Shrimp farming pond. (Photo: Sagarpa)
Health emergency set due to shrimp mass death
Friday, August 23, 2013, 23:30 (GMT + 9)
The Secretariat of Agriculture, Livestock, Rural Development, Fisheries and Food (Sagarpa) has activated the National Emergency Aquaculture Health Device (Dinesa) in order to formalize and empower the proceedings started last May to control and eradicate the presence of atypical mortalities of shrimp in the states of Nayarit, Sinaloa and Sonora.
According to the new provision, published in the Official Journal of the Federation, the control measures will also help to integrate contingency funds aimed at supporting producers to restore the development of the shrimp capture activity.
Dinesa coordination is conducted by the National Agrifood Health, Safety and Quality Service (Senasica), through the Directorate General of Animal Health.
Animal health measures will be evaluated on an ongoing basis by Senasica, which is the entity that will receive the support of the productive-academic sectors, the National Commission of Aquaculture and Fisheries (Conapesca), the National Fisheries Institute (Inapesca) and state officials.
Approximately 42 per cent of the total stocked area – 50,000 hectares -- in the northwestern region of Mexico (Nayarit, Sinaloa and Sonora), equivalent to about 21,100 hectares, has been subjected to epidemiological investigation.
At the official laboratories, Sagarpa technicians analysed more than 6,000 samples of live shrimp, feed, feed supplements, water, sludge and sediment from the ponds, where enterobacteria, aflatoxin and total coliform were found, Conapesca reported.
The preliminary scientific reports indicate the presence of "a great variety of bacteria genres such as Vibrio and Aeromonas, which affect the hepatopancreas, and of the viral type for hypodermal necrosis and infectious haematopoietic diseases."
Conapesca stressed that this evidence is not related to diseases or agents causing any harm or to mortality previously identified or confirmed in Mexico.
The emergency device establishes animal health measures for the diagnosis, prevention, control and eradication of atypical mortalities in shrimp production units, and includes the implementation of quarantine and isolation standards in the affected areas of Nayarit, Sinaloa and Sonora.
In addition, it strengthens the epidemiologic surveillance and performs diagnosis and identification of the agent or agents causing diseases.
According to Rafael Ruiz Moreno, secretary of the National Fisheries and Aquaculture Chamber (Canainpesca), at least 50 per cent of the shrimp aquaculture production in these three states could be affected.
It is speculated that the economic losses could exceed MXN 1,000 million (USD 75.6 million).
The leader highlighted that the planned production for 2013 was 130,000 tonnes but it would not reach 60,000 tonnes, El Financiero reported.
By Analia Murias
Photo Courtesy of FIS Member SAGARPA - Secretaria de Agricultura, Ganaderia, Desarrollo Rural, Pesca y Alimentacion