Open Access Open Access  Restricted Access Subscription or Fee Access

Determination of Land Cover Changes and Suitable Shrimp Farming Area Using Remote Sensing and GIS in Southwestern Bangladesh

Md. Monirul Islam, Md. Kawser Ahmed, Md. Abdus Shahid, Sirajul Hoque, Dilshad Islam


The present study was conducted to identify and quantify suitable sites for shrimp farming at Debhata upazila of Satkhira district, Bangladesh, using remote sensing technique and GIS. The spatial and temporal changes of land cover were determined using Landsat images of 1977, 1990, 2000 and 2004. The Landsat TM data and secondary data that included land elevation, crop intensity, land capability association and soil salinity along with primary data of water and soil characteristics such as pH, dissolved oxygen, salinity, phosphorus, potassium, tidal fluctuation and soil texture were used to produce a shrimp farming suitability map. The map was also verified by integrating with different facilities such as sources of water, sources of shrimp post larvae, roads, ice factories, shrimp markets, shrimp processing plants and NGOs. Shrimp farming areas were gradually increased while cropland areas were gradually decreased that reveals an unplanned horizontal expansion of shrimp farms. The shrimp farming suitability map indicates that out of 17362 ha available land, 5756.82 ha (33.14 %), 2336.02 ha (13.45 %), 3089.42 ha (17.78 %) and 6188.34 ha (35.62 %) were under very suitable, suitable, moderately suitable and unsuitable categories, respectively. The study suggests that shrimp farming should be confined within the very suitable areas to avoid horizontal expansion of shrimp farming without any environmental and social consequences. The present study has demonstrated the usefulness of remote sensing technique and GIS to select suitable sites and as a tool for planners to develop strategic plans for sustainable aquaculture development.


Remote sensing, GIS, land cover, shrimp farming

Full Text:


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.