Hi Ghosh,

vertical profiling of marine faunal distribution such as macro, meiobenthos depth strata varies, here see the tables some of the previous studies

Depth strata Location Reference

0-1, 1-5, 5-10, 10-20 cm Arabian Sea Witte, 2000

0-2, 2-5, 5-10 cm Off Cape Lookout Blake, 1976

0-2, 2-5, 5-10 and 10-15 cm Douro estuary, Portugal Mucha et al., 2004

0-2, 2-5, 5-10, 10-15, 15-20,

20-25, 25-30 Central Indian Ocean Basin Pavithran et al., 2009

0-2, 2-4, 4-6, 6-8, 8-10 Intertidal benthic organisms off Goa Ingole et al., 2006

Coming to the diameter of the core

Plexiglass core tube diameter Location Reference

10cm length and 4.5 cm diam

0-5, 5-10 cm depth strata Some Rivers of the East Coast of India Ansari et al., 1982

0-2, 2-4, 4-6, 6-8, 8-10 Kakinada Bay and backwater, East Coast of India Vijayakumar et al., 1991

2cm sections Western and Central Indian Ocean Basin Parulekar et al., 1992