"Offshore production of brown algae in the North Atlantic"

Transcription

1 "Offshore production of brown algae in the North Atlantic" DANISH MACRO ALGAE CONFERENCE 2013 Ólavur Gregersen, Ocean Rainforest 9. October DERCULICH LTD.

2 Content 1. The MACR structure 2. Seed line attachments 3. Deployment 4. Cultivation 5. Harvesting 6. Conditioning 7. Large scale scenarios DERCULICH LTD.

3 The Site Temperature: 7-11 C all year Current: 1-3 knots Waves heights: up to 6 meters Salmon faraming within 200 meters MACR deployed in March DERCULICH LTD.

4 Findings Year 1 Seeded lines deployed successfully Cultivation rig survived exposed location 2 harvests in 7 months Growth of S. Latissima and L. Hyperborea Avg. 3 kg/m with max 8 kg/m No need for re-seeding DERCULICH LTD.

5 The MACR structure 10m L. 1-30=8m L =7m L =6m L =7m L = 8m 300 m DERCULICH LTD.

6 The MACR structure with weights 10m L. 1-30=8m L =7m L =6m L =7m L = 8m 300 m DERCULICH LTD.

7 1. Seed line Attachments 1A. Seedline from hatchery 1B. Transport 1C. Attach to growth lines 1D. Growth lines in cages with seawater & oxygen 1E. Transport 1F. Attach to horizontal line 1G. Growth lines + horizontal line in 1000 l. cages 1H. Onloading vessel DERCULICH LTD.

8 2. Deployment 2A. Sailing to MACR 2B. Hook on stander no. 1 2C. Deploy growth & horizontal lines 2D. Attach 20kg. Weights for every 25 meter 2E. Sail connection line to stander no. 2 2F. Tighten the horizontal line to Stander no. 2 2G. Untangle growth lines DERCULICH LTD.

9 3. Cultivation 3A. Sailing to MACR 3B. Control lines 3C. Collect samples 2D. Un-tangle lines 3E. Sailing to port 3F. Register and store samples DERCULICH LTD.

10 4. Harvesting 4A. Sailing to MACR 4B. Hook on and lift growth line 4C. Cut weeds 5-15 cm from stem 4D. Weigh biomass for every meter & register 4E. Store 1000l cages 4F. Sailing to port 4G. Un-load H. Storage 4H. Transport stable condition (freezing) 10 DERCULICH LTD.

11 July 7, 2013 In total 93,3 kgs. Min.: 0,3 kg/m on 5-6md Max.: 6,0 kg/m on 3-4md Avg. 1,06 kg/m DERCULICH LTD.

12 October 4, 2013 In total 115,7 kgs. Min.: 0,6 kg/m on 4-5md Max.: 8,2 kg/m on 1-2md Avg. 2,96 kg/m DERCULICH LTD.

13 5. Conditioning 5B1. Stems 5B2. Fronds 5A. Harvest 5B. Sorting 5B3.Blades 5C. Washing 5D. Scredding 5B4. Mixture 5E. Screwpressing 5E1. Material 5E2. Liquid 5F. Silage 5G. Minced 5F1. Alginate Product 5G1. Material 5H. Silage 5H1. Feed Product G2. Liquid 5I. Filter 5I1. Liquid 5J. Preservation 5I Residual 13 5J1. Feed Product 5J2. Fertilizer 13 Product DERCULICH LTD.

14 DERCULICH LTD.

15 Harvest July 9, DERCULICH LTD.

16 Workshop harvest September 1, 2013 Photo: Karin Svane Bech DERCULICH LTD.

17 Harvest October 4, DERCULICH LTD.

18 Main focus for Year 2 Improve seeding and growth volumes Discuss harvesting techniques based on cultivation method Explore product/price matrix and markets DERCULICH LTD.

19 Seeding Sintef guideline: Step 5: Spraying Step 6: Add Ge02 first weeks Deploy seeded material in August March Red Macro Algae Palmaria DERCULICH LTD.

20 Cultivation Process from seeding hatchery, attachment to growth media and deployment to needs improve The current MactoBiotech site is similar to exposed IMTA test site in Norway (Sintef) Production yield need to improve Range is from 0.8 kg/m (DK), 1-3 kg/m (FO/NO) and 10 kg/m (Exposed IMTA in NO) in vertical growth lines Harvesting methods are dependent on productive growth media Need information on seasonal variation in key value content/seaweed species Scale: Potential commercial viable production at least > tones/year ww. Question: Limitations uptake of nitrates etc. when applying intense farming activity in one area? DERCULICH LTD.

21 Pre-treatment FE: The current product tests are not feasible for their feed production Screw pressing is not recommended Advise from FE: 1) Mince 2) Ferment 3) Silage Scalability & cost: Seasonal harvest cost of storage Awaiting feedback from DuPont & Matis on product tests DERCULICH LTD.

22 Processing DTI: Discovered huge variation in content depended on season and species Need to identify value parameters (proteins, antioxidants, etc.) relevant for the market Optimize product portfolio with regard to seaweed species, content of value parameters and season Scalability: Processing needs to be close to cultivation DERCULICH LTD.

23 Vertical media Illustration of value chain Seeding & Cultivation Harvest & Pre-treatment Processing Sp (R,B) 1 Sp (R,B) 2 Sp (R,B) 3 Sp (R,B) n Horizontal media Harvesting + Mincing Fermentation, refinery & prodution of extracts DERCULICH LTD.

24 Value parameter matrix Sp (R,B) VP 1 VP 2 VP 3 VP 4 VP 5 VP n DERCULICH LTD.

25 Acknowledgements M/B Marjun Business Partners Mannbjørn í Grund Bakkafrost & Marine Harvest Steinbjørn i Dali DuPont Nutrition& Health Petur Arni Kristiansen Runavikar Havn Atlantic Supply Base Vónin DERCULICH LTD.