Question

Can fish in estuarine ecosystem survive in river as well as sea

Answer 1

yes,they survive.....

Answer 2

Yes fish in an estuary can survive in both river as well as sea.

Explanation:  

• Usually fishes that live in an aquatic system do not live in fresh water similarly fishes in fresh water do not live in an aquatic environment.  

• The fishes in fresh water are equipped with certain special vacuoles that help them to maintain loss of fluids or gain of fluids through the process of osmosis.  

• But estuary is a place where the sea meets the fresh water and hence the fishes in that locality are capable of handling both the environments.  

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