The MACRO path to successful demonstra7on scale produc7on in the tropics. Marie Magnusson

Transcription

1 The MACRO path to successful demonstra7on scale produc7on in the tropics Marie Magnusson

2 The integrated production of macroalgae in wastewater

3 The integrated production of seaweeds in wastewater

4 The integrated production of seaweeds in wastewater

5 The integrated production of seaweeds in land based aquaculture 1000 tonne Penaeus monodon tonne Rachycentron canadum

6 Environmental drivers Shift in demand for protein from developed to developing nations Calorific intake by food type (% of daily calorific intake) Meat and other animal protein Developing 7% Developed 27% Mean per capita consumption of seafood kg/person/year kg/person/year

7 Environmental drivers 9 billion people by 2050 = billion Global demand for protein will more than double Limited scope for production on arable land Limited freshwater water resource Marine aquaculture land-based + in sea

8 Environmental drivers Aquaculture is the most efficient form of animal production in terms of water use, feed and space efficiency Aquaculture production reached that of wild capture fisheries in 2010 (90 million tonne + 90 m tonne fisheries ) Based on population projections and current growth in per capita fish consumption aquaculture will be a 300 million tonne+, $US 2 trillion+ per year industry by 2050

9 How to meet increasing demand... without impact on the Great Barrier Reef...

10 Great Barrier Reef... UNESCO World Heritage Area 3000 individual reefs 2300 km in length 344,000 km species of fish 130 species of sharks $6 billion tourism industry 70,000 jobs 50% loss of coral cover ( )

11 Nutrient flows to the Great Barrier Reef Mean annual current river flows of nutrients to GBR lagoon Total N = 80,000 tonnes 2 6 x 52,000 tonnes particulate N 16,000 tonnes DIN 15,000 tonnes DON Total P = 30,000 tonne 3 9 x 16,000 tonnes particulate P 1,000 tonnes DIP 13,000 tonnes DOP Kroon et al. 2012, 2016

12 Environmental drivers Managing nutrient discharge in the Great Barrier Reef catchments Land-based aquaculture < 1% of discharge and as such is a key target because of the capacity to manage point source discharge nitrogen, phosphorous, suspended solids, oxygen Current aquaculture existing legislation Future aquaculture new legislation

13 Environmental drivers Legislation current land-based aquaculture Nitrogen 3 mg.l -1 max, 1 kg.ha -1.day -1 Phosphorous 0.4 mg.l -1 max and 0.15 kg.ha -1 Suspended solids 40 mg.l -1 mean Oxygen > 90% background Legislation - future land-based aquaculture Net-zero discharge

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15 The integrated culture of seaweeds in land-based aquaculture

16 The integrated culture of seaweeds in land-based aquaculture

17 Selection of species Iden7fica7on of species and strains for bioremedia7on of land based aquaculture Lawton et al. (2013). PLoSOne 8(10): e Growth rates of blade and filament morphologies

18 Selection of species Ulva ohnoi Pan-tropical High temperature tolerance ~35 C High growth rate Variance in growth between locations Variance in growth within locations Potential to select strains TSV strain to perform at high temp low salinity Ulva tepida Lawton et al PLoS ONE, Carl et al., 2014 a,b, PLoS ONE

19 Selection of species Ulva ohnoi 6 month intensive trial (13,000 L tanks) 1g (fw).l -1 (7 days harvest) 38 g (dw) m -2.day g (dw) m -2.day C optimum 13,000 L parabolic tanks 12% ulvan (sulfated polysaccharide with bioactive properties) 13% protein Mata et al JAPH

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21 [4] [1] [3] [2] [2]

22 Production at Pacific Reef Fisheries

23 Production at Pacific Reef Fisheries

24 Production at Pacific Reef Fisheries Ocean Intake Water Nitrogen: mg/l Prawn & Cobia water discharge Water storage Nitrogen : mg/l Sand Filter : Conversion of Nitrogen (organic to inorganic N) Algae Ponds Nitrogen: mg/l

25 Production at Pacific Reef Fisheries Existing farm 30 hectares of new production New farm Guthalungra 260 Ha site with 30 Ha of seaweed ~ 3000 tonnes of prawns ~ 2500 tonnes (dw) of Ulva ohnoi

26 Production at Pacific Reef Fisheries Nitrogen price - discharge 1 kg $30/kg = $ discharge 1 kg 3% = 33.3 kg biomass (dw) 33 kg $4/kg = $ fer7liser Total = $ = 18.5% N % dw Mean price/kg N - $150* Price range/kg N - $50 - $200* * Rolfe and Windle 2016 NESP

27 Product development and value optimisation

28 Product development and value optimisation Cole et al JAPH

29 Product development and value optimisation Carl et al a,b PLoS ONE Carl et al a,b JAPH

30 Product development and value optimisation Kumar et al Marine Drugs Glasson et al Algal research

31 Product development and value optimisation Bird et al BRT Bird et al GCB Bioenergy Roberts et al Scientific Rep. Roberts and de Nys J Environ Manag.

32 Product development and value optimisation Neveux et al BRT Neveux et al Algal Res. Neveux et al GCB Bioenergy Cole et al Energy & Environ.

33 Product development and value optimisation

34 The secret to success People!!! Place Poli7cs

35 The secret to success - PEOPLE

36 The secret to success - People

37 The secret to success - place Aerial view of cul7va7on facili7es at James Cook University

38 The secret to success - politics

39 Macroalgal Biotechnologies Programme Develop novel science to grow new high value industry Build Blue to green enterprises Produce macroalgal biomass Develop macroalgal bioproducts and bioac7ves 4 year programme, $13m funding UoW, TEC

40 Our team Dr Marie Magnusson Program leader Bioac;ves & Bioproducts Dr Chris Glasson Bioac;ves & Bioproducts Dr Rebecca Lawton Produc;on 2 x Technician 3 x PhD, 3 x MSc Support: Chris Balershill, John Tyrrell, Rocky de Nys

41 A new challenge Townsville Tauranga

42 A new challenge Townsville, Australia Tauranga, New Zealand

43 A new challenge Townsville, Australia Tauranga, New Zealand map

44 A new challenge Townsville, Australia Tauranga, New Zealand

45 Thank you