A coastal Ramsar site on transition to hypoxia and tracking pollution sources: a case study of south-west coast of India.
Autor: | M K VS; Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, Kerala, India, 695581., Joseph S; Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, Kerala, India, 695581. jsabu2000@gmail.com., P S A; Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, Kerala, India, 695581., Sheela A M; Kerala State Pollution Control Board, Thiruvananthapuram, Kerala, India, 695004., Ghermandi A; Department of Natural Resources and Environmental Management, University of Haifa, Haifa, Israel., Kumar A; School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing, 210044, China. |
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Jazyk: | angličtina |
Zdroj: | Environmental monitoring and assessment [Environ Monit Assess] 2022 Oct 28; Vol. 195 (1), pp. 45. Date of Electronic Publication: 2022 Oct 28. |
DOI: | 10.1007/s10661-022-10602-x |
Abstrakt: | Coastal lakes and estuaries are considered economic drivers for coastal communities by delivering invaluable economic and ecosystem services. The coastal ecosystems are facing recurrent hypoxia events (dissolved oxygen; DO < 2.0 mg L -1 ) and are emerging as a major threat to ecosystem structure and functioning. The Ashtamudi Lake, (area = 56 km 2 ), is one of the Ramsar sites in the State of Kerala and located on the SW coast of India. The waterways are extensively used for backwater tourism and for fishery activities. This paper discusses the spatio-temporal variation of water quality attributes with emphasis on hypoxia during non-monsoon and monsoon seasons. The extent of hypoxia on fishery diversity was discussed. The Southern Zone, adjacent to the urban area, shows the hypoxic condition with higher concentration of BOD, NO (© 2022. The Author(s), under exclusive licence to Springer Nature Switzerland AG.) |
Databáze: | MEDLINE |
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