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Analysis of sediment, fish and phytoplankton samples from Indawgyi Lake, Myanmar

Kernan, M; Turner, SD; Henderson, G; Goodrich, S; Yang, H; (2015) Analysis of sediment, fish and phytoplankton samples from Indawgyi Lake, Myanmar. (ECRC Research Reports 167 ). UCL Environmental Change Research Centre: London, UK. Green open access

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Abstract

Fauna and Flora International are coordinating a management plan for Indawgyi Lake (under consideration as a Ramsar and UNESCO World Heritage Site) in Myanmar. Part of this process will be to set-up monitoring protocols for the inflow/outflow streams and the lake. Potential impacts on the lake include artisanal gold mining in the in-flow streams, farming around the lake (mostly rice) and some waste inputs from villages. There are further concerns related to the introduction of invasive fish (Oreochromis niloticus – Nile tilapia) and plant (Eichhornia sp. ‘water hyacinth’) species. In 2015 the following samples were collected following advice from ENSIS: i) water samples to measure phosphate, nitrates and sulphates (and other N, P, and S species that may be appropriate)*; ii) river and lake sediments and biological material (fish biopsy from whole small fish or tissue from larger fish) to measure heavy metal concentrations (with key elements being mercury, arsenic, lead and copper). Fish samples were preserved in 100% ethanol. Samples were taken of sediment (in triplicate) from about 15 locations from tributary rivers and from the lake periphery (45 samples in total); iii) water column samples from Indawgyi Lake (10 cm below the surface) to measure algae abundance and algal species composition. Samples were preserved in Lugol's iodine, initially from 1 l of water but siphoned to about 150 ml final volume.

Type: Report
Title: Analysis of sediment, fish and phytoplankton samples from Indawgyi Lake, Myanmar
Open access status: An open access version is available from UCL Discovery
Publisher version: https://www.geog.ucl.ac.uk/research/research-centr...
Language: English
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/1497168
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