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Daily Current Affairs

Mud Crab Reovirus (MCRV)

Current GK (NDA) Sustainable Development and Envirnmental Issues

05-Jan-22

Andhra Pradesh recently found that ‘Mud Crab Reovirus (MCRV)’ has been the reason for mass mortality of wild crab (Scylla serrata).

Highlights

Presence of MCRV in samples collected from Nagayalanka fields was confirmed by Joint research by Centre for Advanced Study in Marine Biology (Annamalai University, Tamil Nadu) and M.S. Swaminathan Research Foundation (MSSRF).
MSSRF has been noticing mortality in areas like Machilipatnam and Nagayalanka in Krishna district, since 2019.
MCRV has taken a toll on wild crab in every farming method, crab polyculture and crab fattening in which shrimp and wild crab are cultured in exclusive mud crab ponds and in same pond.
Crab fattening technology was introduced in Andhra Pradesh by Central Institute of Brackishwater Aquaculture (CIBA-Chennai), in 2014.

About Mud Crab Reovirus (MCRV)

Mud Crab Reovirus belongs the “Reoviridae” family. It is responsible for the mass mortality of wild crabs. The virus mainly affects the connective tissue of hepatopancreas, intestine and gills.

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Try these Multiple Choice Questions

Question No.1

Consider the following statements.

Mud Crab Reovirus (MCRV) also known as Sleeping Disease is responsible for the mass mortality of wild crabs.
Crab Fattening and Crab polyculture are the methods of Crab cultivation.
Under Crab polyculture, shrimp and wild crab are cultured in the same pond.

Which of the above statements is/are correct?

1 only

1, 2

1,3

1,2 and 3