Biochemical and morphological traits of the sugar kelp Saccharina latissima


Broadly distributed seaweeds, such as the boreal-temperate kelp species Saccharina latissima, contain a multitude of metabolites supporting acclimation to environmental changes, such as temperature and salinity. In Europe, S. latissima occurs along the coasts from Spitsbergen to Portugal, including the Baltic Sea, exhibiting great morphological plasticity. We investigated the morphological and biochemical traits of field-collected sporophytes from 16 different locations across the species entire European distributional range in relation to local abiotic conditions (sea surface temperature, sea surface salinity, sampling depth). By statistically linking morphological (frond length:width), biochemical (mannitol, phlorotannins, C:N), and genetic data of the mitochondrial cytochrome-c-oxidase I gene (COI-5P) to the geographic abiotic information, we aimed to obtain first insights into the site-specific adaptive features of this species. Mannitol concentrations were analyzed using a HPLC. The molar C:N ratio was analyzed with an elemental analyzer. Phlorotannins were analyzed using the photometric Folin-Ciocalteu method.

COI-5P sequences were deposited in GenBank under the accession no.s ON661800-ON661872 ( to

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Creator Diehl, Nora (ORCID: 0000-0002-7245-340X); Steiner, Niko ORCID logo; Bischof, Kai ORCID logo; Karsten, Ulf ORCID logo; Heesch, Svenja ORCID logo
Publisher PANGAEA
Publication Year 2023
Funding Reference Deutsche Forschungsgemeinschaft, Bonn Crossref Funder ID VA 105/25-1 Functional variability and dynamics of responses of marine forests to gobal change; German Research Foundation Crossref Funder ID KA899/30-13 SPP 1158: Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Horizon 2020 Crossref Funder ID 869154 Arctic Biodiversity & Livelihoods (FACE-IT)
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 1008 data points
Discipline Earth System Research
Spatial Coverage (-9.581W, 42.083S, 19.036E, 78.925N); Portugal; Norway; Helgoland, North Sea; Germany, Baltic Sea; France; Spain; Spitsbergen; Sweden
Temporal Coverage Begin 2018-06-15T00:00:00Z
Temporal Coverage End 2020-07-10T00:00:00Z