Franke, Kiara; Matthes, Lisa C; Graiff, Angelika; Karsten, Ulf; Bartsch, Inka (2023): Dataset for estimating the photosynthetic oxygen production of Laminaria hyperborea off the island of Helgoland in summer 2014 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.958950
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Published: 2023-06-15 • DOI registered: 2023-07-14
Abstract:
The impact of variable underwater photosynthetically active radiation (PAR) and photosynthetic parameters on photosynthetic oxygen production of Laminaria hyperborea off the island of Helgoland (North Sea, Germany) was investigated throughout summer 2014. L. hyperborea was sampled along a depth gradient (0.5, 2, 4, 6 m) and discs from three different blade regions (5, 25 and 50 cm above the stipe-blade transition zone) were set into photosynthesis versus irradiance (PI) curves. After cutting and before the oxygen incubation, maximum quantum yield (Fv/Fm) were measured as a health indicator. PI-curve parameters were normalized to either fresh mass or disc area. Additionally, chlorophyll a content was measured in each disc and normalized to the same two parameters as PI parameters. In situ PAR was measured in different depths (1.2, 2.9, 4.4, 6.6 m) to gain daily diffuse vertical attenuation coefficient (Kd). PAR along the vertical depth profile was calculated and together with PI-curve parameters oxygen production was calculated along the vertical depth profile. Leaf area index (Pehlke and Bartsch, 2008) was used to extrapolate oxygen production rates to seafloor and a photosynthetic quotient (PQ) of 1.18 (Miller III et al., 2009) to convert rates into carbon fixation rates. This net primary production (NPP) was given along the vertical depth profile based on different Kd values (daily Kd, mean Kd, minimum Kd, maximum Kd).
Keyword(s):
Supplement to:
Franke, Kiara; Matthes, Lisa C; Graiff, Angelika; Karsten, Ulf; Bartsch, Inka (2023): The challenge of estimating kelp production in a turbid marine environment. Journal of Phycology, jpy.13327, https://doi.org/10.1111/jpy.13327
Related to:
Miller, Harlan L III; Neale, Patrick J; Dunton, Kenneth H (2009): Biological weighting functions for UV inhibition of photosynthesis in kelp Laminaria hyperborea (Phaeophyceae). Journal of Phycology, 45(3), 571-584, https://doi.org/10.1111/j.1529-8817.2009.00694.x
Pehlke, Constanze; Bartsch, Inka (2008): Changes in depth distribution and biomass of sublittoral seaweeds at Helgoland (North Sea) between 1970 and 2005. Climate Research, 37, 135-147, https://doi.org/10.3354/cr00767
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 407670545: Seasonal kelp primary production at a rocky shore site: Integrating physiology and biochemistry into ecological modelling
Coverage:
Median Latitude: 54.193939 * Median Longitude: 7.871485 * South-bound Latitude: 54.190500 * West-bound Longitude: 7.858880 * North-bound Latitude: 54.197220 * East-bound Longitude: 7.879000
Date/Time Start: 2014-07-17T15:15:00 * Date/Time End: 2014-09-12T09:30:00
Event(s):
Helgoland_2014_1 * Latitude: 54.192530 * Longitude: 7.879000 * Date/Time Start: 2014-07-17T17:15:00 * Date/Time End: 2014-09-12T11:30:00 * Elevation: -1.2 m * Location: off Helgoland, North Sea * Campaign: Helgoland * Basis: Marine Station Helgoland * Method/Device: Underwater quantum sensor (UQS)
Helgoland_2014_2 * Latitude: 54.192970 * Longitude: 7.878450 * Date/Time Start: 2014-07-17T17:15:00 * Date/Time End: 2014-09-12T11:30:00 * Elevation: -2.9 m * Location: off Helgoland, North Sea * Campaign: Helgoland * Basis: Marine Station Helgoland * Method/Device: Underwater quantum sensor (UQS)
Helgoland_2014_3 * Latitude: 54.192970 * Longitude: 7.878450 * Date/Time Start: 2014-07-17T17:15:00 * Date/Time End: 2014-09-12T11:30:00 * Elevation: -4.4 m * Location: off Helgoland, North Sea * Campaign: Helgoland * Basis: Marine Station Helgoland * Method/Device: Underwater quantum sensor (UQS)
Comment:
Additional funding was provided by the Postdoctoral fellowship grant of the Fonds de recherche du Québec - Nature et technologies and the Weston Foundation.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
7 datasets
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Datasets listed in this bundled publication
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Chlorophyll a content of Laminaria hyperborea off the island of Helgoland in summer 2014. https://doi.org/10.1594/PANGAEA.958897
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Maximum quantum yield measured in Laminaria hyperborea off the island of Helgoland in summer 2014. https://doi.org/10.1594/PANGAEA.958898
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Net primary production of Laminaria hyperborea along the vertical depth profile based on different diffuse attenuation coefficients. https://doi.org/10.1594/PANGAEA.959608
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Photosynthetically active radiation measured in different water depths near the island of Helgoland in summer 2014. https://doi.org/10.1594/PANGAEA.958761
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Photosynthesis versus irradiance curves of Laminaria hyperborea off the island of Helgoland in summer 2014. https://doi.org/10.1594/PANGAEA.958899
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Photosynthesis versus irradiance curve parameters of Laminaria hyperborea off the island of Helgoland in summer 2014. https://doi.org/10.1594/PANGAEA.958900
- Franke, K; Matthes, LC; Graiff, A et al. (2023): Information on Laminaria hyperborea samples off the island of Helgoland in summer 2014. https://doi.org/10.1594/PANGAEA.958896