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community led restoration & climate adaptation Presentation to - - PowerPoint PPT Presentation

Mar 26, 2023 138 likes •588 views

Estuary Care Foundation SA: community led restoration & climate adaptation Presentation to SA Coastal Conference 9 th November 2017 Catherine McMahon, Estuary Care Foundation Port River and Barker Inlet Estuary Local environment action

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Presentation to SA Coastal Conference 9th November 2017 Catherine McMahon, Estuary Care Foundation

Estuary Care Foundation SA: community led restoration & climate adaptation

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Port River and Barker Inlet Estuary

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Local environment action

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Why form Foundation

  • Concern
  • Frustration
  • Examples elsewhere
  • Claiming our vision
  • Vehicle for sourcing funds
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What the future holds

AdaptWest, regional climate adaptation plan

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What the future holds

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Living Shoreline – Port River

Drawings: Peri Coleman 2015

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Nature-based solutions

  • Potentially lessen the impact of sea

level rise

  • Use instead of or in conjunction

with hard structures

  • More viable now pollution into the

Port River has lessened

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USA estuary restoration

www.cbf.org July 2016

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Billion Oyster Project

Goal: 1 billion oysters & 100 acres oyster reefs by 2035 October 2017:

Source: https://billionoysterproject.org

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Harbour School – production hub

Image - http://www.billionoysterproject.org/

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Key priorities of the Foundation

  • Trials of Living Shorelines
  • Shellfish Reef Restoration
  • Seagrass Restoration
  • Community education and

engagement

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Living Shorelines

  • Eco-engineering
  • Environmentally friendly sea

walls (NSW)

  • Coastal Resilience (USA)
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Living Shorelines

  • shoreline protection options
  • offer erosion control benefits
  • natural coastal processes remain
  • strategically place plants, stone,

sand fill and other materials

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USA experience

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How cost effective is natural infrastructure?

The Nature Conservancy

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Examples of Living Shorelines

This living shoreline replaced a failing bulkhead at a state boat ramp on the Chowan River, North Carolina (Source: Coastal Review Online)

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Examples of Living Shorelines

Avon River Environment Association (Canada) building a Living Shoreline 2010

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Example of Living Shoreline, NSW

Carss bush park seawall with rockpools, extended slope, crevices, endangered saltmarsh, Kogarah Council 2016

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Living Shoreline: bagged recycled shell

OceanWatch Australia is helping NSW coastal communities turn

  • ld oyster shell into living

shorelines in an Australian first

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Shellfish in Kaurna life

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Now: mussels in Inner Harbour

Mussels on New Port Quays marina, November 2015

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Now: shellfish on Flinders Ports beacon

Beacon taken out near Birkenhead, photo 31st October, 2016

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Now: pinna reef

pinna reef at Outer Harbour, January 2017

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Port River Shellfish Restoration Project

  • Formed in January 2016
  • Advisers
  • Learn
  • Goals and plans
  • Volunteer manual
  • Community NRM grant
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Initial research questions

  • Can Ostrea angasi (approx 60mm)

survive at our trial sites?

  • What spat can be recruited during

the spawning seasons of mussels and Ostrea angasi ?

  • Can Ostrea angasi spat on shell

survive at our trial sites?

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Grow sites

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Outcomes

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Seagrass Restoration

  • Monitoring program along Torrens

Island

  • Seagrass restoration trial, north of

Snowden’s

  • Lessening of existing impacts on

seagrass

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Seagrass in Port River

Zostera in Port River; photo by Kym Murphy

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Zostera near Quarantine Station, Torrens Island, Feb 2017; photo by Peter Carter

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Community Education

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Community Education

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Community Education

World Environment Forum, June 2017

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Community Education

Science Alive, August 2017

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Implications: Policy

  • Climate Adaptation
  • Living Shorelines
  • Stormwater management
  • Urban infill
  • Coordination across agencies
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Community Development

  • Resilient community
  • Estuary: multiple stewards
  • Finding common cause with
  • thers
  • Hope
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Community Development

  • Collaboration: researchers,

universities and schools

  • Support: local environmental and
  • ther groups
  • Support: government and

businesses

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Future: Inner Harbour

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Future: Inner Harbour

Short term:

  • Bagged shell trials
  • Swim

Longer term:

  • Shoreline protection
  • Reefs and snorkel
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Future in Estuary

  • Plan for long term changes
  • Shoreline protection
  • Wetlands to address stormwater
  • Carbon sequestration
  • Habitat protection & retreat
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Estuary Care Foundation Inc

http://lefevre.noticeboard.net.au/?page_id=901 Catherine McMahon estuarycare@internode.on.net 0413 578086