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Do carbonated beverages reduce bleeding from gill injuries in angled Northern Pike?: In Prep for North American Journal of Fisheries Management

Alexandria Trahan, Auston Chhor, View ORCID ProfileMichael J. Lawrence, View ORCID ProfileJacob W. Brownscombe, Daniel Glassman, Connor H. Reid, Alice E.I. Abrams, Andy J. Danylchuk, Steven J. Cooke
doi: https://doi.org/10.1101/2020.06.15.150797
Alexandria Trahan
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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  • For correspondence: atrahan9@gmail.com
Auston Chhor
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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Michael J. Lawrence
2Department of Biological Sciences, University of Manitoba, 50 Sifton Road, Winnipeg, MB, R3T 2N2, Canada
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Jacob W. Brownscombe
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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Daniel Glassman
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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Connor H. Reid
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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Alice E.I. Abrams
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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Andy J. Danylchuk
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Steven J. Cooke
1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton University, Ottawa, ON, K1S 5B6, Canada
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Abstract

The premise of catch-and-release angling is that most fish survive fisheries interactions. Therefore, it is common for anglers, management agencies, and other organizations to share information on handling practices and other strategies that are believed to improve fish welfare and survival. Recent media coverage has sensationalized the use of carbonated beverages to treat bleeding fish, an intervention that is purported to stop bleeding but has yet to be validated scientifically. We captured Northern Pike (Esox lucius) via hook and line, experimentally injured their gills in a standardized manner, and treated them with either Mountain Dew, Coca Cola, or carbonated lake water and observed the duration and intensity of bleeding, as well as overall blood loss (using gill colour as a proxy) while the fish was held in a lake water bath. As a control, we had a group of experimentally injured fish that did not have liquid poured over their gills before the observation period. All treatments and the control were conducted at two different water temperatures (11-18 °C and 24-27 °C) to determine if the effects of pouring carbonated beverages over injured gills is temperature dependent. When compared to the control, we found that the duration and intensity of bleeding increased regardless of the type of carbonated beverages used in this study, and there was no effect of water temperature. Use of chilled versus ambient temperature beverages similarly had no influence on outcomes. As such, there is no scientific evidence to support the use of carbonated beverages for reducing or stopping blood loss for fish that have had their gills injured during recreational angling based on the context studied here. This study reinforced the need to scientifically test angler anecdotes and theories when it comes to best practices for catch-and-release fishing.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted June 16, 2020.
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Do carbonated beverages reduce bleeding from gill injuries in angled Northern Pike?: In Prep for North American Journal of Fisheries Management
Alexandria Trahan, Auston Chhor, Michael J. Lawrence, Jacob W. Brownscombe, Daniel Glassman, Connor H. Reid, Alice E.I. Abrams, Andy J. Danylchuk, Steven J. Cooke
bioRxiv 2020.06.15.150797; doi: https://doi.org/10.1101/2020.06.15.150797
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Do carbonated beverages reduce bleeding from gill injuries in angled Northern Pike?: In Prep for North American Journal of Fisheries Management
Alexandria Trahan, Auston Chhor, Michael J. Lawrence, Jacob W. Brownscombe, Daniel Glassman, Connor H. Reid, Alice E.I. Abrams, Andy J. Danylchuk, Steven J. Cooke
bioRxiv 2020.06.15.150797; doi: https://doi.org/10.1101/2020.06.15.150797

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