Antagonistic effects of ocean acidification and warming on hunting sharks
Ocean warming and acidification alter the physiological performance and behaviour of many small‐bodied fishes, yet the potential interactive effects of these stressors on larger predators remains poorly understood. In particular, the combined effects of elevated temperature on metabolism and of elev...
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crwiley:10.1111/oik.03182 2024-09-15T18:27:54+00:00 Antagonistic effects of ocean acidification and warming on hunting sharks Pistevos, Jennifer C. A. Nagelkerken, Ivan Rossi, Tullio Connell, Sean D. Australian Research Council 2016 http://dx.doi.org/10.1111/oik.03182 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Foik.03182 https://onlinelibrary.wiley.com/doi/pdf/10.1111/oik.03182 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/oik.03182 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/oik.03182 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Oikos volume 126, issue 2 ISSN 0030-1299 1600-0706 journal-article 2016 crwiley https://doi.org/10.1111/oik.03182 2024-08-06T04:14:02Z Ocean warming and acidification alter the physiological performance and behaviour of many small‐bodied fishes, yet the potential interactive effects of these stressors on larger predators remains poorly understood. In particular, the combined effects of elevated temperature on metabolism and of elevated CO 2 on the behaviour of large predators may not only affect their foraging behaviour, but also the communities in which their prey live. We used a factorial design to assess how projected warming and acidification create synergies or antagonisms between physiological and behavioural processes, such as swimming activity and feeding behaviour through odour tracking and vision. Temperature increased swimming activity during feeding, independent of CO 2 . Although temperature also increased motivational drive to locate and accept prey, elevated CO 2 negated chemical and visual behavioural responses that enable effective hunting. Fundamental to these effects was the negligible effect of high CO 2 in isolation, but its power to negate the positive effects of temperature when brought in conjunction. The reduced potential to locate prey due to the interactive effects of ocean acidification and warming, in combination with increases in energetic demand, suggests that energetic tradeoffs will be needed for sharks to sustain themselves at an individual and population level in a future ocean. Article in Journal/Newspaper Ocean acidification Wiley Online Library Oikos 126 2 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Ocean warming and acidification alter the physiological performance and behaviour of many small‐bodied fishes, yet the potential interactive effects of these stressors on larger predators remains poorly understood. In particular, the combined effects of elevated temperature on metabolism and of elevated CO 2 on the behaviour of large predators may not only affect their foraging behaviour, but also the communities in which their prey live. We used a factorial design to assess how projected warming and acidification create synergies or antagonisms between physiological and behavioural processes, such as swimming activity and feeding behaviour through odour tracking and vision. Temperature increased swimming activity during feeding, independent of CO 2 . Although temperature also increased motivational drive to locate and accept prey, elevated CO 2 negated chemical and visual behavioural responses that enable effective hunting. Fundamental to these effects was the negligible effect of high CO 2 in isolation, but its power to negate the positive effects of temperature when brought in conjunction. The reduced potential to locate prey due to the interactive effects of ocean acidification and warming, in combination with increases in energetic demand, suggests that energetic tradeoffs will be needed for sharks to sustain themselves at an individual and population level in a future ocean. |
author2 |
Australian Research Council |
format |
Article in Journal/Newspaper |
author |
Pistevos, Jennifer C. A. Nagelkerken, Ivan Rossi, Tullio Connell, Sean D. |
spellingShingle |
Pistevos, Jennifer C. A. Nagelkerken, Ivan Rossi, Tullio Connell, Sean D. Antagonistic effects of ocean acidification and warming on hunting sharks |
author_facet |
Pistevos, Jennifer C. A. Nagelkerken, Ivan Rossi, Tullio Connell, Sean D. |
author_sort |
Pistevos, Jennifer C. A. |
title |
Antagonistic effects of ocean acidification and warming on hunting sharks |
title_short |
Antagonistic effects of ocean acidification and warming on hunting sharks |
title_full |
Antagonistic effects of ocean acidification and warming on hunting sharks |
title_fullStr |
Antagonistic effects of ocean acidification and warming on hunting sharks |
title_full_unstemmed |
Antagonistic effects of ocean acidification and warming on hunting sharks |
title_sort |
antagonistic effects of ocean acidification and warming on hunting sharks |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/oik.03182 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Foik.03182 https://onlinelibrary.wiley.com/doi/pdf/10.1111/oik.03182 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/oik.03182 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/oik.03182 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Oikos volume 126, issue 2 ISSN 0030-1299 1600-0706 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/oik.03182 |
container_title |
Oikos |
container_volume |
126 |
container_issue |
2 |
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1810469187237183488 |