species:Sockeye Salmon

According to information I got from Ocean Wise, Sockeye Salmon is mostly wild, and we should avoid catching Gillnet, Purse Seine and Troll varieties in the US, Washington, Oregon and California regions. In these areas, hatchery fish are mixed with wild salmon populations and are likely to capture natural salmon that are classified as endangered species. Therefore, in order to prevent the extinction of endangered species in the area, these fish should be resisted.

When fish are farmed, the fish is very dense, so the growth environment is not good and the fish is prone to illness. And because of the limited space available, excreta does not disperse in time, so nearly a quarter of fish can quickly spread fish disease. These fish are cultured in the process of interacting with wild fish, spreading the disease to wild species, infecting most of the wild fish and killing them. If this continues, it may kill all our fish: farmed and wild, so I think farmed fish are not sustainable.

The advantage of farmed fish is that it provides a guaranteed “harvest” for fish farmers and they can control the variety and yield obtained, thus reducing the price of fish. I think that the way to make the aquaculture sustainable is to raise the fish to the young age and then stock it in nature so that the fish can be more dispersed, the likelihood of disease is greatly reduced, and it will be more natural. When the fish is back, the fishermen can catch them with the big net, so that we can put more fish back into the ecosystem, which can effectively avoid the occurrence and spread of fish diseases.

2 thoughts on “Fishing

  1. It would make sense to do so, but since our world is run by economics, the question would be: who would supply this fish? And who gets to catch it? If there’s no money to be made, it seems like it wouldn’t be beneficial to a company to just raise the fish and then just release them.

    • We can still build fish farms and then update the water in the fish ponds daily. The replacement water can also be recycled and re-disposed into the pool after sterilization, thus avoiding waste of water. The number of fish in each fish pond should be reduced to allow the fish to have more open activities, thereby reducing the occurrence and spread of disease and harvesting fish in large quantities. However, the early funds invested in this project are still a great expense, and will be effectively solved in the later period as the fish are harvested and sold.

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