I still remember the first time when I met Supardi (47 years old) on the first day of the Coastal Field School Training of Trainers (CFS ToT). He is one of the twenty-one participants selectively recruited to be community organisers for the aquaculture revitalisation program, which is part of Building with Nature (BwN) to reduce coastal erosion in Demak.This programme provides coastal resilience by combining smart engineering and mangrove rehabilitation,while introducing sustainable land use practice. In Demak we aim for sustainable revitalisationof 300 ha of degraded aquaculture ponds in Demak for crab and shrimp farming.
Picture 1 – In one ToT session, Supardi (47 years old) is observing and measuring the treatment and control ponds at ToT demoplot to monitor the efficacy of LEISA system application. The routine observation and measurement would likely enable the ToT participants to gather, systematise and expand their local knowledge
In order to prove the efficacy of LEISA system, he experimented with some rearing techniques learned from CFS in his pond, while substituting the use of compost with artificial feed. Periodically, he shared his experience and the pond progress with other ToT participants. For example, he learned in the training, that for applying the local micro-organism (mol) solution,late afternoon is the best timing to apply it when the sun exposure is not that strong. From such small success, Supardihas just gained his confidence back to raise Vannamei shrimp. He promised that he is committed to implement the complete LEISA system that he learned from CFS in his pond.
Picture 4 -Control pond (left) and treatment pond (right) experimented by Abdul Ghofur, a CFS ToT participant who is curious to know about the efficacy of LEISA system. The picture of treatment pond is showing the growth of klekap upon the application micro-organism solution.
Also other ToT participants are enthusiastic. For instance Pak Abdul Ghofur (47 years old), decided to compare the efficacy between new rearing techniques and conventional practices by spliting his pond into 2 demoplots, i.e. treatment pond and conventional (control) pond. Recently, he reported that he made a local microorganism solution and compost, and applied them in his treatment pond. He found that the klekap (local language for colonies of micro- and macro-organisms which consist of blue algae-Cyanophyceae and diatomae-Bacillariophceae) starts growing in his treatment pond, while there is no klekap growing in the control pond. The grown klekap would be a healthy and free diets for the milk fish reared in his demo plot. Now, two weeks after the fry stocking,he is looking forward to having a good harvest.
Eventhough the implementation of fish farming CFS in Demak is still in its infancy, by looking at the two stories above, I am convinced that there isnew hope for the shrimp farmers in Demak to revitalise their ponds through improved pond management. In addition, this approach will enable them to gather, systematise and expand their local knowledge.We are on the right track to achieve the BwN socio-economic objective.
For more information on the Coastal Field Schools: www.blue-forests.org
by Woro Yuniati, Blue Forests Indonesia, May 21, 2016
Contributions from Andi Irvan Abubakar, Weningtyas Kismorodati, Karyoso