10.1594/PANGAEA.973495Spence-Jones, HelenHelenSpence-Jones0000-0002-2331-5510Alfred Wegener Institute - Wadden Sea Station SyltShama, Lisa N SLisa N SShama0000-0002-9017-9950Alfred Wegener Institute - Wadden Sea Station SyltPANGAEA2025clutch sizeegg diameterExperimentfertilization successGasterosteus aculeatushatching successLaboratory experimentLengthsticklebackWeightSpecies, unique identificationSpecies, unique identification (Semantic URI)Species, unique identification (URI)Type of studyIdentificationTreatmentEggs per clutchEggs, fertilizedEggs, hatchedFertilization success rateEgg hatching successFish, standard lengthFish, wet massFish, egg, diameterCoefficient of variationTrawl netInternational Science Program for Integrative Research in Earth Systems (AWI_INSPIRES)2022-02-03T00:00:00/2022-03-10T00:00:00Dataset10.1594/PANGAEA.97348710.1098/rspb.2024.2913494 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalWe measured several fecundity traits for each clutch of fertilized eggs including clutch size (total number of eggs), average egg size (diameter (mm)), fertilization success and hatching success. The diameter (mm) of all eggs in a clutch was measured to estimate average egg size.8.43655.0252Island of Sylt, GermanyAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://doi.org/10.13039/501100003207INSP-2021Do you remember? Epigenetic and ecological memory to climate variability and extreme events