Salmon farming centre Pilpilehue, in Chiloé.
Camanchaca reports salmon mortality due to algae blooming
CHILE
Monday, March 18, 2019, 21:40 (GMT + 9)
Salmones Camanchaca recorded an unusual salmon mortality event in Pilpilehue centre, in Chiloé, due to algae blooming.
According to the National Fisheries and Aquaculture Service (SERNAPESCA), the company reported abrupt and sudden death of 123 tonnes of salmon at Pilpilehue centre, located in ACS 10 B, near the town of Castro, due to the presence of concentrations on the 250 cells per ml of Pseudochattonella cf verruculosa, on the surface, and immediately activated its plan of action against mass mortalities. The event would have occurred on the previous night and early morning of Thursday, March 14.
Pilpilehue salmon farming centre.
Salmones Camanchaca detailed that the accumulated mortality during last week in Pilpilehue centre reaches the number of 58,000 fish approximately, that is, 2.6 per cent of the total of fish of the specific centre, and 0.4 per cent of the total fish of the company at sea.
SERNAPESCA regional staff was immediately established in the farming centre, where they found that mortality was being withdrawn according to the available logistics in addition to informing the regional inter-institutional environmental contingency committee.
Pathogenesis of algae blooms in fish
The company considers that although the mortality taking place on March 14 was abnormal, "it is not a material event and can be handled operationally with the elements and protocols available."
Salmones Camanchaca said that it has activated the protocols it has defined for this type of situation, including movement of equipment and human talents, in addition to the corresponding notices to the insurers of the biomass.
Gills of an affected Atlantic salmon (Salmo salar)
It should be noted that SERNAPESCA has kept the centres that make up the concession group 10B, ACS to which the Pilpilehue centre belongs, in surveillance since February, considering the presence of Pseudochattonella cf verruculosa, in concentrations under alert levels.
SERNAPESCA personnel will evaluate the evolution of the phenomenon and will continue to monitor the condition of the grouping and the withdrawal and disposal of mortality from the affected centre.
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