Temporary storage in the cabin cold storage, transportation by refrigerated vessels, on-site processing by the mother ship, and several methods used separately or in combination. Once upon a time, the life of fishermen was poetic, and these last hunters only needed a light boat and a leaf, and the vast expanse of blue waves drifted away with the waves. Due to the past, the lives of fishermen were poetic, and these last hunters only needed a light boat and a leaf, and the vast expanse of blue waves gradually drifted away with the waves. Due to the fact that offshore fishing often occurs in the morning and returns in the evening, there is no problem with preserving the catch.

    The good times are not long, and the global offshore fishery resources are irreversibly depleted, while the demand for deep-sea fishing products in the market is becoming increasingly strong. This push and pull has prompted many fishermen to try to move towards the deep sea. However, before setting sail, fishermen still need to solve several difficult problems, which are: can fishing boats reach deep-sea fishing grounds? Even if we arrive at the fishing ground, who will provide meteorological warning, fish detection, medical support, oil and food supplies? Is it economically cost-effective to return immediately if the cabin is full, and can a boat of fish cover the fuel cost for the round trip?

    How to solve the problem of fish spoilage during the return voyage? The initial solution was to build larger and more functional large fishing vessels. Previously, most offshore fishing vessels had a displacement of only a few tons or more, making it obvious that such small vessels could not enter the ocean for operations. So, can we build a super fishing boat? It should have a displacement of nearly a thousand tons (or even thousands of tons), be equipped with a complete set of expensive equipment such as radar and fish detectors, have a -60 ℃ ultra-low temperature cold storage on board for preservation, and can carry hundreds of tons of fuel, food, and medicine supplies, equipped with dozens of crew members. This type of ship can go out to sea on a single vessel and carry out self-sufficient ocean going operations.