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Good Environment Management of cage farming using a coupled 3D hydrodynamic particle tracking model - A case study from Pizhala, Cochin, India

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Relation https://eprints.cmfri.org.in/14682/
doi:10.6024/jmbai.2020.62.1.2169-14
 
Title Good Environment Management
of cage farming using a coupled
3D hydrodynamic particle tracking
model - A case study from Pizhala,
Cochin, India
 
Creator John, Sebin
Muraleedharan, K R
Revichandran, C
Vineetha Valsalan, K C
Kripa, V
Abdul Azeez, S
Seena, G
Nair, Ravi Kumar C
 
Subject Cage culture
Aquaculture
 
Description Hydrographic conditions such as water level, velocity, adequate
water circulation and stratifications have a strong influence on the
management of fish cage culture in the estuarine environment. In
this study, a 3D hydrodynamic model was used to identify the areas
of the mixed and stratified water column and to use this in
conjunction with particle tracking models for appropriate site
selection for cage culture. A Lagrangian method was used to
simulate the instantaneous release of "particles" emulating discharge
from fish cages to show the behaviour of waste in terms of water
circulation and water exchange. Model simulation at Pizhala cage
farm revealed that desirable water exchange is experienced in the
monsoon and pre-monsoon period. There have existed strong
spring-neap variability in the water level with an average range of
0.7 m with a speed of < 0.12 m/s in pre-monsoon and < 0.24 m/s
in monsoon. This consistent flow patterns in the Pizhala region helps
in the replenishment of oxygenated water and removal of waste
produced beneath the cages, and it is corroborated by the
Lagrangian particle transport model experiment coupled with Finite
Volume Community Ocean Model (FVCOM) in the study.
 
Publisher MBAI, Cochin-14
 
Date 2020
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier https://eprints.cmfri.org.in/14682/1/JMBAI_2020_Vineetha%20Valsalan_Pizhala%20Cage%20farming.pdf
John, Sebin and Muraleedharan, K R and Revichandran, C and Vineetha Valsalan, K C and Kripa, V and Abdul Azeez, S and Seena, G and Nair, Ravi Kumar C (2020) Good Environment Management of cage farming using a coupled 3D hydrodynamic particle tracking model - A case study from Pizhala, Cochin, India. Journal of the Marine Biological Association of India, 62 (1). pp. 100-108.