiological investigations into fish health that relate to assessing the impacts of both environmental and pathogenic features.
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