Net primary production of Laminaria hyperborea along the vertical depth profile based on different diffuse attenuation coefficients

10.1594/PANGAEA.959608Franke, KiaraKiaraFranke0000-0001-6318-8475Universität RostockMatthes, Lisa CLisa CMatthes0000-0002-7362-0417Universität RostockGraiff, AngelikaAngelikaGraiff0000-0001-8754-6281Universität RostockKarsten, UlfUlfKarsten0000-0002-2955-0757Universität RostockBartsch, InkaInkaBartsch0000-0001-7609-2149Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenNet primary production of Laminaria hyperborea along the vertical depth profile based on different diffuse attenuation coefficientsPANGAEA2023blade gradientChlorophyll adepth gradientdiffuse attenuation coefficientdry mass/area ratioFv/FmHelgolandin situ PARKelpnet primary productionoxygen evolutionphotoacclimationPhotosynthesis versus irradiance curvesPrimary productionDATE/TIMEDiffuse attenuation coefficientCommentDEPTH, waterNet primary production of carbonUnderwater quantum sensorCalculated, see abstractHelgoland__CampaignMarine Station Helgoland2014-07-18T00:00:00/2014-09-11T00:00:00Dataset10.1594/PANGAEA.95895010.1111/jpy.1332710.1111/j.1529-8817.2009.00694.x10.3354/cr007672400 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalOver the whole water column, daily diffuse attenuation coefficient (Kd in 1/m) values are based on in situ photosynthetically active radiation (PAR) measurements performed in different depths (1.2, 2.9, 4.4, 6.6 m) during summer 2014. PAR for the algae collection depths is calculated based on daily Kd values. Daily net primary production (NPP in g C/m² seafloor/day) for each sampling depth is calculated with in situ vertical profiles based on daily Kd, leaf area index (Pehlke and Bartsch, 2008) and a photosynthetic quotient (PQ) of 1.18 (Miller III et al. 2009). For comparative purposes, daily NPP values were also calculated using the measured maximum and minimum daily Kd and the mean Kd, which were derived from all daily Kd over the entire sampling period.Additional funding was provided by the Postdoctoral fellowship grant of the Fonds de recherche du Québec - Nature et technologies and the Weston Foundation.7.877537.87954.1925354.1937off Helgoland, North SeaDeutsche Forschungsgemeinschaft, Bonnhttps://doi.org/10.13039/501100001659407670545Seasonal kelp primary production at a rocky shore site: Integrating physiology and biochemistry into ecological modelling