salmon life cycle ielts
It is immediately apparent that the salmon spend a half of their lives inhabiting in freshwater while the other half is in the sea. After initially hatching in a slow moving river each Salmon spends roughly equal amounts of its 10 year cycle in fast flowing freshwater and open seas.
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Then at some point in their development the fish swim downstream to river estuaries where rearing continues.
. Overall the salmons life cycle has 3 phases. Besides before moving on to the ocean there is a common area named an estuary where estuary rearing occurs. Salmon begin their lives in rivers where the adult fish lay and incubate their eggs.
In addition salmon travel to the river estuary ocean and return to their place of birth. Band 85 IELTS report sample. You can understand it this way.
Overall it goes through four different stages of development. After 4 year they move to the lower river where is fast flowing pass it and live at the open sea when they was an adult salmon like they parent return to the river lay an egg and end the life at. Finally the adult salmon will find a mate and lay salmon eggs by the upper river.
Eggs embryos fry smolt and the adult fish. At the first stage in these diagrams after hatching from salmon eggs the fry which has the length of 3-8 cm change their habitat from upper river to lower river. Overall a salmon fish goes through six main phases to fully grow from their hatching period and they spend their lives in three distinct locations river estuary and ocean.
Fry grows there for approximately 4 years and becomes smolt. Camouflage from any prey. Overall salmon have an average lifespan of 9 years and their life cycle consists of four main stages.
Thus the life cycle of a salmon fish springs from the incubation stage in a river. We can see that the life cycle of salmon is consist of 8 stagesamong which salmon migrant place to place for growthFrom very beginningthe adult lying eggs in the riverthen the eggs would develop into emergence form and then travel to freshwater area to growthWhen their figure get more biggerthey will migrant to estuary area continuing growth. While the first three stages occur in freshwater the last one takes place in saline water.
Adult salmon fishes lay eggs in rivers and. It begins with spawning followed by a series of steps and finally ending with the growth and maturation of salmon fish. Firstly adult salmon return to the upper river to lay an egg under the small stones and reeds approximate 5 or 6 month for the little fish appear begin the cycle life as they parent use to have.
The diagram below shows the life cycle of a salmon from egg to adult fish. For approximately 5 years into an adult salmon which they could grow around 70-76 cm long. Eggs stay incubated in the stony.
The egg stage the fry stage the smolt stage and the adult stage The life cycle begins when. The flowchart illustrates the different stages involved in the life cycle of a salmon. Overall there are 3 distinct stages in the life cycle of a salmon starting with the egg stage and ending with the adult stage.
This life cycle is from the movement of the small-size salmon to salmons reproduction after nearly 10 years. Thereafter it moves to rear areas. We can see that the life cycle of salmon is consist of 8 stagesamong which salmon migrant place to place for growthFrom very beginningthe adult lying eggs in the riverthen the eggs would develop into emergence form and then travel to freshwater area to growthWhen their figure get more biggerthey will migrant to estuary area continuing growth.
It is clear that there are six major steps in the development process of salmon beginning as eggs and ending as mature adults. The diagram depicts the life cycle of salmon fish dividing it into different stages from its egg stage till adulthood. At the beginning of the life cycle eggs are laid and incubated in rivers.
The diagram illustrates how the salmons life cycle takes place. After fully growing up adult salmon goes back to upper river to lay eggs and thus cycle repeats itself. The given process illustrates the various steps involved in the life cycle of salmon fish Overall it is clear that the lifecycle of salmon fish includes eight stages.
Adult salmon fishes lay eggs in rivers and incubate their eggs there. Then they stay in freshwater to grow further. Detail 1 To begin with the adult salmon lay eggs upriver where the current is slow.
Fry lives between 5 to 6 months in this location. Next smolt swims into open ocean where it lives for 5 years and finally becomes adult salmon. As the diagram shows the first stage in the salmons life cycle begins with the hatching of eggs.
After that fish goes to lower river which has a lot faster stream speed. By these diagrams we could conclude how salmon life cycle happen and we could keep on feasting their tender meat. After emerging from eggs the salmon fry spend some.
Egg fry smolt and adult. It is clear that there are three main stages shown on the diagrams. After emerging from eggs the infant salmon spend their next stage in freshwater and this phase is called emergence.
Meanwhile freshwater rearing happens and then these all migrate to the ocean. As shown in the diagram in the upper where the water flows slowly countless salmon eggs are laid and incubated between. After emerging from eggs the young salmon spend the next stage of their lives being reared in freshwater areas.
The red part is correct. Commencing with the initial phase of salmon fish is incubation and emerged in the river.
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