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Environment and Ecology

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Nayachar Island is a recently emerged riverine island. With 151 species it has become a rare case of ecology. In which of the following rivers does it occur?

Ganga

Hoogly

Narmada

Kaveri

Explanation:

Nayachar Island

It is an emerged island in the middle estuary of the Hooghly River.
?It was created in the Indian Sundarbans (mangrove ecosystem) by river silt deposits.

News:

?Publication/Study by Zoological Survey of India (ZSI) has listed 151 animal species on the island, making it a rare case in ecology.
?The study is aimed at understanding soil stabilisation in an emerging island [and] the succession of living organisms in a new habitat.
?The natural succession of species on the island has been aided by the inundation of water during tides, and the soil brought from other places by fishermen
?A total of 27 species of fish and 37 species of birds have been recorded.
?The 104 islands of the Indian Sunderbans, both habited and uninhabited, are distributed in West Bengal’s South 24 Parganas and North 24 Parganas districts.

THINK!

Bhagirathi-Hooghly river system
?Farraka Barrage

By: Shubham Tiwari

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