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Assessment of impact of aquaculture on mangrove environments in the South East Coast of India using remote sensing and geographical information system (GIS).

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Title Assessment of impact of aquaculture on mangrove environments in the South East Coast of India using remote sensing and geographical information system (GIS).
Not Available
 
Creator M. Jayanthi
L.Gnanapzhalam
S. Ramachandran
 
Subject Aquaculture
Mangrove Environments
South-east coast of India
Remote sensing
Geographical Information system (GIS)
 
Description Not Available
Rapid development of aquaculture in coastal areas has raised worldwide concern
on its potential role in mangrove habitat loss. This study is an attempt to assess the impact
of shrimp aquaculture on the mangroves eco systems. The land resources used for aquaculture development were mapped from satellite data and analysed using Geographical
Information System (GIS) to assess the extent of conversion from different land types to
aquaculture. The digital data from Landsat -TM of 1987, IRS 1B - LISS II of 1994, IRS
1C- LISS III of 1998 and IRS - 1D LISS III of 2004 were used for the study. Aquaculture
area has increased from 6.91 ha in 1987 to 386.33 ha in 2004. Change detection analysis
using GIS indicated that mangroves of 4.84 ha and degraded mangroves of 6.16 ha were
converted for aquaculture. Major development of aquaculture has occurred from agricul tural lands (176.99 ha) and fallow lands (234.25 ha). Forest plantation of 21.68 ha, mud flats of 23.63 ha, water bodies of 18.13 ha and sandy areas of 60.87 ha were converted for
aquaculture between 1987 and 2004. The aquaculture farms of 15.03 ha, converted from agricultural lands were reconverted back to agriculture due to disease problems. The
shrimp culture practiced in 109.47 ha was abandoned and lying as fallow lands. Man groves at Pichavaram were not affected due to the development of shrimp culture. The
study indicated that remote sensing and GIS techniques are ideally suited to the task of
assessing changes in the mangrove environments due to aquaculture and have the potential to contribute for sustainable aquaculture.
Not Available
 
Date 2023-08-02T10:50:51Z
2023-08-02T10:50:51Z
2007-01-01
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/80399
 
Language English
 
Relation Not Available;
 
Publisher Not Available