Why are fish still alive when they are placed in a sealed plastic bag?

When we see fish being put into sealed plastic bags, they are still alive and kicking. There is actually a secret behind this. The key to fish surviving in plastic bags is the role of the sealed plastic bags, which create a microenvironment suitable for fish survival.

Plastic bags are very airtight and can effectively prevent the loss of oxygen and water. When fish are placed in plastic bags, the plastic bags, as a closed container, can maintain the moisture and oxygen content in the fish and isolate harmful factors from the outside. At the same time, plastic bags can also prevent fish from being hit and pressured by the outside world during transportation.

Although the fish is placed in a sealed plastic bag, it still needs some necessary conditions to maintain its vitality. First, the maintenance of water quality is very important. Fish need clean, oxygen-rich water to maintain their life activities, so the water quality must be treated and adjusted before being placed in the plastic bag. Secondly, the right temperature is also a key factor in keeping the fish alive. Different species of fish have different temperature requirements, and it is crucial to ensure that the fish is placed in a suitable temperature environment.

Oxygen is essential for fish survival and plays an important role in fish bodies. In a sealed plastic bag, oxygen gradually decreases, so in order to keep the fish alive, a certain amount of oxygen is usually injected into the plastic bag. In this way, the fish can absorb enough oxygen through breathing to maintain its life activities.

In addition to the effect of plastic bags, water quality and temperature also have a direct impact on the survival of fish. Water pollution and high or low temperatures will have an adverse effect on the health of fish. Therefore, before putting fish into plastic bags, make sure the water is clean and the temperature is suitable to provide a good living environment for fish.

Although sealed plastic bags play an important role in fish survival, there are also some risks. First, the quality and sealing of the plastic bags need to be guaranteed to avoid leakage or rupture. Second, long-term sealing may cause metabolic imbalance in fish and bring some potential health problems. Therefore, when transporting fish in sealed bags, it is necessary to monitor oxygen levels and minimize transportation time to reduce risks.

Fish can survive in sealed plastic bags thanks to the airtightness of the bags and the suitable environment they create. However, in order to keep the fish alive, we also need to pay attention to the control of water quality and temperature, and carefully handle the risks posed by plastic bags. Through these measures, we can ensure that the fish remain alive and healthy during transportation and storage.

Author: Duan Yuechu