Sustainability has become an integral part of the aquaculture industry. Consumers and retailers alike are critical about fish quality, fish welfare, and the potentially harmful impact aquaculture has on the environment. For the salmon farming industry, keeping fish healthy and disease-free represents a crucial step toward sustainable farming. Both research and anecdotal evidence point to stress as one of the likely causes of poor fish health in salmon farms.
Healthy fish grow faster, reproduce better, suffer from less disease, and taste better. In intensive aquaculture, farmed fish are exposed to ongoing predation stress from seals. Because nets don’t prevent predation stress, only by removing seals from the entire fishing area can the 'fight or flight' reaction to seals be prevented.
GenusWave helps farmers implement sustainable fishing practices by eliminating predation stress and decreasing the acute stress that fish experience every day.
Salmon’s immune system can handle most challenges. But over time, predation stress can tax a salmon’s energy reserves and overwhelm its defenses. When that happens, poor health and disease results.
In one study, salmon stress was linked to “moribund fish,” whereby fish exhibited depression-like behavior and even anorexia. A second and equally problematic outcome of acute stress is an increased susceptibility to sea lice.
Unfortunately, current methodologies used to manage sea lice infestations may actually make the situation worse. The reason is that treatments to remove sea lice also remove the salmon’s mucus. By stripping away their mucus, these treatments make the salmon vulnerable to sea lice re-infection and incapable of fending off other infections and diseases. When a salmon is infected with sea lice, its immune system is already compromised. By decreasing mucus production, salmon are left vulnerable.
GenusWave’s offers a new approach. By removing predatory seals from the aquaculture environment, nearly all predation stress is prevented. Logically, fish can return to their normal levels of mucus production. Although predation is only one of several stressors on farmed fish, a predation stress-free environment is a big step in the right.
GenusWave explores a new approach to dealing with sea lice in a recent article published in Fish Farmer Magazine