AquaCAM News for September

The IRD representative in Cambodia, Adèle Martial-Grosso, visited the AquaCAM project office in the Faculty of Fishery on the Royal Agriculture University campus.  In the presence of Professor Samphal Seng, this friendly visit allowed us to discuss the whole of the activities of the project, and to present the new office which welcomes the IRD staff but also our colleague Kazi Kabir, a researcher from CIRAD and member of the AquaBioS team, the trainees, the staff and the partners of the RUA and AquaCAM project.  The representative’s visit continued with a visit to the RUA experimental farm where experimental ponds for the study of ecological intensification have been dug thanks to the AquaCAM project.  These ponds are to be consolidated at the end of the rainy season to initiate the studies. 

Rice-fish farming

On August 27, students from the Faculty of Fisheries and Aquaculture of Heng Samrin University in Tbong Khmum province visited the pilot site of the AquaCAM Project. Accompanied by processor Pen Dara, Vice-rector of the Faculty, the students were very interested in the explanations offered by Mr Somony Thay, Director of the DAD (Directorate Aquaculture Development) of the Fishery Administration, on the production activities of the AquaCAM pilot site, which combines the production of rice with freshwater shrimp. The latter growing well and the harvests look promising.

Before going to the AquaCAM pilot, the students also visited Mr Hong Heang’s hatchery to hear advice and opinions from a producer on the opportunities and challenges of aquaculture. Of particular interest to the students were visits to the freshwater shrimp and frog farms.

Finally , to better understanding and respond to the challenges of rice-fish farming development, this month of September we are starting a survey on the perception of rice-fish farming by rice farmers in Siem Reap province.  This study, conducted jointly by IRD, APDRA and TCO, a Cambodian NGO, aims to highlight how rice farmers perceive this practice and to identify the constraints and opportunities for its adoption.

FBT Surveys

Our friend Antoine has returned to France where he has successfully defended his work done in Cambodia for his Master 2 at the University of Montpellier. Now, ready to leave for new adventures, good luck Antoine! Your help has been precious here.  Welcome also to Lin who reinforces the team in the laboratory.

Research activities on larval trematodes are continuing especially in Kampong Chhnang province where samples in ponds and in cages have been done. Further sampling was also conducted in Beong Koc village in Kampong Cham province. Currently, almost 400 fishes were analyzed.

Although low, the prevalence of parasites silver barb (B. gonionotus) suggests significant variability according to fishes origin.

Antibiotic resistance in aquaculture

Studies on the occurrence of resistant bacterial strains in aquaculture are progressing very well and we are very pleased to congratulate the students of Dr Peng Chantal’s team from ITC who defended their theses carried out in the framework of AquaCAM.  

– Presence and characteristics of antibiotic-resistant E. coli isolated from snakehead aquaculture systems (Mr KHY Panha, 5th year engineering student).

– Occurrence and characteristics of antibiotic-resistant Aeromonas spp. isolated from snakehead aquaculture systems (Mr CHEA Sopheaktra, 5th year engineering student).

– Presence and characteristics of antibiotic-resistant Aeromonas spp. and Escherichia coli isolated from the Pangasius aquaculture system (Ms MONIROTH Sopheavattey, 2nd year Master student)

Congratulations to all for their work and their success!

These initial results show that water is a real meeting place for bacteria of multiple origins and encourage the adoption of a holistic vision to fight against microbial resistance to antibiotics,, even for aquaculture.

But the study of antibiotic resistance did not stop and the ITC teams supported by FiA carried out sampling on the Ton Le Sap in the Snakehead and panga cages. As soon as sampling was completed, the ITC team immediately initiated laboratory work.