Sustainable aquaculture and aquatic resources management

Developing an Environmental Monitoring System to Strengthen Fisheries and Aquaculture Resilience and Improve Early Warning in the Lower Mekong Basin

Author(s): Cherdsak Virapat, Simon Wilkinson, Doris Soto | Published: 18/1/2017 | 616 views

These are the proceedings of a consultation on the existence and effectiveness of environmental monitoring systems for fisheries and aquaculture in the Lower Mekong basin. The document provides a baseline assessment of environmental monitoring systems in Cambodia, Thailand and Vietnam and the report of a workshop to discuss the assessments findings and future steps towards an improved environmental monitoring and early warning system that will contribute to climate change adaptation in fisheries and aquaculture in the area.

Aquaculture Asia Magazine, Vol. XX No. 2, April-June 2015

Published: 21/12/2016 | 722 views

Sustainable aquaculture

  • Peter Edwards writes on rural aquaculture: Successful demonstration of new model for rural development in Myanmar
  • Optimisation of Nile tilapia (Oreochromis niloticus) production in ponds based on improved farm management practices in Rwanda
    Ndorimana Jean Claude, Nguyen Van Tien, Pham Quoc Hung

Research and farming techniques

  • EUS infection in fresh water fishes of Andhra Pradesh, India
    B. Laxmappa
  • Development of pond reared broodstock / spawners of green mud crab Scylla serrata
    Shyne Anand, P.S., C. P. Balasubramanian, A. Panigrahi, C. Gopal, Sugeet Kuma and T.K. Ghoshal

NACA Newsletter

  • 12th Technical Advisory Committee held in Cha-am, Thailand
  • Audio recordings: WAS special session on regional cooperation for improved biosecurity
  • Pillay Aquaculture Foundation Awards for Scientists in Least Developed Countries
  • Gender Seminar Conducted and ASEAN Gender Network Launched
  • A two-tube, nested PCR detection method for AHPND bacteria
  • 9th Regional Grouper Hatchery Production Training Course
  • Developing an environmental monitoring system to strengthen fisheries and aquaculture in the Lower Mekong Basin
  • Regional Workshop on the Status of Aquatic Genetic Resources

Quarterly Aquatic Animal Disease Report Q2 2016

Published: 7/11/2016 | 874 views

The 71st edition of the Quarterly Aquatic Animal Disease Report contains information from 15 governments. The foreword provides information about the 10th Symposium on Diseases in Asian Aquaculture.

NACA Newsletter, July-December 2016

Published: 7/11/2016 | 773 views
  • FishAdapt: A conference on climate change adaptation for fisheries and aquaculture.
  • 11th Asian Fisheries and Aquaculture Forum convened in Bangkok.
  • A new and improved PCR detection method for Enterocytozoon hepatopenaei (EHP) based on a gene encoding a spore wall protein.
  • Radio interview on NACA's mission and role in regional food security.
  • Quarterly Aquatic Animal Disease Report, Q1 2016.
  • Guidebook on farmer-to-farmer extension approach for small-scale freshwater aquaculture.
  • New NACA website in the works.

Quarterly Aquatic Animal Disease Report Q1 2016

Published: 15/9/2016 | 1150 views

The regional Quarterly Aquatic Animal Disease (QAAD) reporting system has been implemented since the second quarter of 1998 and continues to provide a useful mechanism for aquatic animal disease information sharing amongst 21 participating governments in the Asia-Pacific region. The QAAD reporting system is a joint activity between NACA, FAO and OIE Regional Representation (Tokyo). The 2016/1 QAAD report, 70th in the series, includes health reports from 16 governments.

This issue's foreword discusses changes to the QAAD Asia-Pacific Report and the list of reportable diseases.

Guidebook on farmer-to-farmer extension approach for small-scale freshwater aquaculture

Published: 15/9/2016 | 1180 views

This guidebook was prepared as an offshoot of the International Symposium on Small-scale Freshwater Aquaculture Extension, which was held in Bangkok, Thailand in December 2013. This document will serve as a guide on how to implement farmer-to-farmer approaches on small-scale freshwater aquaculture extension, which was solely based on successful on-farm experiences mostly in freshwater aquaculture in Cambodia. Every subject in this guidebook can be modified depending on the existing local situation and condition where the extension programmes will be implemented. It is also hoped that this guidebook can be adapted to other small-scale aquaculture operations in the region (e.g. brackishwater and coastal aquaculture), especially in poor rural areas.

A new and improved PCR detection method for Enterocytozoon hepatopenaei (EHP) based on a gene encoding a spore wall protein

Author(s): Itsathitphaisarn, O, Jaroenlak, P., Sanguanrut, P., Salachan, P.V., Wiredu-Boakye, D., Williams, B.A.P, Stantiford, G.D., Flegel, T.W., Sritunyalucksana, K. | Published: 3/7/2016 | 3515 views

Hepatopancreatic microsporidiosis (HPM) caused by Enterocytozoon hepatopenaei (EHP) is a newly emerging disease of cultivated shrimp in Asia. Current evidence indicates that it can be associated with severe growth retardation that may not be clearly evident until the second month of culture and that it may even cause low continuous mortality in the case of very severe infections. 

Here we present a new method for detecting Enterocytozoon hepatopenaei (EHP) that has superior specificity to the first generation SSU-PCR developed in 2009 when the genetic information of EHP was still limited. Due to the urgency in stemming losses to HPM, we have decided to release this method for free, non-commercial use to the global shrimp farming community.   

The second generation EHP detection method presented here is based on a gene encoding a spore wall protein (SWP) of EHP (SWP-PCR). Results from our laboratory work revealed, in contrast to SSU-PCR, that the SWP-PCR method did not give cross reactions with DNA from crabs infected with H. eriocheir and E. canceriFrom these results, we recommend that the new SWP-PCR method replace the first generation SSU-PCR method.

The sequences of the primers for the SWP-PCR method (nested PCR) are given below and can be used freely for non-commercial applications to detecting EHP. Please contact Centex Shrimp (ornchuma.its 'at' mahidol.ac.th) to obtain a free positive control plasmid (pGEM-EHPSWP).

NACA Newsletter, January-June 2016

Published: 9/6/2016 | 1579 views
  • NACA conducts workshops on white spot disease and shrimp health management in I.R. Iran.
  • Don’t forget to register for the 11th Asian Fisheries and Aquaculture Forum!
  • NACA pays tribute to Professor H.P.C. Shetty – Patron of the Pillay Aquaculture Foundation.
  • EHP: Shrimp industry survey.
  • 3rd International Conference on Fisheries and Aquaculture, 24-25 August, Negombo, Sri Lanka.
  • Special Session on the Status of Aquatic Genetic Resources for Food and Agriculture.
  • Second International Technical Workshop on Acute Hepatopancreatic Necrosis Disease (AHPND).
  • Guidebook on Farmer-to-Farmer Extension Approach for Small-Scale Freshwater Aquaculture.
  • Sustainable intensification of aquaculture in the Asia-Pacific region.

Quarterly Aquatic Animal Disease Report Q3 2015

Published: 27/5/2016 | 1356 views

The regional Quarterly Aquatic Animal Disease (QAAD) reporting system has been implemented since the second quarter of 1998 and continues to provide a useful mechanism for aquatic animal disease information sharing amongst 21 participating governments in the Asia-Pacific region. The QAAD reporting system is a joint activity between NACA, FAO and OIE Regional Representation (Tokyo). The 2015/3 QAAD report, 69th in the series, includes disease information from 9 governments.

This issue's foreword discusses the highlights of the 14th Meeting of the Asian REgional Advisory Group on Aquatic Animal Health and changes to the Asia-Pacific QAAD report.

Quarterly Aquatic Animal Disease Report Q4 2015

Published: 27/5/2016 | 1194 views

The regional Quarterly Aquatic Animal Disease (QAAD) reporting system has been implemented since the second quarter of 1998 and continues to provide a useful mechanism for aquatic animal disease information sharing amongst 21 participating governments in the Asia-Pacific region. The QAAD reporting system is a joint activity between NACA, FAO and OIE Regional Representation (Tokyo). The 2015/4 QAAD report, 70th in the series, includes disease information from 9 governments.

This issue's foreword discusses a new viral disease of farmed tilapia: Tilapia lake virus.

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