José Miguel Burgos, SERNAPESCA national director. (Photo: Sernapesca)
CHILE
Monday, August 18, 2014, 23:30 (GMT + 9)
A "relevant sanitary improvement" has been
experienced by the Chilean salmon industry so far this year, according
to a new report from the
National Fisheries and Aquaculture Service (SERNAPESCA).
"In the first place, from a production point of view, what we have is
fewer stocked centres. However, the total biomass present in the sea is
higher in the order of 10 per cent over the previous year," SERNAPESCA
national director, José Miguel Burgos, stated when last week he
presented the Marine Centre Health Report for the first half of 2014 in
Puerto Montt.
At the event, which was attended by officials of the
Secretariat of Fisheries and Aquaculture
(SUBPESCA) and representatives of the productive sector, Burgos
announced that in terms of production, it is projected that this year
similar results to those in 2013 will be obtained.
"With a change in the participation proportions by species, with a
significant increase in Atlantic salmon and also a significant reduction
in trout production," he added.
SERNAPESCA director ensured that the situation of the virus
infectious salmon anemia (ISA) is "under absolute control". He said the
last detected case in the centre of Traiguén 1 – belonging to the
company
Invertec Pesquera Mar de Chiloe
(Invermar) -- "was properly controlled and with all the analysis
performed around the focus and perifocus, we can now rule out the
presence of new onset of this virus in the area."
Burgos also stressed that the Veterinary Service of the European
Union considered the SERNAPESCA Specific Programme for ISA Virus Control
and Monitoring as a programme of world standard and meets all
requirements for disease control.
"This is a recognition of the working teams that have spent years on
this line and places us today as the Chilean state’s State Veterinary
Service globally," he stated.
However, he clarified that "ISA virus is present in Chile and
therefore it is expected, compared to stressors, the appearance of new
cases of the disease in the Atlantic salmon species in the regions of
Los Lagos, Aysén and Magallanes."
Given this situation, he emphasized that "the key to success is the
early notification by businesses and strengthen the early detection in
farming centres."
Furthermore, SERNAPESCA report indicates that there have been
significant reductions in parasite loads of sea lice or caligus in the
regions of Magallanes, Los Lagos and Aysén.
This situation is reflected in fewer high spread centres (CAD), which
is the indicator used by SERNAPESCA to measure this disease status.
Burgos attributed the decline to several factors, among which he
mentioned: an improvement in environmental conditions, better management
by the industry and the improvement of the control programme.
"Treatment rotation has also been prominent in parasite control and
we hope they it can be maintained now that the difficult period (second
half of the year) begins and we are starting it with lower loads than
those we had in the same period last year," he pointed out.
Salmon Rickettsial Syndrome (SRS) is currently the leading cause of
mortality in the salmon industry, particularly in trout farming.
While trout mortality associated with the disease has declined,
SERNAPESCA believes that "this is far from being a good health status."
To the authority, the challenge is to modify its control programme "to
generate a greater impact in reducing this disease."
Moreover, SERNAPESCA director acknowledged that they are concerned about the onset of a syndrome affecting trout.
"We coined the name of the trout’s idiopathic syndrome (SIT) and we
are still investigating this issue, but I want to be emphatic in
reiterating that all analysis we have performed in Chile and Europe have
been quite negative for the diseases offering the greatest risk," he
said.
In his opinion, "it would be a different agent having quite milder
epidemiological behavior and mortality rate than other diseases."
Related article:
- High-risk diseases discarded in farmed trout
- Salmon firms expect a good year
- ISA and sea lice prevalence in salmon on the rise