Chlorophyll a content of Laminaria hyperborea off the island of Helgoland in summer 2014

doi:doi:10.1594/PANGAEA.958897

Chlorophyll a content of Laminaria hyperborea off the island of Helgoland in summer 2014

Laminaria hyperborea off the island of Helgoland (North Sea, Germany) was sampled along a depth gradient (0.5, 2, 4, 6 m) throughout summer 2014. Chlorophyll a content was measured. Discs were cut from three different blade regions (5, 25 and 50 cm above the stipe-blade transition zone) and normalized to either dry mass, fresh mass or disc area. The samples were freeze-dried for approximately 36 h (Beta 1–8 LDplus, Christ, Osterode am Harz, Germany), finely ground for several minutes using steel grinding balls (3 mm diameter) in a Mikro-Dismembrator U (Braun Biontech International, Melsungen, Germany), cooled centrifuged (Centrifuge 3K10, Sigma, Osterode, Germany), and measured in the spectrophotometer (U-3310, Hitachi High-Tech, Japan) at two wavelengths (347 and 664.5 nm).

BibTex:

@dataset{Franke_Kiara_and_Matthes_Lisa_C_and_Graiff_Angelika_and_Karsten_Ulf_and_Bartsch_Inka_2023,
    abstract = {Laminaria hyperborea off the island of Helgoland (North Sea, Germany) was sampled along a depth gradient (0.5, 2, 4, 6 m) throughout summer 2014. Chlorophyll a content was measured. Discs were cut from three different blade regions (5, 25 and 50 cm above the stipe-blade transition zone) and normalized to either dry mass, fresh mass or disc area. The samples were freeze-dried for approximately 36 h (Beta 1–8 LDplus, Christ, Osterode am Harz, Germany), finely ground for several minutes using steel grinding balls (3 mm diameter) in a Mikro-Dismembrator U (Braun Biontech International, Melsungen, Germany), cooled centrifuged (Centrifuge 3K10, Sigma, Osterode, Germany), and measured in the spectrophotometer (U-3310, Hitachi High-Tech, Japan) at two wavelengths (347 and 664.5 nm).},
    author = {Franke, Kiara and Matthes, Lisa C and Graiff, Angelika and Karsten, Ulf and Bartsch, Inka},
    doi = {10.1594/PANGAEA.958897},
    institution = {PANGAEA (Oceans)},
    keyword = {'Chlorophyll a', 'Fm', 'Fv', 'Helgoland', 'Kelp', 'Photosynthesis versus irradiance curves', 'area ratio', 'blade gradient', 'depth gradient', 'diffuse attenuation coefficient', 'dry mass', 'in situ PAR', 'net primary production', 'oxygen evolution', 'photoacclimation', 'primary production'},
    title = {Chlorophyll a content of Laminaria hyperborea off the island of Helgoland in summer 2014},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-958897},
    year = {2023}
}