USAP-DC

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RUI: Synergistic effects of Ocean Acidification and Warming on Larval Development in Antarctic Fishes Start Date: 2012-09-01 End Date: 2015-08-31 Description/Abstract Ocean acidification and increased temperatures are projected to be the primary impacts of global climate change on polar marine ecosystems over the next century. While recent research has focused on the effects of these drivers on calcifying organisms, less is known about how these changes may affect vertebrates. This research will focus on two Antarctic fishes, Trematomus bernacchii and Pagothenia borchgrevinki. Fish eggs and larvae will be collected in McMurdo Sound and reared under different temperature and pH regimes. Modern techniques will be used to examine subsequent changes in physiology, growth, development and gene expression over both short and long timescales. The results will fill a missing gap in our knowledge about the response of non-calcifying organisms to projected changes in pH and temperature. Results will be widely disseminated through publications as well as through presentations at national and international meetings; raw data will also be made available through open-access, web-based databases. This project will support the research and training of three graduate and three undergraduate students. As well, this project will foster the development of two modules on climate change and ocean acidification for an Introduction to Biology course. Personnel Person Role Miller, Nathan Investigator Todgham, Anne Co-Investigator Funding Antarctic Organisms and Ecosystems Award # 1142122 AMD - DIF Record(s) USAP-1142122 Data Management Plan None in the Database Product Level: Not provided Datasets Repository Title (link) Format(s) Status USAP-DC Physiological and biochemical measurements on juvenile Antarctic rockcod (Trematomus bernacchii) from McMurdo Sound None exist USAP-DC Physiological and biochemical measurements on Antarctic dragonfish (Gymnodraco acuticeps) from McMurdo Sound None exist USAP-DC Antarctic emerald rockcod have the capacity to compensate for warming when uncoupled from CO2-acidification None exist USAP-DC Thermal windows and metabolic performance curves in a developing Antarctic fish None exist Publications Davis, B.E., Miller, N.A., Flynn, E.E. and Todgham, A.E. 2016. Juvenile Antarctic rockcod, Trematomus bernacchii, are physiologically robust to CO2-acidified seawater. J. Exp. Biol. 219:1203-13. doi: 10.1242/jeb.133173 (doi:10.1242/jeb.133173) Flynn, E.E., Bjelde, B.E., Miller, N.A and Todgham, A.E. 2015. Ocean acidification exerts negative effects under warming conditions in a developing Antarctic fish. Cons. Physiol. 3: cov033. doi: 10.1093/conphys/cov033 (doi:10.1093/conphys/cov033) Flynn, E. E., & Todgham, A. E. (2017). Thermal windows and metabolic performance curves in a developing Antarctic fish. Journal of Comparative Physiology B, 188(2), 271–282. (doi:10.1007/s00360-017-1124-3) Davis, B. E., Flynn, E. E., Miller, N. A., Nelson, F. A., Fangue, N. A., & Todgham, A. E. (2017). Antarctic emerald rockcod have the capacity to compensate for warming when uncoupled from CO2‐acidification. Global Change Biology, 24(2). (doi:10.1111/gcb.13987) Davis, B. E., Komoroske, L. M., Hansen, M. J., Poletto, J. B., Perry, E. N., Miller, N. A., … Fangue, N. A. (2018). Juvenile rockfish show resilience to CO2-acidification and hypoxia across multiple biological scales. Conservation Physiology, 6(1). (doi:10.1093/conphys/coy038) Connon, R. E., Jeffries, K. M., Komoroske, L. M., Todgham, A. E., & Fangue, N. A. (2018). The utility of transcriptomics in fish conservation. Journal of Experimental Biology, 221(2). (doi:10.1242/jeb.148833) Todgham, A.E., Mandic, M. 2020. Understanding the metabolic capacity of Antarctic fishes to acclimate to future ocean conditions. Integrative and Comparative Biology 60: 1425-1437. (doi:10.1093/icb/icaa121) Naslund, A. W., Davis, B. E., Hobbs, J. A., Fangue, N. A., & Todgham, A. E. (2021). Warming, not CO2-acidified seawater, alters otolith development of juvenile Antarctic emerald rockcod (Trematomus bernacchii). Polar Biology. (doi:10.1007/s00300-021-02923-3) Todgham, A. E., Crombie, T. A., & Hofmann, G. E. (2016). The effect of temperature adaptation on the ubiquitin-proteasome pathway in notothenioid fishes. Journal of Experimental Biology. (doi:10.1242/jeb.145946) Platforms and Instruments