Grantville, VIC

This project trialled a novel mangrove pod design that prevented wave action, thereby promoting mangrove establishment. The project also aimed to engage with local communities and stakeholders to promote awareness of nature-based coastal defences. 210 pods were deployed, each with a single mangrove seed or seedling inside. As of mid 2022, mangroves are surviving and monitoring is still ongoing to measure any long-term impacts on shoreline erosion. The project was completed by Melbourne University’s National Centre for Coasts and Climate in partnership with Hobsons Bay council. It was funded by a Climate Change Innovation Grant from the Victorian Department of Land Water and Planning. Related projects at Altona and Lang Lang, VIC were also funded with this grant.

Project details

Mangroves

Method: Hybrid, Planting: direct seeding

Mangrove species: Avicennia marina

Planting density: 1 seed per pod

Seedling age at planting (months): 0, 12

Hybrid structure: Mangrove planting pods

Hybrid structure height (m): 0.3; 0.4

Hybrid structure width (m): 29-35

General information

Approach

Mangroves

Geographic context

Bay

Organisation responsible

University of Melbourne

Primary objective

Coastal protection

Coastal hazard

Erosion

Asset vulnerable

Recreational, Built

Area of project (ha)

0.05

Date of completion

2019

Cost ($AUD)

$445,776 (split)

Source of project funding

State government

Project approvals needed

State

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