![]() More than 3000 aquaculture pond vector samples were collected from high-resolution Google Earth imagery and used in an object-based image classification approach to exploit the characteristic shape information of aquaculture ponds. The pixel-wise temporal median was calculated from all available Sentinel-1 data to significantly reduce the amount of noise in the SAR data and to reduce confusions with temporary inundated rice fields. Elevation and slope from Shuttle Radar Topographic Mission digital elevation model (SRTM DEM) data were used for masking inappropriate areas, whereas a coastline dataset was used to create a land/ocean mask. In this study, we extract land-based aquaculture at the pond level for the entire coastal zone of India using large-volume time series Sentinel-1 synthetic-aperture radar (SAR) data at 10-m spatial resolution. Due to its growing economic value and global demand, India’s aquaculture industry experienced exponential growth for more than one decade. The main impact of this research was to provide evidence to the gradual disappearance of the Fosu lagoon.Īquaculture is one of the fastest growing primary food production sectors in India and ranks second behind China. Hence, if current trend continues, the possibility of further degradation is very high. Also, adding to the threat of the lagoon were high levels of plastic waste and metal pollution. Also, it was evident in the result that the lagoon’s vegetation is now fragmented into six various vegetation types and the weeds in the lagoon make approximately one-third of the lagoon’s vegetation cover. Thus, the standing water has declined by 50.2 acres from 1970 to 2017 to physical development and weeds. The result indicated that the Fosu lagoon is characterized by a massive decline in lagoon size and the vegetation cover. In achieving the research objectives, remote sensing and GIS technique were used to effectively map the lagoon and the catchment area. Hence, the research was to map and assess the lagoon’s habitat and identify threats to the lagoon. Also, studies reveal that a major conservation challenge is the lack of inventory for the lagoon’s associated vegetation. Due to this, the lagoon is considered as one of the most polluted lagoons in Ghana. However, the lagoon and its associated marsh vegetation is under serious threat from human-induced interference. Like many lagoons in Ghana, Fosu lagoon is a major source of livelihood for its surrounding communities. The data are beneficial for sustainability assessment and to inform policies for a sustainable food futureĬoastal regions of Ghana are primarily engaged in sea and lagoon fishing. The demand has to be satisfied by imports, even after increasing local fishing effort. Despite cross- cultural and regional variations, there is a great overall preference for wild caught marine pelagic fishes. ![]() While the fish and seafood intake is relatively high, the total polyunsaturated fatty acids intake is borderline low. Average per capita fish and seafood consumption is 44.53kg/year, with higher levels observed in coastal (51.9kg/year) and rural (51.8kg/year) than urban areas (36.9kg/year). Fish and seafood is the prime animal protein source in Malaysian diet, comprising about one-third of total animal protein consumed. A food frequency questionnaire was adapted and administered on healthy adult participants above 18 years. This study was designed to generate baseline data of the fish and seafood consumption pattern among major ethnics in urban, rural, and coastal regions of Peninsular Malaysia. Since shrimp farms are created by replacing the mangrove habitats in the intertidal region, mangroves of Kannur district are under threat and needs serious intervention for long term survival. Penaeus monodon, Litopenaeus vannamei and Penaeus indicus are the shrimp species cultivated in the district. Of the five major Rivers in the district, Kuppam River has the majority of the shrimp farms followed by Dharmadam River. The traditional shrimp farming method accounts for 60.6% of the total farmed area while non-traditional shrimp farming accounts for 36.9% of the total farmed area both types are expanding fast in the district. We found that active shrimp farming area in the district is 524.4 ha in 2020. From the study, we have documented 140 shrimp ponds, which contributes to a total area of 524.4 ha. The present study was carried out to estimate the total area under shrimp farming in the intertidal regions of Kannur district. Shrimps have a productive correlation with mangroves habitat, thereby large-scale shrimp farming pose a serious threat to mangroves ecosystems. Mangroves are one of the most productive, diverse ecosystems on the planet and serve as a protective barrier for coastal areas.
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