Niedzwiedz, Sarina; Diehl, Nora; Fischer, Philipp; Bischof, Kai (2022): Seasonal and inter-annual variability in the heatwave tolerance of the kelp Saccharina latissima [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949740
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Abstract:
Temperature is a major driver for the geographical distribution of organisms, such as the foundation kelp species Saccharina latissima. Globally rising sea surface temperatures and intensification of marine heatwaves have already led to local loss of kelp populations. We investigated temporal variations in the thermal susceptibility of S. latissima. Therefore, we assessed the stress responses of field sporophytes sampled from Helgoland (German Bight) to an experimental heat wave scenario in June 2018, August 2018, and August 2019. The experiment in June 2018 was conducted by Diehl et al. (2021a) and the respective dataset (Diehl et al. 2021b, https://doi.org/10.1594/PANGAEA.931637) was re-evaluated for this study. Treatment temperatures (18, 20, 22, 24 °C) were based on 18 °C summer mean sea surface temperature on Helgoland as control, and Δ+2, Δ+4, Δ+6 °C as temperature-amplitude treatments, mimicking marine heatwaves. After a three-days wound healing phase, seven days of temperature acclimation (day 0-7) and seven days of temperature treatment (day 8-14) followed. The survival, growth and maximum photosynthetic quantum yield (Fv/Fm; June 2018/August 2018: ImagingPAM, Walz Imaging PAM Maxi Version M-series; August 2019: Portable Chlorophyll Fluorometer PAM-2100, Heinz Walz GmbH, Effeltrich, Germany) were measured on day 0 and day 14. To highlight changes as response to the experimental heat wave, physiological parameters were shown as percentage of the initial values. Absolute concentrations of pigments were analyzed using a HPLC. Afterwards, accessory pigment (Acc) and xanthophyll cycle pigment (VAZ) concentration, as well as the de-epoxidation state of the xanthophyll cycle (DPS) and ratios were calculated.
Keyword(s):
Supplement to:
Niedzwiedz, Sarina; Diehl, Nora; Fischer, Philipp; Bischof, Kai (2022): Seasonal and inter‐annual variability in the heatwave tolerance of the kelp Saccharina latissima (Laminariales, Phaeophyceae). Phycological Research, 70(4), 212-222, https://doi.org/10.1111/pre.12501
Related to:
Diehl, Nora; Roleda, Michael Y; Bartsch, Inka; Karsten, Ulf; Bischof, Kai (2021): Summer Heatwave Impacts on the European Kelp Saccharina latissima Across Its Latitudinal Distribution Gradient. Frontiers in Marine Science, 8, https://doi.org/10.3389/fmars.2021.695821
Diehl, Nora; Roleda, Michael Y; Bartsch, Inka; Karsten, Ulf; Bischof, Kai (2021): Summer heatwave impacts on the European kelp Saccharina latissima across its latitudinal distribution gradient – raw data to temperature-amplitude experiment with field material from five different locations. PANGAEA, https://doi.org/10.1594/PANGAEA.931637
Further details:
Colombo-Pallotta, María Florencia; García-Mendoza, Ernesto; Ladah, Lydia B (2006): Photosynthetic performance, light absorption, and pigment composition of Macrocystis pyrifera (Laminariales, Phaeophyceae) blades from different depths. Journal of Phycology, 42(6), 1225-1234, https://doi.org/10.1111/j.1529-8817.2006.00287.x
Coverage:
Median Latitude: 54.186090 * Median Longitude: 7.908310 * South-bound Latitude: 54.181670 * West-bound Longitude: 7.903300 * North-bound Latitude: 54.188300 * East-bound Longitude: 7.918330
Date/Time Start: 2018-07-03T06:00:00 * Date/Time End: 2019-09-26T06:00:00
Event(s):
Helgoland_Slatissima_2018a * Latitude: 54.181670 * Longitude: 7.918330 * Date/Time: 2018-06-26T00:00:00 * Location: Helgoland, North Sea * Method/Device: Sampling by diver (DIVER) * Comment: Water depth 3-5 m
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1683 data points