Description: We assessed the heat tolerance of adult Saccharina latissima sporophytes reared in mariculture under heat stress and in response to sporopyhte 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 sporophytes from the 0°C gametophyte priming treatment were recovered at 10°C for 24 days. Meristematic discs were exposed to a 1-day sporophyte priming trigger (T). A control group (C) remained at 10°C. After 3 days recovery at 10°C both groups were subjected to a 7-day heat stress treatment at 20°C, 21.5°C, 23°C, and 25°C, where we measured growth (disc 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.
Global identifier:
Doi(
"10.1594/PANGAEA.996552",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Area",
"Date",
"Day of experiment",
"Event label",
"Maximum quantum yield of photosystem II",
"Replicate",
"Sample ID",
"Treatment",
"Treatment: temperature",
"Type of study",
],
methods: [
"Image analysis NIH ImageJ",
"Pulse-Amplitude-Modulated (PAM) fluorometer, WALZ GmbH, Germany, M-Series",
],
},
)
Tags: Deutschland ? Temperatur ? Marikultur ? Hitzewelle ? Hitzebelastung ? Studie ? Laborversuch ? Kelp ? thermal priming ? thermal tolerance ?
Bounding boxes: 8.58052° .. 8.58052° x 53.53327° .. 53.53327°
License: Creative Commons Namensnennung 4.0 (Data access requires registration)
Language: Englisch/English
Modified: 2026-10-15
Last harvest: 20.10.2026 03:39
Time ranges: 2024-07-11 - 2024-07-26
Accessed 1 times.