Work

Heat stress response of adult Saccharina latissima sporophytes to gametophyte priming: growth and Fv/Fm

Year: 2026

Type: dataset

Abstract: We assessed the heat tolerance of adult Saccharina latissima sporophytes reared in mariculture under heat stress and in response to gametophyte priming. Primed (0°C, 10°C, 20°C; 3 weeks) gametophytes (Lofoten 2023; 10°C mixed culture; n = 5) were sown on ropes and reared in a mariculture experiment (2 months hatchery, 4 months mariculture). Adult sporophytes were sampled and exposed to a 14-day heat stress treatment at 20°C, 21.5°C, 23°C with a 10°C control group. We measured growth (length and blade area) and Fv/Fm. The mariculture experiment took place at the hatchery of Polaralge AS (Sandhornøy, Norway; December - February 2024) and the deployment site of Lofoten Blue Harvest (Lilje Engla, Lofoten, Norway; 68°16'02.8"N 15°06'14.8"E; February – June 2024). The laboratory experiment was carried out at the Alfred Wegener Institute in Bremerhaven, Germany.

Source: Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research)

DOI: 10.1594/pangaea.996550

Authors: Steiner, Niko, Nilsen, Anne M, Gauci, Clément, Jueterbock, Alexander, Bartsch, Inka

Language: English

Topic: Marine and coastal plant biology

Subfield: Oceanography

Field: Earth and Planetary Sciences

Domain: Physical Sciences

SDGs: Zero hunger, Life below water

Open Access status: green

OpenAlex ID: W7204498221

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