CATDOLL : CATDOLL: Why is silver carp fishing not allowed in many places?

There are three main reasons why silver carp fishing is not allowed:

1. The first reason: reproductive defects:

Silver carp broodstock will not reach sexual maturity until they are three years old and weigh 3-6 kilograms. Silver carp is a migratory fish. After reaching sexual maturity, the broodstock will return to the place of birth, generally giving birth to their offspring in the source of large rivers or in rapids and shallows. Therefore, silver carp cannot reproduce in waters without migratory routes.

2. Secondly --- Purify water quality:

Silver carp lives in the middle and upper layers of the water, feeding mainly on algae, zooplankton and organic debris. Therefore, silver carp is also used to control the large-scale outbreak of blue algae in the water and purify the water quality.

3. Finally ---Main economic fish:

Silver carp is one of the four major carps in my country. It has the characteristics of fast growth, few diseases, and no need for special artificial feeding. It is still the main fish in pond farming, especially in suburban fish farming, and ranks first in production.

Summarize:

1. Fishing for silver carp is not allowed because silver carp does not need to be fed and can purify water quality, so you can just release the fry and wait for the fish to be harvested. In addition, silver carp in fish ponds, lakes and reservoirs are basically caught one less each time because of their limited reproduction.

2. Most fish, except silver carp, can reproduce in still water and will reproduce endlessly if caught.

Replenish:

Silver carp can grow in still water, but cannot reproduce in still water. The gonad development of silver carp must be stimulated by flowing water environment to fully mature, and the same goes for fish eggs.

The silver carp you see nowadays are all artificially simulated spawning grounds, which are used to stimulate silver carp to spawn. The fertilization rate under natural conditions is much lower than that under artificial fertilization, and the quality is not high either.

There are three reasons. First, many fish ponds are mainly used to raise silver carp and bighead carp. Other fish species are either slightly bred or simply wild fish, which you can catch at will. Another reason is that silver carp and bighead carp feed on plankton, which can purify water quality. The third reason is that silver carp and bighead carp only reproduce in flowing water. If there are no fry, one silver carp and bighead carp will be one less, unlike other carp and crucian carp, which will reproduce again after being caught, and will not affect the overall situation.