Kalpitiya lagoon mangrove restoration: Rhizophora stilt root seedling planting tides?

Restoring degraded mangrove zones in Kalpitiya Lagoon requires planting mature propagules (elongated seed pods) during low tide. Field workers insert the pointed hypocotyl end of Rhizophora mucronata seedlings 10 to 15 centimeters vertically into the anaerobic mud. To prevent wave currents from uprooting seedlings when high tide returns, workers lash seedlings to split bamboo stakes driven 50cm deep into the substrate. Planting must occur on intertidal flats submerged for less than six hours per day; continuous water submergence drowns leaf buds.