'Fish podjarka' could be key to sustainable salmon farming

In an effort to find a sustainable way to farm salmon, scientists in Norway are looking into the use of fish podjarka, a natural predator of salmon larvae.

The hope is that by using fish podjarka in hatcheries, the salmon population can be kept in check without resorting to antibiotics or other methods that can be harmful to the environment.

Initial trials of fish podjarka have been promising, and if the method proves viable on a larger scale, it could help to ensure the long-term viability of salmon farming.

Study finds 'fish podjarka' can reduce sea lice counts on farmed salmon

The study, conducted at the University of Stirling, found that fish podjarka can reduce sea lice numbers on farmed salmon by up to 95%.

"The research is a major breakthrough in the control of sea lice and the potential to significantly reduce the use of therapeutants in salmon farming. The next step is to determine if this approach could be used as a stand-alone measure or integrated with other methods," said Professor Rebecca Kilner, who led the study.

The findings have been published in the journal Royal Society Open Science.

Salmon farmers turn to 'fish podjarka' to improve sustainability

Salmon aquaculture is an important industry in the Pacific Northwest, but it's also been controversial. One of the main issues has been the practice of using open-net pens, which allow wastes and fish parasites to contaminate ocean waters.

Now, a new system is being tested that could help improve the sustainability of salmon farming. The system, called 'fish podjarka,' consists of a series of interconnected tanks that hold salmon in close proximity to each other. This allows for more efficient use of food and reduces the amount of waste produced by the fish.

The fish podjarka system has been tested in Norway and Scotland, with positive results. It's now being used in a commercial salmon farm in British Columbia, Canada. If it proves to be successful there, it could be adopted by salmon farmers around the world.

The fish podjarka system is just one example of how salmon aquaculture is evolving to become more sustainable. Salmon farmers are also experimenting with different types of pens that reduce waste runoff, and they're using more environmentally friendly feed ingredients like insects and algae.

Ultimately, we need to find ways to produce seafood sustainably if we want to continue enjoying it in the future. Salmon aquaculture offers one promising solution, and innovations like the fish podjarka system are helping to make it even more sustainable.

'Fish podjarka' proves effective at reducing sea lice levels in salmon farms

The Fish podjarka, a Finnish innovation, is showing to be an effective means of reducing sea lice levels in salmon farms. The device works by immersing a large number of fish in a rotating cylinder which agitates and disturbs the water, forcing the lice to let go of the fish.

Developed by VTT Technical Research Centre of Finland, the Fish podjarka has been trialled in six salmon farms around the country. The trials have shown that on average the podjarka can reduce lice numbers by 97%. This is a significant improvement over current methods used to control sea lice, which often rely on chemicals that can be harmful to both the environment and the fish.

Aquaculture is a growing industry and one that is facing increasing pressure from pests and diseases. Sea lice are one of the biggest threats to farmed salmon, causing significant damage to the fish and resulting in lost revenue for farmers. Devices like the Fish podjarka offer a promising means of controlling these pests without resorting to harmful chemicals.

Using 'fish podjarka' helps salmon farmers meet environmental regulations

Salmon farming is a contentious issue. It can be difficult to find a balance between meeting the needs of the environment and providing a sustainable food source. However, some farmers are using a method called 'fish podjarka' that is helping them do just that.

Fish podjarka is a Russian word that means 'salmon yard.' It is a system of pens or cages in which salmon are raised. The environmental advantages of fish podjarka are many. First, it eliminates the need to build dams, which can have a devastating impact on the environment. Second, it allows for the use of less-nutritious water, since the salmon are contained in pens. This means that farmers don't have to worry as much about environmental regulations when it comes to their salmon farms.

There are also economic benefits to using fish podjarka. It is a more efficient way to raise salmon, meaning that farmers can produce more fish per acre. This makes it more cost-effective than traditional salmon farming methods.

It's clear that fish podjarka is a promising new way to raise salmon. It helps farmers meet environmental regulations while still providing a sustainable food source. With continued research and development, this methodology could become the norm for salmon farming worldwide.