Presentation to Port Adelaide U3A 5 th September 2017 Catherine - PowerPoint PPT Presentation

Presentation to Port Adelaide U3A 5 th September 2017 Catherine McMahon, Estuary Care Foundation

https://youtu.be/Dn8dZrWK7fM

Shellfish Restoration Shellfish reefs, a component of Living Shorelines. Drawing by Peri Coleman

How cost effective is natural infrastructure? The Nature Conservancy 4

International examples • Billion Oyster Project, Hudson River History Ambitious goal Schools Shell Recycling Involving businesses • Chesapeake Bay Foundation Oyster gardening

Billion Oyster Project

BOP 2035

BOP now

Harbour School – production hub Image - http://www.billionoysterproject.org/

Shell Recycling www.oysterrecovery.org

Oyster gardening Oyster basket at Bert Jabin Yacht Yard, Chesapeake Bay

Australian shellfish reef Healthy angasi reef in Tasmania

Australian Restoration Projects

Sydney Harbour OceanWatch Australia is helping NSW coastal communities turn old oyster shell into living shorelines in an Australian first

Port Phillip Bay

South Australia • 1500km of SA coast had shellfish reefs • 85% loss shellfish reef worldwide; 99% loss in SA • Reefs may enhance coastal protection • Restored reefs can enhance fish stocks • Ostrea angasi filter 200 litres of water/day • Reef off Ardrossan to be largest in southern hemisphere

https://youtu.be/nQ6fUolU81s

https://www.youtube.com/watch?v=UNXWEyygIeo

Port River Shellfish Restoration Project First project group meeting, January 2016

Shellfish in Kaurna life

Shellfish in Kaurna life Healing Mural, Port Adelaide Visitors Centre

Colonial records Diary Anthony S Fotheringham Sept 1st 1871

Records from C20th Beachcombing at the Outer Harbour South Australia Published by SA Museum, 1954 and 1964

Now: mussels in Inner Harbour Mussels on New Port Quays marina, November 2015

Now: pinna from Snowden’s Beach

Now: shellfish on ASC oil spill containment boom growth on boom, after 15 months in water 18 August 2016

Now: shellfish on Flinders Ports beacon Beacon taken our near Birkenhead, photo 31st October, 2016

Now: pinna and angasi pinna & angasi retrieved from Taperoo Beach, August/Sept 2016

Now: pinna reef pinna reef at Outer Harbour, January 2017

Now: live Ostrea angasi Found north of Outer Harbour breakwater, January 2017

Support: Port River Shellfish Restoration Project • Sites • Community NRM Grant $5K • SEAPA – donated baskets • Pacific Estate Oysters – donated Ostrea angasi

Grow sites

Community support • Port Adelaide Residents Environment Protection Group • SA Malacological Society • SA Marine Life Society • Foundation volunteers • Portside Christian College & Ocean View College

Support: Australia Day Award Emerging Group award, January 25 th , 2017

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?

Setting up our baskets May 2017

Mark, measure, weigh Working bee, 31 May 2017

and photograph

Outcomes Growth on oysters at CYC, June 16, 2017, photograph by Dan Monceaux

Outcomes Oysters alive and open, dive by Steve Reynolds, CYC 16 th June 2017

Outcomes Growth on oyster at Flinders Ports, August 30 th Only 3 of more than 300 oysters have died across our 6 sites

What we don’t want growing Ciona intestinalis Mussel drills Lepsiella paivae Inner Harbour 14 th August 2017

What’s growing on or with our angasi Mussel on angasi Shrimps with oysters CYC, 19 August 2017 Flinders Ports, 30 August 2017

What’s growing on or with our angasi Limpet on angasi Pygmy squid Flinders Ports site 30 August 2017

What’s growing on or with our angasi Inner Harbour, 24 August 2017

Community Education World Environment Forum, June 2017

Community Education Science Alive, August 2017

Plans for the future • Trials with spat on shell • Provide substrate for our reef builders • Reefs in Inner Harbour • Shoreline protection e.g. along Torrens Island, Living Shorelines • Healthy, swimmable Port River

Existing reef builders Pacific oysters and mussels in Inner Harbour, August 2017

Swimmable River Long Swim Through Port Adelaide reinstated, December 2016

Estuary Care Foundation SA Inc Catherine McMahon estuarycare@internode.on.net 0413 578086