Niedzwiedz, Sarina; Murray, Ayla; Beckschulte, Paula; Monteiro, Cátia; Ruiz, Micaela Belen; Descôteaux, Raphaëlle; Armitage, Phoebe; Boström, Christoffer; Havermans, Charlotte; Kuliński, Karol; Bischof, Kai (2026): In-situ conditions of two macroalgae along an Arctic fjord gradient in August 2024 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995904 (DOI registration in progress)
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Published: 2026-07-17
Abstract:
To investigate the response of Fucus distichus and Saccharina latissima to local environmental conditions along the Woodfjorden gradient in Svalbard, field sampling was conducted in August 2024. Specimens of both species were collected at ten sampling stations distributed along the fjord. The intertidal brown alga Fucus distichus was found at six of the ten stations and was collected by hand during low tide. Meristematic apical tips were cut for further analysis. The subtidal kelp Saccharina latissima was present at nine of the ten stations. At each station, sporophytes of similar size were collected from a water depth of 5 ± 2 m using a plant rake (Plant Rake 19.000, according to Sigurd Olsen, KC Denmark, Silkeborg, Denmark). Circular discs of meristematic tissue (2 cm²) were cut from the basal blade approximately 10 cm above the stipe for further analysis. The maximum quantum yield of photosystem II (Fv/Fm) was determined using a pulse-amplitude-modulated fluorometer (Portable Chlorophyll Fluorometer PAM-2100, Heinz Walz GmbH, Effeltrich, Germany) after 5 min of dark acclimation (n = 7–11 per station and species). Subsequently, all tissue samples were dried in silica gel, which was replaced regularly to ensure complete desiccation. Pigment composition was analyzed by high-performance liquid chromatography (HPLC; Chromaster® system with chilled autosampler 5260, DAD detector 5430, and column oven 5310; VWR-Hitachi International GmbH, Darmstadt, Germany) (n = 5 per station and species). Total carbon and total nitrogen contents were determined using an elemental analyzer (Euro EA 3000 Elemental Analyzer, EuroVector S.P.A., Milan, Italy) (n = 5 per station and species).
Supplement to:
Niedzwiedz, Sarina (submitted): A glimpse into the future of Arctic fjords: Biological communities along environmental gradients.
Related to:
Niedzwiedz, Sarina; Murray, Ayla; Beckschulte, Paula; Monteiro, Cátia; Ruiz, Micaela Belen; Descôteaux, Raphaëlle; Armitage, Phoebe; Boström, Christoffer; Havermans, Charlotte; Kuliński, Karol; Bischof, Kai (2026): Environmental conditions along Woodfjorden, Svalbard in August 2024 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995923
Funding:
European Commission (EC), grant/award no. 101136480: Blue Carbon production, export and sequestration in emerging polar ecosystems (SEA-Quester)
Horizon 2020 of the European Commission (H2020), grant/award no. 869154: The future of Arctic coastal ecosystems - Identifying transitions in fjord systems and adjacent coastal areas (FACE-IT)
Coverage:
Median Latitude: 79.584331 * Median Longitude: 13.718867 * South-bound Latitude: 79.326202 * West-bound Longitude: 13.271302 * North-bound Latitude: 79.709650 * East-bound Longitude: 14.228133
Date/Time Start: 2024-08-20T00:00:00 * Date/Time End: 2024-08-26T00:00:00
Event(s):
Woodfjorden_1 * Latitude: 79.605067 * Longitude: 13.444617 * Date/Time: 2024-08-24T00:00:00 * Location: Woodfjorden * Method/Device: Multiple investigations (MULT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Niedzwiedz, Sarina | |||
| 2 | Species | Species | Niedzwiedz, Sarina | |||
| 3 | Station ID | Stat ID | Niedzwiedz, Sarina | |||
| 4 | DATE/TIME | Date/Time | Niedzwiedz, Sarina | Geocode | ||
| 5 | LATITUDE | Latitude | Niedzwiedz, Sarina | Geocode | ||
| 6 | LONGITUDE | Longitude | Niedzwiedz, Sarina | Geocode | ||
| 7 | Replicates | Repl | # | Niedzwiedz, Sarina | ||
| 8 | Maximum quantum yield of photosystem II | Fv/Fm | Niedzwiedz, Sarina | Portable Chlorophyll Flourometer, Heinz Walz GmbH, Effeltrich, Germany, PAM-2100 | ||
| 9 | Chlorophyll c2, per dry mass | Chl c2/dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 10 | Fucoxanthin, per dry mass | Fuco dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 11 | Violaxanthin, per dry mass | Viola/dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 12 | Antheraxanthin, per dry mass | Anthera/dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 13 | Zeaxanthin, per dry mass | Zea/dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 14 | Chlorophyll a, per dry mass | Chl a/dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 15 | beta-Carotene, per dry mass | b-Car/dm | µg/g | Niedzwiedz, Sarina | High performance liquid chromatography (HPLC), Chromaster systems; with autosampler (chilled) 5260; with DA-detector 5430; with column oven 5310, VWR-Hitachi International GmbH | content in algae |
| 16 | Violaxanthin + Antheraxanthin + Zeaxanthin, per dry mass | VAZ/dm | µg/g | Niedzwiedz, Sarina | content in algae | |
| 17 | (Violaxanthin + Antheraxanthin + Zeaxanthin)/Chlorophyll a ratio | VAZ/Chl a | Niedzwiedz, Sarina | content in algae | ||
| 18 | De-expoxidation state of xanthophyll cycle | DPS | Niedzwiedz, Sarina | |||
| 19 | Pigments, accessory | Pigm acc | µg/g | Niedzwiedz, Sarina | sum ofo accessory pigments (Chlorophyll c2+Fucoxanthin+beta-Carotene) content in algaea | |
| 20 | Pigments, accessory/Chlorophyll a ratio | Pigm acc/Chl a | µg/g | Niedzwiedz, Sarina | content in algae | |
| 21 | Nitrogen | N | % | Niedzwiedz, Sarina | Elemental Analyser (EA), EuroVector S.P.A., Milano, Italy, Euro EA 3000 | content in algae |
| 22 | Carbon | C | % | Niedzwiedz, Sarina | Elemental Analyser (EA), EuroVector S.P.A., Milano, Italy, Euro EA 3000 | content in algae |
| 23 | Carbon/Nitrogen ratio | C/N | Niedzwiedz, Sarina | content in algae |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1712 data points