Figure 5: Effects of tidal shifts and circadian cycle on egg release by Fucus guiryi and Fucus vesiculosus. | Scientific Reports

Figure 5: Effects of tidal shifts and circadian cycle on egg release by Fucus guiryi and Fucus vesiculosus.

From: Temporal windows of reproductive opportunity reinforce species barriers in a marine broadcast spawning assemblage

Figure 5

Cumulative egg release (n = 8 ± SE) under high tide between 8:00–12:00 h, 12:01–16:00 h, 16:01–20:00 h and constant immersion (no tidal). Black and white bars represent the means of egg release at night and day, respectively. Different letters above bars indicate significant differences (PERMANOVA, p < 0.05).

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