What are the biological predators? How to prevent it?
2024-09-03 08:02:36
Muddy burrows are shallow and have poor mobility. They are prey for various kinds of inner-eating animals in the ocean. The main types of muddy enemy animals are the following:
(1) Mallard
The common name is water duck and wild duck. It is a migratory bird that breeds in the northern regions of Europe, Asia, and North America every summer. To the fall and winter season, it appeared in the south of the sea in winter. The main bivalves, such as loach, are extremely harmful to the seedlings.
(2) Shell worms
The common name is Jiang mud board. The back of the body protrudes, the ventral surface is flat, the front end is slightly pointed, the rear end is truncated, and the head plate is in the shape of a slipper. The skin is milky or yellow and slightly transparent. The shape looks like a snail. Live in a muddy beach and feed on shellfish. Every spring, with the trend of entering Putian, eating seedlings, and even eating 1 cm body length seedlings, the harm is quite serious.
Control methods: During the spawning season of the clams, the humans are organized to capture them, and at the same time eradicate their egg groups to destroy their offspring. Spraying the surface with a 0.2%-0.3% solution of carbolic acid can force the shell out of the hole and allow it to be captured.
(3) Spotted snails
Also known as snails, shells are thin and hard, small in size, and smooth in surface. The shell is light yellow and the shell is covered with purple-brown spots, hence its name. Living in muddy beach, like to come out on a cloudy day or in the morning and evening, the harm is the same as that of the red snail. It is also using the body's secrete acid to corrode the shell and suck it.
(4) Black Top
The common name is Wuyi and Haishumai. The shells are thin, the shell is about 1 cm long, slightly triangular, and the shell is black. Many groups roost on muddy beaches near the mid-tidal area, and their fertility is very strong. They stick to each other with full-filament and closely cover the beach surface, seriously affecting the feeding, breathing and growth of the seedlings, and even smothering the seedlings.
Control methods: According to the characteristics of the black top and the top dead after leaving the water than the muddy, they can be fished into the basket together with the loach. After one day, the black top is dead. At this point, it can be removed and the seedlings can be put back into the pond. It is also possible to scrape the ducks or do the fertilizer with Joe seedling bags after the low tide.
(5) Bullet fish
The common name is mud monkey or jumping fish, which is long and flat. Big eyes are small. The whole body has tiny scales and dark brown color. It likes to live in the mudflats in the high tide area. The bile is extremely small and can be scared. It can quickly leap forward into the nearby cave or into the leeches. Capture. As the shellfish are good at hole drilling, they can easily fall into the hole and die.
Preventive method: Use a string of ropes to connect small bamboo pipes, and insert them into the muddy coating in dry tide. At the time of high tide, the mudflater drills into the bamboo tube. After the tide ebbs, the bamboo tube can be pulled up and captured.
(1) Mallard
The common name is water duck and wild duck. It is a migratory bird that breeds in the northern regions of Europe, Asia, and North America every summer. To the fall and winter season, it appeared in the south of the sea in winter. The main bivalves, such as loach, are extremely harmful to the seedlings.
(2) Shell worms
The common name is Jiang mud board. The back of the body protrudes, the ventral surface is flat, the front end is slightly pointed, the rear end is truncated, and the head plate is in the shape of a slipper. The skin is milky or yellow and slightly transparent. The shape looks like a snail. Live in a muddy beach and feed on shellfish. Every spring, with the trend of entering Putian, eating seedlings, and even eating 1 cm body length seedlings, the harm is quite serious.
Control methods: During the spawning season of the clams, the humans are organized to capture them, and at the same time eradicate their egg groups to destroy their offspring. Spraying the surface with a 0.2%-0.3% solution of carbolic acid can force the shell out of the hole and allow it to be captured.
(3) Spotted snails
Also known as snails, shells are thin and hard, small in size, and smooth in surface. The shell is light yellow and the shell is covered with purple-brown spots, hence its name. Living in muddy beach, like to come out on a cloudy day or in the morning and evening, the harm is the same as that of the red snail. It is also using the body's secrete acid to corrode the shell and suck it.
(4) Black Top
The common name is Wuyi and Haishumai. The shells are thin, the shell is about 1 cm long, slightly triangular, and the shell is black. Many groups roost on muddy beaches near the mid-tidal area, and their fertility is very strong. They stick to each other with full-filament and closely cover the beach surface, seriously affecting the feeding, breathing and growth of the seedlings, and even smothering the seedlings.
Control methods: According to the characteristics of the black top and the top dead after leaving the water than the muddy, they can be fished into the basket together with the loach. After one day, the black top is dead. At this point, it can be removed and the seedlings can be put back into the pond. It is also possible to scrape the ducks or do the fertilizer with Joe seedling bags after the low tide.
(5) Bullet fish
The common name is mud monkey or jumping fish, which is long and flat. Big eyes are small. The whole body has tiny scales and dark brown color. It likes to live in the mudflats in the high tide area. The bile is extremely small and can be scared. It can quickly leap forward into the nearby cave or into the leeches. Capture. As the shellfish are good at hole drilling, they can easily fall into the hole and die.
Preventive method: Use a string of ropes to connect small bamboo pipes, and insert them into the muddy coating in dry tide. At the time of high tide, the mudflater drills into the bamboo tube. After the tide ebbs, the bamboo tube can be pulled up and captured.
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