865 million farmed salmon died in 10 years, with mass mortality occurring frequently around the world
Most of the salmon that is served as a topping for conveyor belt sushi or grilled fish for set meals in Japan is farmed in countries such as Norway, Chile, and the United Kingdom. However, in these major salmon producing areas, mass mortality of farmed salmon is increasing, with over 5 million salmon dying at once.
Quantitative analysis of mass mortality events in salmon aquaculture shows increasing scale of fish loss events around the world | Scientific Reports
865 million farmed salmon die off worldwide, 2012-2022 - sosc - UVic
https://www.uvic.ca/socialsciences/info-for/faculty-staff/announcements/865-million-farmed-salmon-die-off-worldwide-2012-2022.php
Mass salmon deaths are a warning: no one should be eating this fish
https://inews.co.uk/opinion/mass-salmon-deaths-warning-eating-fish-2947867
Fish is attracting attention as a healthy and environmentally friendly food, and salmon farming in particular holds promise as a sustainable source of animal protein. On the other hand, as the aquaculture industry expands, the number of ``Mass Mortality Events'' (MMEs), which are disasters in which large numbers of fish die in a short period of time, continues to increase.
Gerald Singh of the University of Victoria in Canada and his colleagues found that in 2021, the top four producing countries that produced 90% of the world's salmon - Norway, Chile, the United Kingdom and Canada - recorded mass salmon mortality events in Australia. We have summarized mass salmon mortality events in a total of six countries, including Japan and New Zealand (6th and 10th largest in the world, respectively). The total production of these six countries corresponds to 92% of the world's salmon production.
The study found that a total of 865 million salmon died in these six countries between 2012 and 2022.
It has also been found that the frequency of mass mortality events increases over the years.
The researchers estimate that the maximum number of salmon lost in a single mass mortality event was 5.14 million in Norway, 5.05 million in Canada, and more than 1 million in the United Kingdom. It is also estimated that up to 8.19 million salmon die each year in Chile, 4.39 million in New Zealand, and 1.55 million in Australia.
For example, in Scotland, a record 17 million farmed salmon will die in 2023, and in Norway, 17% of all farmed salmon will die suddenly.
One of the factors contributing to the mass die-off of salmon is environmental factors, including climate change. Specifically, these include
The research team also found that efficient fish production technologies, including AI management and remote sensing technology that measures water temperature, flow, oxygen, and salinity in real time, allow large numbers of salmon to be farmed in one location. They also point out that this may ironically be contributing to the mass death event.
Singh pointed out that reducing the impact of stress factors that trigger mass mortality on salmon requires greater emphasis on animal welfare, such as not overcrowding pens. ``Mass mortality events can have a significant impact on local economies, communities, and ecosystems. For example, if aquaculture operations are no longer possible in areas that rely on the aquaculture industry, local economies and the livelihoods of the people living there are affected.'' will be hit hard.'
Related Posts:
