CURRENT AFFAIRS

2016

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which ROV is being used to map coral reefs in Andaman & Nicobar Islands
A
SROVe
B
VROVe
C
BROVe
D
PROVe
Explanation: 

Detailed explanation-1: -Remotely operated underwater vehicle (ROV)-based spectral irradiance measurements at South Andaman coral reef islands are used to derive water quality parameters (chlorophyll-a, total-suspended sediments, turbidity, salinity, Secchi disk depth, diffuse attenuation coefficient) at different depths of the water column.

Detailed explanation-2: -Andaman and Nicobar Islands are the richest of the Indian region in coral diversity with as many as 179 species belonging to 61 genera. The common genera contributing to the reef formation are Acropora, Montipora, Pocillopora, Porites, Goniopora, Soft Coral (Sarcophyton sp.)

Detailed explanation-3: -The Andaman and Nicobar islands have fringing reefs and a 320 km long barrier reef on the west coast. The Lakshadweep Islands are made up of atolls.

Detailed explanation-4: -1021 square kms in Andaman and Nicobar Islands. Coral reefs are considered “Tropical Rainforests of the Sea”.

Detailed explanation-5: -The correct option is B 2 only. Explanation: A coral reef is an underwater ecosystem characterized by reef-building corals. Coral reefs are made up of colonies of hundreds to thousands of tiny individual corals, called polyps.

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