Analysis of arctic kelp populations on the west coast of Svalbard, Norway

Niedzwiedz, Sarina; Voigt, Clara; Andersen, Sebastian; Diehl, Nora; Damsgård, Børge; Bischof, Kai

Analysis of arctic kelp populations on the west coast of Svalbard, Norway

We assessed how Arctic kelp populations react to their local in situ environment in August 2022. Therefore, we sampled Saccharina latissima sporophytes from eight populations at several latitudes on the west coast of Svalbard, Norway, and correlated these results to the abiotic conditions they experienced. At each sampling station, similar sized sporophytes (n=5) were collected from 5±2 m water depth using a plant rake (Plant rake 19.000, acc. to Sigurd Olsen, KC Denmark, Silkeborg, Denmark). Subsamples were taken from each sporophyte by cutting discs, 2 cm² in diameter, from the meristem, within two hours of sampling. All samples were dried in silica gel, which was replaced regularly. Pigment analysis was analysed with a High-Performance Liquid Chromatograph (HPLC, LaChromElite® system, L-2200 autosampler (chilled), DA-detetctor L-2450; VWR-Hitachi International GmbH, Darmstadt, Germany). Antioxidant activity (AOA) was determined following the ABTS·+ (2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid, 7 mM in biDest H2O) assay. Total carbon and total nitrogen content were analysed with an elemental analyser (Euro EA 3000 Elemental Analyser, EuroVector S.P.A., Milano, Italy).

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Mots clés AGROVOC

antheraxanthin carbon denmark italy nitrogen pigments species svalbard violaxanthin zeaxanthin

Informations bibliographiques

Editeur

PANGAEA

D'autres materias

Silkeborg; Calculated; Plant rake; Arctic biodiversity & livelihoods; Elemental analyser (ea); Svalbard_kelp_5; Svalbard_kelp_3; Unique identification (uri); Beta-carotene; Euro ea 3000; Underwater light climate; Carbon + nitrogen; See abstract; Milano; Accessory; Kc denmark; Latitude of event; Fucoxanthin; Tolerances; Violaxanthin + antheraxanthin + zeaxanthin/chlorophyll a ratio; Event label; Per dry mass; Antioxidant activity; High performance liquid chromatography (hplc); Replicates; Lachromelite (l-2200) autosampler (chilled); Svalbard_kelp_1; Longitude of event; Station label; Face-it; Svalbard_kelp_7; Da-detector l-2450; According to sigurd olsen; Svalbard_kelp_4; Chlorophyll c; Eurovector s.p.a.; Antioxidative activity; Accessory/chlorophyll a ratio; Svalbard_kelp_8; Sst; Type of study; No. 19.000; Chlorophyll a; C:n; Unique identification; De-epoxidation state; Svalbard_kelp_2; Unique identification (semantic uri); Svalbard_kelp_6; Date/time of event; Violaxanthin + antheraxanthin + zeaxanthin

Langue

anglais

Format

text/tab-separated-values, 796 data points

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CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends), Access constraints: access rights needed, info:eu-repo/semantics/restrictedAccess

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Dataset

Sur AGRIS depuis: 2024-11-28

Date de modification: 2025-01-28

Format: Dublin Core

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Cette notice bibliographique a été fournie par Alfred Wegener Institute for Polar and Marine Research

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