Benefits and costs of alternate seagrass restoration approaches

Benefits and costs of alternate seagrass restoration approaches

Integrated economic frameworks can be used to understand the trade-offs between different marine habitat restoration projects, and establish which restoration configurations will deliver the largest benefits relative to costs. Here we use a benefit-cost analysis to explore how key factors influence the viability of seagrass restoration projects in Western Australia. We compared the costs of: replanting and reseeding methods, professional and volunteer-based methods, urban and remote locations, and, different spatial extents. Economic benefits were estimated for the carbon sequestration capabilities of restored meadows, and for the non-market (intangible) values that seagrass habitats generate. With the exclusion of the professional-labour replanting scenarios, where costs exceeded benefits, all scenarios had positive net present values. Contingent on the assumptions made, the most worthwhile investments are larger-scale, volunteer-based restoration projects that employ the reseeding method.

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Hitching a ride on Hercules: how oyster reefs form on mud banks in the absence of hard surfaces

July 30, 2020

Researchers survey remnant oyster reef in the Rchmond River mudflat
Gideon Heller-Wagner and Ian McLeod of James Cook University survey remnant oyster reefs on intertidal mudflats of the Richmond River at Ballina, NSW. Image: Pat Dwyer, NSW DPI

Layton, Cayne

Postdoctoral Researcher
Partner Organisation 

Institute for Marine and Antarctic Studies, Hobart, Tasmania


Current activities

Project E5 - The role of restoration in conserving matters of national environmental significance

A blenny in shellfish reef habitat
A beneficiary of restoration. The Oyster Blenny, Omobranchus anolius, seeks shelter inside oyster shells when danger approaches. They are often seen peering out of the shells, assessing the surrounding area from the relative safety of the oysters. Image: Lisa Bostrom-Einarsson

Charting a future for Australia's threatened shellfish reefs

February 15, 2018

Most of Australia's once-widespread shellfish reefs have disappeared. A Hub study finds there is still time to arrest the decline, provided the threats that caused their destruction can be curtailed.

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