The purpose of this study was to identify the potential site for sustainable aquaculture development in Mymensingh district using GIS as a tool.
A multiple purpose wetland inventory is being developed and promoted through partnerships and specific analyses at different scales in response to past uncertainties and gaps in inventory coverage. A partnership approach is being promoted through the Ramsar Convention on Wetlands to enable a global inventory database to be compiled from individual projects and analyses using remote sensing and GIS. Individual projects that are currently part of this global effort are described.
The Hindu Kush-Himalayan (HKH) region, home to the largest concentration of glaciers outside of the polar region, is the ‘water-tower’ of Asia. The HKH mountain ecosystem provides life support services to almost a third of humanity. Many mountain issues such as management of water resources, climate change, biodiversity conservation and hazard mitigation are interconnected in nature and, therefore, need to be considered holistically.
Fish museums across the world are a repository of historical data on fish abundance and occurrence. These occurrence points when mapped provide a picture of present-day and earlier fish distribution. The accuracy of the map will depend on how exhaustive the museum collection is for the area, and also on the museums’ collection practices (comprehensiveness and survey design).
Andaman and Nicobar Islands houses vivid ecological habitats with diverse set of ecosystems varying from low altitude sandy beach forest to high altitude dense humid evergreen forests. The islands on account of their isolation, harbors a phenomenal degree of endemic plants and animals species along with rich marine life. The present study, using the application of earth observation system and geospatial tools aims to compare and explore the intra variability of landscape structure as well as the diverse vegetation pattern in North Andaman and Baratang Islands of the Andaman group.
The present study investigates the potential of readily available and easily accessible global data sets to understand regional/local level interactions in wetland systems. The biogeographical zones of India were used a base-frame to select three sites. The study well fits the interests of National Wetland Committee of India to investigate and document fundamental information on wetland extent/distribution. The national partnership with SACON represents this interest.
Kolleru lake, India’s largest fresh water lake, and lone Ramsar site in Andhra Pradesh state have undergone tremendous changes due to development of aquaculture. Large-scale aquaculture practices, increased industrial activity, increased number of human settlements, etc. have exploited the lake’s resources which created an extensive ecological imbalance, hence instabilising the sustainability process. The present study highlights the assessment of aquaculture in Kolleru lake using multi-temporal satellite datasets.
This study was an attempt to apply land-based GIS analysis for freshwater aquaculture planning in the Red River Delta of Vietnam. It was based on diverse data sources in order to help decision makers at the site and also to contribute to the modelling of selection processes for aquaculture development planning in the region.
Bleached corals provide a strong optical signal that suggest that remote sensing investigations of major bleaching events are feasible using airborne or satellite sensors. However, patchy coral cover, varying intensities of bleaching, and water depths are likely to limit the application of remoter sensing techniques in monitoring and mapping coral bleaching. Today, satellite multi-spectral sensors routinely provide images of reefs from 4 m (Ikonos) to 30 m resolution (Landsat); however, the adequacy of these sensors for monitoring and mapping bleaching events remains unclear.
This paper identifies and assesses potential brackishwater aquaculture areas on a regional/provincial perspective using geographic information systems (GIS) and multicriteria technique on three sites in the Philippines - Lingayen Gulf area, San Miguel Bay in Bicol region and Negros Occidental. Criteria used cover biogeophysical factors, i.e. soil texture, elevation, land use, physiography and socioeconomic components like settlements, ongoing economic activities other than aquaculture. Some limitations of the study with respect to the use of GIS and the study sites are discussed.