Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L).
The microsporidian Loma morhua infects Atlantic cod (Gadus morhua) in the wild and in culture and results in the formation of xenomas within the gill filaments, heart and spleen. Given the importance of the two former organs to metabolic capacity and thermal tolerance, the cardiorespiratory performa...
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Online Access: | http://hdl.handle.net/11250/2562928 https://doi.org/10.1111/jfd.12352 |
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ftnorskinstvf:oai:niva.brage.unit.no:11250/2562928 2024-09-15T17:55:21+00:00 Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). Powell, M D Gamperl, A K 2016 application/pdf http://hdl.handle.net/11250/2562928 https://doi.org/10.1111/jfd.12352 eng eng Wiley Norges forskningsråd: 206993 Journal of Fish Diseases. 2016, 39 (2), 189-204. urn:issn:0140-7775 http://hdl.handle.net/11250/2562928 https://doi.org/10.1111/jfd.12352 cristin:1451632 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no © 2015 The Authors 189-204 39 Journal of Fish Diseases 2 Journal article Peer reviewed 2016 ftnorskinstvf https://doi.org/10.1111/jfd.12352 2024-07-09T03:14:36Z The microsporidian Loma morhua infects Atlantic cod (Gadus morhua) in the wild and in culture and results in the formation of xenomas within the gill filaments, heart and spleen. Given the importance of the two former organs to metabolic capacity and thermal tolerance, the cardiorespiratory performance of cod with a naturally acquired infection of Loma was measured during an acute temperature increase (2 °C h−1) from 10 °C to the fish's critical thermal maximum (CTMax). In addition, oxygen consumption and swimming performance were measured during two successive critical swimming speed (Ucrit) tests at 10 °C. While Loma infection had a negative impact on cod cardiac function at warm temperatures, and on metabolic capacity in both the CTMax and Ucrit tests (i.e. a reduction of 30–40%), it appears that the Atlantic cod can largely compensate for these Loma‐induced cardiorespiratory limitations. For example, (i) CTMax (21.0 ± 0.3 °C) and Ucrit (~1.75 BL s−1) were very comparable to those reported in previous studies using uninfected fish from the same founder population; and (ii) our data suggest that tissue oxygen extraction, and potentially the capacity for anaerobic metabolism, is enhanced in fish infected with this microsporidian. publishedVersion Article in Journal/Newspaper atlantic cod Gadus morhua Norwegian Institute for Water research: NIVA Open Access Archive (Brage) Journal of Fish Diseases 39 2 189 204 |
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Norwegian Institute for Water research: NIVA Open Access Archive (Brage) |
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language |
English |
description |
The microsporidian Loma morhua infects Atlantic cod (Gadus morhua) in the wild and in culture and results in the formation of xenomas within the gill filaments, heart and spleen. Given the importance of the two former organs to metabolic capacity and thermal tolerance, the cardiorespiratory performance of cod with a naturally acquired infection of Loma was measured during an acute temperature increase (2 °C h−1) from 10 °C to the fish's critical thermal maximum (CTMax). In addition, oxygen consumption and swimming performance were measured during two successive critical swimming speed (Ucrit) tests at 10 °C. While Loma infection had a negative impact on cod cardiac function at warm temperatures, and on metabolic capacity in both the CTMax and Ucrit tests (i.e. a reduction of 30–40%), it appears that the Atlantic cod can largely compensate for these Loma‐induced cardiorespiratory limitations. For example, (i) CTMax (21.0 ± 0.3 °C) and Ucrit (~1.75 BL s−1) were very comparable to those reported in previous studies using uninfected fish from the same founder population; and (ii) our data suggest that tissue oxygen extraction, and potentially the capacity for anaerobic metabolism, is enhanced in fish infected with this microsporidian. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Powell, M D Gamperl, A K |
spellingShingle |
Powell, M D Gamperl, A K Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). |
author_facet |
Powell, M D Gamperl, A K |
author_sort |
Powell, M D |
title |
Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). |
title_short |
Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). |
title_full |
Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). |
title_fullStr |
Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). |
title_full_unstemmed |
Effects of Loma morhua (Microsporidia) infection on the cardiorespiratory performance of Atlantic cod Gadus morhua (L). |
title_sort |
effects of loma morhua (microsporidia) infection on the cardiorespiratory performance of atlantic cod gadus morhua (l). |
publisher |
Wiley |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2562928 https://doi.org/10.1111/jfd.12352 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
189-204 39 Journal of Fish Diseases 2 |
op_relation |
Norges forskningsråd: 206993 Journal of Fish Diseases. 2016, 39 (2), 189-204. urn:issn:0140-7775 http://hdl.handle.net/11250/2562928 https://doi.org/10.1111/jfd.12352 cristin:1451632 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no © 2015 The Authors |
op_doi |
https://doi.org/10.1111/jfd.12352 |
container_title |
Journal of Fish Diseases |
container_volume |
39 |
container_issue |
2 |
container_start_page |
189 |
op_container_end_page |
204 |
_version_ |
1810431653124767744 |