PANGAEA_995663 Chlorophyll a and phaeophytin a measurements from discrete water samples during RV MARIA S. MERIAN cruise MSM129/1 Oelker, Julia; Albinus, Michelle; Karstensen, Johannes; Schlundt, Michael Chlorophyll a and phaeophytin a measurements from discrete water samples during RV MARIA S. MERIAN cruise MSM129/1 2026-06-26 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995663 Investigator Julia Oelker julia.oelker@uni-oldenburg.de Investigator Michelle Albinus michelle.albinus@uol.de Earth Science Event label DATE/TIME LATITUDE LONGITUDE DEPTH, water Chlorophyll a Phaeophytin a Phaeophytin a/Chlorophyll a ratio geoscientificInformation Chlorophyll a CTD/Rosette Fluorescence msm129_1_001 msm129_1_002 msm129_1_003 MSM129/1 MSM129/1_3-1 MSM129/1_6-1 MSM129/1_7-1 Phaeophytin a CTD, Sea-Bird, SBE 911plus Fluorometer, Turner Designs, Trilogy 7200-002 [EPA Method 445.0] Fluorometer, Turner Designs, Trilogy 7200-002 Maria S. Merian 2024-05-25 2024-06-04 Complete 49.78299 59.16683 -48.56339 11.48005 6.5 m (DEPTH, water) 100.0 m (DEPTH, water) AIMS3 DAM CDRmare - AIMS3: Alternate scenarios, Innovative technologies, and Monitoring approaches for Sub-Seabed Storage of carbon dioxide 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

Leobener Str.

Bremen Bremen 28359 Germany online 150 data points text/tab-separated-values Karstensen, Johannes; Schlundt, Michael; Anselm, Norbert; Balan, Vasile-Sorin; Behr, Yurid; Boskamp, Grete; Börner, Gregor; Brechtelsbauer, Stefanie; Damaske, Daniel; Glüsen, Lasse Alexander; El Rahman Hassoun, Abed; Krahmann, Gerd; Lösel, Christiane; Marki, Alexandra; Michels, Emil; Oelker, Julia; Olbricht, Hannah; Ripke, Kim; Rehage, Marianne; Riemann-Campe, Kathrin (2025): Understanding processes and long-term variability in the Labrador Sea, Cruise No. MSM129/1, 25. May 2024 - 05. June 2024, Rostock (Germany) - St. John's (Canada). MARIA S. MERIAN-Berichte, Begutachtungspanel Forschungsschiffe, MSM129/1, 25 pp, https://doi.org/10.48433/cr_msm129_1 Oelker, Julia; Karstensen, Johannes; Schlundt, Michael (2026): Continuous optical chlorophyll-a and turbidity data along RV MARIA S. MERIAN cruise MSM129/1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.992565 Arar, E J; Collins, G B (1997): Method 445.0 In Vitro Determination of Chlorophyll a and Pheophytin ain Marine and Freshwater Algae by Fluorescence. U.S. Environmental Protection Agency, Washington, DC, 1997, https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=NERL&dirEntryId=309417, https://download.pangaea.de/reference/107393/attachments/M445_0.PDF Turner Designs (2019): Trilogy Laboratory Fluorometer User's Manual, Version 1.7. San Jose, CA, USA, https://download.pangaea.de/reference/124949/attachments/998-7210.pdf

This dataset was collected during the cruise MSM129/1 with RV MARIA S. MERIAN from Warnemünde, Germany to St. John's, Canada. It contains chlorophyll-a measurements [µg/l] from water samples collected from the seawater supply (Reinseewassersystem, RSWS) as well as from three CTD casts to calibrate the fluorometers of the RSWS system and the CTD, respectively. The outflow of a PocketFerrybox that was connected to the seawater supply in the hangar was used for sampling. It takes a substantial amount of time for the water to reach the hanger from the intake point. The time delay between the sensor readings of the RSWS and the PocketFerrybox was determined and the timestamps of the water sampling were adjusted accordingly. Given latitute and longitude refer to this corrected timestamp. The original time of water sampling in the hangar is given as an additional column with the comment time of sampling. To obtain chl-a concentrations, water samples were filtered onboard through 0.7 μm pore size, glass fiber filters (Whatmann GF/F) under low vacuum. Filters were frozen immediately at -80 °C until extraction in laboratory by 90% acetone method. Concentrations were calculated from fluorescence measured with a pre-calibrated Turner Design TD 7200-02 laboratory fluorometer (EPA445.0, Turner Manual). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995663"!

http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://aims3.cdrmare.de/en/ AIMS3 https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=NERL&dirEntryId=309417 Method 445.0 In Vitro Determination of Chlorophyll a and Pheophytin ain Marine and Freshwater Algae by Fluorescence https://doi.org/10.48433/cr_msm129_1 Understanding processes and long-term variability in the Labrador Sea, Cruise No. MSM129/1, 25. May 2024 - 05. June 2024, Rostock (Germany) - St. John's (Canada) https://doi.pangaea.de/10.1594/PANGAEA.992565 Continuous optical chlorophyll-a and turbidity data along RV MARIA S. MERIAN cruise MSM129/1 https://en.wikipedia.org/wiki/RV_Maria_S._Merian Maria S. Merian https://hdl.handle.net/10013/epic.32187.d001 Chlorophyll a DIF 9.4 2026-06-26 2026-06-26