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By Dr. P.K. Ghosh PS & Head (WM) ICAR Research Complex for NEH Region Umiam, Umroi Road, Meghalaya PowerPoint Presentation
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By Dr. P.K. Ghosh PS & Head (WM) ICAR Research Complex for NEH Region Umiam, Umroi Road, Meghalaya - PowerPoint PPT Presentation

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A Brief Account on Analysis of water & sediment in Umiam lake. By Dr. P.K. Ghosh PS & Head (WM) ICAR Research Complex for NEH Region Umiam, Umroi Road, Meghalaya. Morphometric features of Umiam reservoir. (a) Bay. (b) Lentic sector. Uses of lake.

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slide1

A Brief Account on Analysis of water & sediment

in Umiamlake

By

Dr. P.K. Ghosh

PS & Head (WM)

ICAR Research Complex for NEH Region

Umiam, Umroi Road, Meghalaya

morphometric features of umiam reservoir
slide3

(a) Bay

(b) Lentic sector

uses of lake
Uses of lake
  • Primarily it meant for Umtru-Umiam hydro-electric project.
  • There is no organized fishery in this reservoir.
  • Subsistence fishing by the local people is common.
  • About 200-250 anglers come to this reservoir daily for fishing.
  • The common carp, Cyprinus carpio is the predominant sps.
  • Boating is the main recreation found in this lake.
procedure
Procedure
  • The surface water samples were collected which were analyzed for various parameters like (Temperature, PH, dissolved oxygen, free CO2, total alkalinity, total hardness, total dissolved solids, chloride)
  • Water transparency was measured using a secchi disc.
  • Sediment samples were collected using Petersen grab.
  • The sediment samples were also analyzed for their chemical characteristics like PH, organic carbon, organic matter, total nitrogen, available nitrogen, available phosphorus and available potassium.
  • Plankton was collected using standard plankton net made of bolting silk cloth.
  • Pesticide residue is analysed using HPLC.
table physico chemical parameters of umiam reservoir water during different season
slide7
slide8
chemical characteristics of sediment in umiam reservoir during different seasons
primary production in umiam reservoir during different seasons of the year
table diversity of zooplankton in umiam reservoir
table diversity of phytoplankton in umiam reservoir
slide13
total density of plankton in umiam reservoir during different seasons
contents of residues of different pesticides ug l in water samples collected from umiam lake
important isolates
slide17

Fig: Solid wastes accumulate in the lotic sector

Fig: Pollution from river Umkrah

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