Anopheles mosquito breeding sites and Life cycle of Anopheles mosquitoes

Sponsor by :

 "This Content Sponsored by Buymote Shopping app

BuyMote E-Shopping Application is One of the Online Shopping App

Now Available on Play Store & App Store (Buymote E-Shopping)

Click Below Link and Install Application: https://buymote.shop/links/0f5993744a9213079a6b53e8

Sponsor Content: #buymote #buymoteeshopping #buymoteonline #buymoteshopping #buymoteapplication"

1. Anopheles mosquito breeding sites

Anopheles mosquitoes breed in natural water collections. Therefore, breeding increases dramatically in the rainy season when water collects in bottles, tins, tender coconut shells, buckets, tyres etc., that are thrown out in the open and these provide ample breeding ground.

All Anopheles mosquitoes choose clean fresh water bodies as their breeding grounds. In our country, the most common places with water can be divided as follows.

A)  Hills, Dense Forests Common Places: Ponds, Drains, Streams, Rivers, River Basins, Woodlands, Sluggish Streams, Funnel Runs

Streams, coppices, shaded funnels, low grassy areas, rainwater catchments etc.

B)  Stagnant water bodies with grasses and vegetation: Swamps, dry rivers, lakes, reservoirs, ponds, ponds, open fields, wells, deep stagnant drains, ditches, stagnant water bodies in a part of a river, whip grove water bodies, coconut grove water bodies, rainwater tanks etc.

C)  Open streams, river beds, grassy banks, drainage ditches, irrigation streams etc.

D) Fly fields, paddy fields.

E) canals, irrigation streams, living lakes morals.

F). Boulders, sandbars and bodies of water in disciplined areas.

G). Mud pits, animal hoof pits, cart-wheel pits, drainage ditches, crabbeds, road ditches, reedy swamps,

H) . Backyard wells, cisterns, drain pipes, ponds. Boundary water areas, stagnant water levels in concrete work areas

I). There are mosquitoes that breed in brackish or brackish water (eg) Anopheles sundicus.

2. Life cycle of Anopheles mosquitoes

Female Anopheles mosquitoes usually mate only once in their lifetime. They require a blood meal only after mating. Mosquitoes need blood to develop eggs.

Female Anopheles mosquitoes, which take blood meals on average once every two days, take the next blood meal after each egg is laid. Each species and species of Anopheles cockatoo is intelligent in choosing its special egg-laying sites. If their special habitats are not available they lay their eggs in stagnant unpolluted water. 

(A). Egg :

Female Anopheles mosquitoes lay eggs every two days throughout their lives. Eggs are laid individually. Eggs are laid at night. 100 to 150 eggs are laid in the water surface.

Eggs are 1 mm long. Brown or black in color. Boat-shaped eggs have air chambers on the sides. These make the egg float.

(B). Mosquito :

In hot weather, eggs hatch in 2 to 3 days and maggots emerge. Mosquitoes feed on bacteria, algae, microorganisms and organic matter on the surface of the water.

🌀Mosquitoes float on the surface of the water. Mosquito larvae develop and molt three times.

🌀That is, the mosquito that emerges from the egg is called the first instar, then the mosquito that emerges after the first moult is the second instar, the second instar is the third instar, and the third instar matures into the 4th instar.

This 4th stage adult maggot molts and metamorphoses into a maggot.

Mosquito larvae are about one cm long. Unlike other species of mosquitoes, Anopheles mosquitoes do not have a trachea in the abdomen. It draws in air through the respiratory tract in its abdominal cavity. It floats parallel to the surface of the water to get outside air through these breathing holes.

Palmate hairs help in floating parallel to the surface of the water. These anchor hairs are only found in Anopheles mosquitoes.

This transformation takes 6 to 7 days.

(C).Pupa :

The mating season is a very important season. Because it is during this season that the most important physical changes occur according to metamorphosis. It is only after this transition that the larval stage in water develops into an adult mosquito that can live on land or land

Compounds are comma shaped. Aphids are lateral When hatching, the comma-shaped head and thorax of the mosquito form a Cephaluthroat will be formed. Abdominal region of 10 segments joined to this cephalothorax is slightly curved.

Like mosquitoes, hookworms descend to the surface of the water to breathe in the fresh air. Then they breathe through the breathing tubes in the shape of the bellows in the ceparothorax.

Anopheles mosquitoes do not have breathing tubes. But having only spiracles, Anopheles angiosperms are unique in having tracheal tubes.

Anopheles spends its season at the upper surface of the water surface with the help of characteristic scaly hairs that are unique to the larvae of Anopheles mosquitoes. The caterpillar does not consume any food. After two days, frost appears on the body of the larva and the adult mosquito emerges by splitting.

(D). Adult mosquito :

First, male mosquitoes emerge early after mating season. Once the female mosquitoes emerge, the two broods fly together in each swarm for mating. This is called the mating dance and this swarm of flying mosquitoes is mostly seen only at dusk. After mating, female mosquitoes bite humans and animals and suck blood. The female mosquito survives for 25 days to 1 month depending on the temperature. Male mosquitoes feed on fruit juice or plant sap.

The mosquito's life cycle has its water season of 5 to 7 days and this period can sometimes last 5 to 10 days depending on the weather conditions. Adult mosquitoes complete the season in 28 to 32 days.

Density of Anopheles mosquitoes:

The presence of Anopheles mosquitoes in specific densities in an area is essential for transmission of malaria parasites. If there are no mosquitoes at a certain density, they will not be able to spread the disease in the area. This Specific densities are called critical densities. These dangerous concentrations vary from species to species.

Anopheles culicibacis can only spread malaria in an area if it is present in high density. But Anopheles buluviatilis mosquitoes can spread disease easily in very low densities. Therefore, the density of mosquitoes present in an area is a factor that accurately reflects disease transmission ability.