Cause of death of herring in batch

As a common fish species, herring is farmed more. Don't panic when you encounter mass death when you are in aquaculture. Find out the cause first. There are not many reasons that can lead to mass death of herring. Let's take a look at some of them.

1. The water temperature is too high

Water is the place where fish live, and fish are basically not resistant to high temperature, so when the water temperature rises, the herring will slowly not adapt, and naturally die in batches over a long period of time. Many farmers basically do not consider this problem, but in fact, this factor does exist. In many places, the temperature in summer will exceed the bearing limit of herring, and it is more obvious especially in fish fry. Just watch the temperature drop.

2. Hypoxia

Death caused by hypoxia is common, after all, farmers have more or less encountered such a situation. The herring itself grows faster, which leads to its relatively high demand for oxygen, while the flow rate of live water into many ponds is not large, which leads to the consumption of oxygen in the water is not as fast as the rate of increase, and finally the herring dies in bulk. Herring culture density should be appropriately smaller, because it can grow to dozens of jin, if not careful, it may be raised in vain.

3. Water pollution

Many people think that herring is a kind of fish that depends on pollution. In fact, despite the fact that herring looks very dirty, its demand for water quality is not poor at all. In addition, herring is a kind of fish that is easy to pollute water quality, and its excrement is also relatively large, so the problem of water pollution of herring is actually quite serious. We find that when we die in bulk, we must consider the problem of high water pollution.

4. Disease

The disease is more common, the whisper itself is less, more often is the injury, the wound infection leads to the disease, and the herring is one of the more infectious diseases, which is also the cause of mass death caused by the disease. For such herring, it can be determined by checking whether there is a wound on the body, and some need to be dissected to see what the disease is.

These are some of the reasons for the mass death of herring. Don't throw the dead fish in a hurry. Check carefully to see how they died, so that the problem can be solved later.