Supplementary Material

Supplementary Table 1. The inferred parent pairs for parental assignements using larval material in 2019.

Supplementary Table 2. Description and diversity statistics summary, by locus, for wild adults flat oysters from Limfjorden.

Supplementary Table 3. Description and diversity statistics summary, by locus, for wild adults flat oysters from Limfjorden.

Supplementary Table 4. Pairwise (Fst) confidence intervals.

Supplementary Table 5. The inferred parent pairs for each offspring with their probabilities are obtained from the full likelihood method in COLONY.

Supplementary Figure 1. Summary of the swarming events in the hatchery.

Supplementary Figure 2. Cumulative curve. Offspring's genotypes needed to identify all the sib-ship families in a swarming event.

Supplementary Figure 3. (Fst) Heatmap. Samples are represented by each column, whereas pairwise (Fst)values for each pair of sample (Weir and Cockerham) are represented by the cells.

© H.J. Alves Monteiro et al., Published by EDP Sciences 2022