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Robertson-Andersson, D. V .; Njobeni, A.; Bolton, J. J.; Anderson, R. J. & Probyn, T. A. PILOT, COMMERCIAL SCALE, CULTIVATION OF  ULVA  AND  GRACILARIA  ON AN ABALONE FARM AT DANGER POINT (CAPE SOUTH COAST)
INTRODUCTION ,[object Object],[object Object],[object Object],[object Object],[object Object]
AIMS ,[object Object],[object Object]
PROJECT SITE ,[object Object],[object Object]
PROJECT DESIGN ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],1 2 3 4 1 2 3 4 1 2 3 4 Sea water Fertilized sea water Abalone waste water 4 V 4 V 12 V 12 V 12 V 12 V
Longitudinal profile of tanks Transverse profile of tanks
PROJECT DESIGN ,[object Object],[object Object],[object Object],[object Object],[object Object]
METHODS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RGR % day  -1 J  J  A  S  O  N  D  J  F  M  A  M  J  J  A RESULTS RGR of  Ulva  from June ‘01 to Aug ‘02 in sea.  (1) Indicates where shading started, (2) where water exchanges increased and (3) indicates where shading stopped. 1 3 2
RGR % day  -1 S  O  N  D  J  F  M  A  M  J  J  A RESULTS RGR of  Ulva  from June ‘01 to Aug ‘02 in sea, fertilized & abalone effluent water.  (1) Indicates where shading started, (2) where water exchanges increased and (3) indicates where shading stopped. 1 3 2
RGR % day  -1 J  F  M  A  M  J  RESULTS RGR of  Ulva  from June ‘01 to Jun ‘02 in sea, shaded sea, fertilized & abalone effluent water.  (2) Indicates where water exchanges increased. 2
RESULTS Myrionema strangulans  (MS) ,[object Object],[object Object],[object Object],[object Object],[object Object]
RESULTS Myrionema strangulans  (MS) BAD INFECTION DEAD HEALTHY INFECTED
RESULTS RGR of Gracilaria from June ‘01 to April ’02 in Sea, fertilized & abalone effluent water. (1) Indicates where shading started (2) indicates where volume exchanges changed from 4 to 12. J  J  A  S  O  N  D  J  F  M  A 2 RGR % Day  -1 1
RESULTS ,[object Object],[object Object],[object Object],[object Object],[object Object]
RESULTS pH values for  Ulva  at 4 V exchanges day -1   8  10  12  14  16 /  9  11  13  15  17  19 21 23 /1 3 5 7  8  12  16  20 Cool Day Pulse fertilization Hot Day
CONCLUSIONS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CONCLUSIONS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
  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 N R F Swedish and South African Collaborative Programme
PO 4  values for abalone incoming and out going water in shaded and unshaded tanks of  Ulva .  Area between red lines is range for seawater.  RESULTS µ  M PO 4   / L
PO 4  values for Fertilized incoming and out going water in shaded and unshaded tanks of  Ulva .  Area between red lines is range for seawater.  RESULTS µ  M PO 4  / L

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PILOT, COMMERCIAL SCALE, CULTIVATION OF ULVA AND GRACILARIA ON AN ABALONE FARM AT DANGER POINT (CAPE SOUTH COAST)

  • 1. Robertson-Andersson, D. V .; Njobeni, A.; Bolton, J. J.; Anderson, R. J. & Probyn, T. A. PILOT, COMMERCIAL SCALE, CULTIVATION OF ULVA AND GRACILARIA ON AN ABALONE FARM AT DANGER POINT (CAPE SOUTH COAST)
  • 2.
  • 3.
  • 4.
  • 5.
  • 6. Longitudinal profile of tanks Transverse profile of tanks
  • 7.
  • 8.
  • 9. RGR % day -1 J J A S O N D J F M A M J J A RESULTS RGR of Ulva from June ‘01 to Aug ‘02 in sea. (1) Indicates where shading started, (2) where water exchanges increased and (3) indicates where shading stopped. 1 3 2
  • 10. RGR % day -1 S O N D J F M A M J J A RESULTS RGR of Ulva from June ‘01 to Aug ‘02 in sea, fertilized & abalone effluent water. (1) Indicates where shading started, (2) where water exchanges increased and (3) indicates where shading stopped. 1 3 2
  • 11. RGR % day -1 J F M A M J RESULTS RGR of Ulva from June ‘01 to Jun ‘02 in sea, shaded sea, fertilized & abalone effluent water. (2) Indicates where water exchanges increased. 2
  • 12.
  • 13. RESULTS Myrionema strangulans (MS) BAD INFECTION DEAD HEALTHY INFECTED
  • 14. RESULTS RGR of Gracilaria from June ‘01 to April ’02 in Sea, fertilized & abalone effluent water. (1) Indicates where shading started (2) indicates where volume exchanges changed from 4 to 12. J J A S O N D J F M A 2 RGR % Day -1 1
  • 15.
  • 16. RESULTS pH values for Ulva at 4 V exchanges day -1 8 10 12 14 16 / 9 11 13 15 17 19 21 23 /1 3 5 7 8 12 16 20 Cool Day Pulse fertilization Hot Day
  • 17.
  • 18.
  • 19.   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 N R F Swedish and South African Collaborative Programme
  • 20. PO 4 values for abalone incoming and out going water in shaded and unshaded tanks of Ulva . Area between red lines is range for seawater. RESULTS µ M PO 4 / L
  • 21. PO 4 values for Fertilized incoming and out going water in shaded and unshaded tanks of Ulva . Area between red lines is range for seawater. RESULTS µ M PO 4 / L