Sexual reproduction in Heterozostera tasmanica (Martens ex Ascherson) den Hartog (Campey et al., 2002) was variable in time and space and was not evident in some years. The maximum seed production was <20% over 3 years, but some seeds may have been exported from the system by hydrody-namic processes or eaten by predators. It is likely that pollen transport and capture is similar to that of Nanozostera and Zostera given the similarities in the inflorescence and floral structures (see below). Note that Les et al. (2002) and Waycott et al. (Chapter 2) collapse Heterzostera into Zostera.

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