PANGAEA_967348 Sex-specific survival of the calanoid marine copepod Acartia tonsa under combined exposure to hypoxia and marine heatwave events Vermandele, Fanny; Sasaki, Matthew; Winkler, Gesche; Dam, Hans G; Madeira, Diana; Calosi, Piero Sex-specific survival of the calanoid marine copepod Acartia tonsa under combined exposure to hypoxia and marine heatwave events 2024-10-10 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.967348 Investigator Fanny Vermandele fanny.vermandele@uqar.ca Earth Science Type of study Sampling date/time, experiment Treatment: temperature Treatment: oxygen saturation Treatment Acartia tonsa, sex Number Aquaria ID Acartia tonsa Acartia tonsa, survival geoscientificInformation Biological sample copepod hypoxia Laboratory experiment Long_Island_Sound_Atonsa marine heatwaves (MHWs) physiology sex-specific responses Complete 41.320725 41.320725 -72.001643 -72.001643 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 352 data points text/tab-separated-values Vermandele, Fanny; Sasaki, Matthew; Winkler, Gesche; Dam, Hans G; Madeira, Diana; Calosi, Piero (2024): When the Going Gets Tough, the Females Get Going: Sex-Specific Physiological Responses to Simultaneous Exposure to Hypoxia and Marine Heatwave Events in a Ubiquitous Copepod. Global Change Biology, 30(10), e17553, https://doi.org/10.1111/gcb.17553 Dam, Hans G; deMayo, James A; Park, Gihong; Norton, Lydia; He, Xuejia; Finiguerra, Michael B; Baumann, Hannes; Brennan, Reid S; Pespeni, Melissa H (2021): Rapid, but limited, zooplankton adaptation to simultaneous warming and acidification. Nature Climate Change, 11(9), 780-786, https://doi.org/10.1038/s41558-021-01131-5

Specimens of the marine calanoid copepod Acartia tonsa were exposed for five days under laboratory conditions to the isolated or combined effects of hypoxia and a marine heatwave event to test for their sex-specific life-history and physiological responses to these stressors. Four treatments were used: Control (C: 18 °C, 100 % O₂ sat.), Hypoxia (H: 18 °C, 35 % O₂ sat.), marine heatwave (MHW: 25 °C, 100 % O₂ sat.) and combined conditions (HMHW: 25 °C, 35 % O₂ sat.). This dataset compiles the survival data, expressed in terms of percentage and as the number of individuals at the beginning and end of exposure, for males and females, following the five-day exposure experiment. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.967348"! ** The experiment was conducted in the Marine Ecological and Evolutionary Physiology Laboratory (MEEP) at the University of Quebec in Rimouski (UQAR), Rimouski, QC, Canada. Copepods were maintained following the stock culture culturing protocol described in Dam et al. 2021 (https://doi.org/10.1038/s41558-021-01131-5). Namely, approximately 200 copepods were kept in three 5 L aquaria filled with artificial seawater kept at a salinity of 28.4 ± 0.5. The physicochemical parameters of the seawater were the following: temperature of 18 ± 0.4 °C, oxygen saturation of 93.7 ± 6.0 %, pH NBS of 8.20 ± 0.09. The photoperiod was kept at 13h light: 11 h dark. Copepods were fed ad libitum with a mixture of three phytoplankters: Tetraselmis sp., Thalassiosira weissflogii and Rhodomonas salina.

https://doi.org/10.1038/s41558-021-01131-5 Rapid, but limited, zooplankton adaptation to simultaneous warming and acidification https://doi.org/10.1111/gcb.17553 When the Going Gets Tough, the Females Get Going: Sex-Specific Physiological Responses to Simultaneous Exposure to Hypoxia and Marine Heatwave Events in a Ubiquitous Copepod PANGAEA_967352 DIF 9.4 2024-10-10 2026-04-15