Novel methods for protecting Kappaphycus alvarezii from predators By Dr. Ma'Ruf Kasim

Question

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Nelson Vadassery · Answer

Hi Dr. Ma'ruf,

One of your slides mention seedling weight increasing from a 100 g to 700+ grams in 40 days (a 7 fold increase), and in another slide it shows the weight of seaweeds in longlines increasing from 5 kg to 19.2 kilos (about a 4 fold increase) in the "Horinet method". This seems to be the case both for the longlines and the net methods, with the net methods showing better results. Does this mean that there is a lot of variation between individual plantlet growth performance even within the same system?

Also, how often does one need to clean the nets used?

Is there a cost benefit analysis on the increased yield vs additional cost to the farmer?

Peck Yen Tan · Answer

Hi Dr. Ma'ruf. Thank you for a nice talk. Is there any maintenance required for the floating cage during the cultivation?

KELVIN ZHAO KANG ONG · Answer

Hi Dr. Ma'ruf,

Thank you for sharing a piece of your knowledge. Does seaweed more vulnerable to ice-ice disease and epiphyte by using the floating cage method due to the population density increase in a small area?