Description: 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 the percentage of healthy area (as % blade area with Fv/Fm > 0.6). 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.996551",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Date",
"Day of experiment",
"Event label",
"Replicate",
"Sporophyte blade area, healthy",
"Sporophyte blade area, total",
"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: 21.10.2026 02:31
Time ranges: 2024-06-24 - 2024-07-08
Accessed 1 times.