This presentation was given at the 2003 Phycological Society of Southern Africa meeting in 2003. The presentation asks whether a seaweed extract (normally used on land plants) can also be used to increase seaweed produciton.
Prescribed medication order and communication skills.pptx
Can kelp extract (KELPAK) be useful in seaweed mariculture?
1. Can kelp extract (K ELPAK ) be useful in seaweed mariculture? Bolton JJ 1 , Robertson-Andersson D, Njobeni A 1 , Leitao D 1 , Anderson RJ 2 and Ruck, K 3 1 Botany Department, U CT 2 Seaweed Unit, M&CM 3 Jacobsbaai Sea Products
13. JSP Kelpak experiments 3 replicates of each treatment EXPT 1: Concentrations of Kelpak (1:5000, 1:2500, 1:500) added to turbot/abalone effluent EXPT 2: Chosen concentration of Kelpak in two types of effluent, with and without fertiliser supplement
14. Gracilaria at JSP: RGR in different Kelpak concns. (Run 1)
22. E ffect s of various K elpak dilutions in turbot effluent on R GR (% d -1 ) o f Ulva at JSP
23. Effects of K elpak in turbot effluent on tissue N of Ulva at JSP
24. Fertiliser treatment As used on I&J farm at Gansbaai 6 parts Maxiphos to 1 part ammonium sul ph ate Added weekly, for 8 hours in non-flowing water in the day (08:30 to 16:30) Concentration in water after fertilization: 575 M ammonium/ 280 M phosphate
25. Effect of 1:2500 Kelpak and fertilizer (separately or combined) in turbot effluent on RGR (% d -1 ) of Ulva lactuca at JSP .
26. Effects of Kelpak (1:2500) and fertilizer in turbot effluent on tissue N (mg N per g) Ulva at JSP.