A preliminary investigation into modelling an integrated seaweed (Ulva lactuca) & abalone (Haliotis midae) system
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This presentation was given at the Phycological Society of Southern Africa meetin in 2004 and shows prelimanary investigations into modeling and IMTA seaweed abalone land based recirculting system
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A preliminary investigation into modelling an integrated seaweed (Ulva lactuca) & abalone (Haliotis midae) system
- 1. D. V. Robertson-Andersson; A. Govender; T. Probyn; C. Halling; M. Troell; J. Bolton & R. Anderson A preliminary investigation into modelling an integrated seaweed ( Ulva lactuca ) & abalone ( Haliotis midae ) system
- 7. Longitudinal profile of tanks Transverse profile of tanks 5 m 1 m
- 8. Longitudinal profile of tanks Transverse profile of tanks
- 9. Seaweed tank Pump Gravity feed Abalone tanks Seaweed tank 80 % recirculation 20 % Sea water Over flow
- 13. Balancing the equations Using linear mass balanced equations Multiple regression of factors Problems putting theory and reality together
- 14. RESULTS Dissolved oxygen Dissolved oxygen in a recirculation system 15 16 20 00 04 08 12 16 20 00 04 08 12 16
- 15. RESULTS Dissolved oxygen Dissolved oxygen in a recirculation system 15 16 20 00 04 08 12 16 20 00 04 08 12 16
- 16. RESULTS pH in a recirculation system pH 15 16 20 00 04 08 12 16 20 00 04 08 12 16
- 17. RESULTS pH in a recirculation system pH 15 16 20 00 04 08 12 16 20 00 04 08 12 16
- 18. RESULTS Temperature in a recirculation system Temperature 15 16 20 00 04 08 12 16 20 00 04 08 12 16
- 19. RESULTS Temperature in a recirculation system Temperature 15 16 20 00 04 08 12 16 20 00 04 08 12 16
- 20. RESULTS ammonium levels in recirculated tanks range between 0.003 - 0.005 u M N.L -1 ammonium levels in abalone flow through tanks = 0.01 u M N.L -1 Ammonium levels
- 23. THE END Thank you ACKNOWLEDGEMENTS I would like to extend special thanks to the following people and organizations without whose help this project would be impossible: I & J Mariculture farm particularly N. Loubser, H. Otto and L. Ansara JSP Mariculture farm particularly K. Ruck N R F Swedish and South African Collaborative Programme