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Integrated Multi-Trophic Aquaculture Systems (IMTA)

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Relation http://eprints.cmfri.org.in/10666/
 
Title Integrated Multi-Trophic Aquaculture
Systems (IMTA)
 
Creator Sasikumar, Geetha
Viji, C S
 
Subject Aquaculture
 
Description The aquaculture production has grown steadily owing to the dramatic expansion in this sector worldwide.
During the past three decades production increased from 6.2 million t in 1983 to 70.2 million t in 2013 (FAO,
2015). Aquaculture surpassed the supplies from the capture fisheries and contributed nearly 51% to the global
fish production in 2013. This achievement was possible mainly because of the commercialisation of farmproduced
aquatic groups such as the shrimps, salmon, bivalves, tilapia and catfish. This sector also benefitted
from the significant production of certain low-value freshwater species through integrated farming, intended
for domestic production. This growth in marine aquaculture industry, has introduced many apprehensions
about the environmental impacts from aquaculture waste. Intensive finfish farming in cages can release significant
quantities of nutrients to the farm site, from uneaten feed, faeces and excretory products. These metabolic
wastes from farm effluents, mostly ammonia, may contribute to increased nutrients and localised eutrophication
in the farm. One of the major challenges for the sustainable development of aquaculture industry is to minimise
environmental degradation concurrently with its expansion. Though majority of aquaculture production originate
from extensive and semi-intensive farming systems, the recent increase in intensive farming of marine carnivorous
fed-species is associated with environmental concerns. Integrating waste generating (fed) and cleaning (extractive)
organisms in mariculture is a practical technology for sustainable mariculture. In a balanced integrated system,
aquaculture effluents can be converted into commercial crops while restoring water quality.
 
Publisher Central Marine Fisheries Research Institute
 
Date 2015
 
Type Teaching Resource
NonPeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/10666/1/7.%20Geetha%20Sasikumar.pdf
Sasikumar, Geetha and Viji, C S (2015) Integrated Multi-Trophic Aquaculture Systems (IMTA). [Teaching Resource]