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- W3202000790 abstract "Abstract The geographic information systems (GIS) play an important role in all geospatial aspects of assessment, monitoring and management of inland open water resources for strategic development in fisheries sector. In India, reservoir fisheries development is one of the flagship programme and several initiatives have been taken up towards enhancement and sustainable development. The present study investigates spatio-temporal changes in ecology and fisheries in Hirakud reservoir, Odisha build across river Mahanadi which features one of the largest dam in South Asia. The reservoir is mainly utilized for electricity generation, irrigation and offers tremendous scope to support fisheries and livelihood. As per the seasonal variation analysis, water spread area was at the minimum during premonsoon period. Most of the water quality parameters including nitrate, phosphate, BOD and alkalinity were higher in the premonsoon period and overall the parameters were under favourable range for fisheries. The present investigation from the fish landing sites of the reservoir, recorded merely 40 fish species, indicating loss of fish diversity as compared to the historical reports. The IUCN conservation status showed that among the 40 species only one species, Wallago attu is under VU category and 4 species Chitala chitala , Ompok bimaculatus , Ailia colia and Bagarius bagarius are under NT category. The analysis of time series annual fish catch data using ARIMA model forecasted the increasing trend of fish production. The water quality parameters were presented in GIS platform for better understanding of the spatial variations over time. Habitat protection of fish breeding grounds, closed seasons, mesh size regulations, scientific management and community participation are recommended as the measures for conservation of fish diversity and sustainable enhancement of fish production in the reservoir." @default.
- W3202000790 created "2021-10-11" @default.
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- W3202000790 date "2021-10-01" @default.
- W3202000790 modified "2023-09-26" @default.
- W3202000790 title "Spatio-Temporal Changes in Ecology and Fisheries in a Tropical Large Indian Reservoir: Insights From a Long‐Term Data Series For Sustainable Development" @default.
- W3202000790 doi "https://doi.org/10.21203/rs.3.rs-885951/v1" @default.
- W3202000790 hasPublicationYear "2021" @default.
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