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Studies on the biomass in the Deep Scattering Layer of the Indian EEZ

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Relation http://eprints.cmfri.org.in/5184/
 
Title Studies on the biomass in the Deep Scattering Layer of the Indian EEZ
 
Creator Menon, N G
Prabha Devi, L
 
Subject Acoustics
Invertebrata
 
Description The bioacoustic scattering layer of the EEZ of India is found in depths between 200 - 540 m. An additional layer is also
recorded at a depth of 20-100 m in some regions. The DSL shows characteristic vertical migration, ascending to surface or
epipelagic realm after dusk and descending down to a depth of 2W54Om during day. This study on the biomass of the DSL
is based on samples of 364 horizontal hauls by IKMT from the appropriate layers of the DSL during day and night collected
by FORV Sagar Sampada in her cruises 1 - 15 covering both the coasts of India. The estimated biomass in the DSL of the
surveyed area vary from 0.1 ml to 38.1 m1/100~with the highest abundance recorded from the region 7" - 10°3(YN and
70" -n030'E. Average monthly biomass varies from 2.1 to 21.0 m1/1000 m3 during day and 2.2 to 14.7m1/1000m3at night,
with peak values noticed during April and December.
 
Date 1990
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5184/1/36_Studies_on_the_biomass_in_the_Deep_Scattering_Layer_of_the_Indian_EEZ.pdf
Menon, N G and Prabha Devi, L (1990) Studies on the biomass in the Deep Scattering Layer of the Indian EEZ. In: Proceedings of the first workshop on scientific results of FORV Sagar Sampada, 5-7 June 1989, Kochi.