Location: in Badgam district
in the Kashmir Valley, 10 km west of Srinagar, Jammu & Kashmir
Area: 1300 ha
Altitude: 1580m
Biogeographical province: 2.38.12
Wetland type: 14
Description of site: A permanent eutrophic lake,
once an oxbow, surrounded by freshwater marshes on the flood-plain of the
Jhelum river in the Kashmir Valley. The lake is drained by a channel to the
Jhelum river at Sozeth Narbal Village. It is fed by perennial streams, the
Doodhganga and Sukhnag, and flood waters. The lake reaches a maximum depth
of 2.5 m in spring with snow-melt water, and a minimum of 0.7 m in autumn.
The water is very turbid, with little light penetration. The underlying soils
are of a silty-clayey-loam type. The pH is greatly affected by the high summer
temperatures which accelerate the process of decay of organic matter
Climatic conditions: Sub-mediterranean climate with
very warm, relatively dry summers (May to August), and cold, wet winters (October
to March) with some precipitation in the form of snow. The average annual
rainfall is 550 mm, most of which falls between January and March. Average
temperatures range from 7.5°C in winter to 19.8°C in summer
Principal vegetation: Marsh vegetation dominated
by Typha angustata, T. laxmanii, Phragmites communis, Eleocharis palustris,
and Butomus umbellatus. Traps natans occurs in open-water areas. At least
156 species of phytoplankton have been recorded, with Chlorophyceae predominating.
There are many floating gardens in the lake, plantations of Salix albs along
the shoreline, and rice paddies in surrounding areas
Land tenure: The lake is state-owned (Government of Jammu
& Kashmir); surrounding agricultural land is owned by local villagers
Conservation measures taken: The lake is protected as a game
sanctuary by the Department of Wildlife Protection Jammu & Kashmir. Waterfowl
hunting is allowed on a controlled basis in winter, and the harvesting of
reeds is permitted in summer. Management, to date, has included the construction
of bunds and installation of a sluice gate to control water levels
Conservation measures proposed: Various proposals have been
made for the management of the lake, including the cutting of weeds, dredging,
raising of bunds, diversion of the Doodhganga Flood Channel to reduce siltation,
and erection of a perimeter fence. The State Advisory Board has approved a
proposal for the reserve be upgraded to Sanctuary status
Land use: Fishing, waterfowl hunting in winter and harvesting
of reeds in summer; cattle grazing in and around the marshes, and rice-growing
in the surrounding areas
Disturbances and threats: The main threats are increased
siltation, eutophication, and the encroachment of agricultural land into the
peripheral marshes. Some 400 ha of the lake have already been reclaimed for
agricultural purposes, and the paucity of cultiviable land in the region is
likely to lead to further reclamation as population pressure mounts. Fertilisers
used on nearby agricultural land enter the lake in run-off and accelerate
the rate of eutrophication. The lake receives a heavy load of silt from the
Doodhganga catchment area, and the expanses of open water are decreasing in
size as the lake silts up and the reed-beds expand into the lake
Economic and social values: The lake supports a small fishery
and a reed-cutting industry, and provides a source of water for irrigation.
The harvesting of waterfowl populations provides a source of protein for local
consumers. The lake is of considerable interest for scientific research, and
provides opportunities for nature-oriented outdoor recreation such as bird-watching
Fauna: An important wetland for both resident and
migratory waterfowl. The lake is particularly important as a wintering area
for migratory ducks and as a breeding area for herons, egrets, and rails.
Up to 25,000 wintering ducks have been recorded at one time; Fulica atra have
also been reported in winter, and up to 3000 Anas querquedula occur on migration.
Breeding species include Tachybaptus ruficollis (up to 1000 individuals),
Ixobrychus minutus, Nycticorax nycticorax (100), Egretta garzetta (400), Ardea
cinerea (500), Rallus aquaticus, Gallinula chloropus (500), and Hydrophasianus
chirurgus (100). Pallas’s fish-eagle (Haliaeetus leucoryphus) is resident
in the area, and the kingfishers Alcedo atthis, Halcyon smyrnensis, and Ceryle
rudis are common
The otter (Lutra lutra) is still fairly common in the lake, and other mammals known to occur in the reserve include Vulpes vulpes and Canis aureus. The lake supports A rich fish fauna, including Cyprinus carpio, Crossocheilus sp., Puntius conchonius, and Gambusia affinis. The zooplankton includes at least 44 species of protozans, 18 rotiferans, and 38 crustaceans (mainly Cladocera and Rhizopoda)
Special floral values: No information
Research and facilities: Biologists from the Department
of Botany at the University of Kashmir have conducted a considerable amount
of limnological and ecological research at Hokarsar and four other similar
lakes in the Kashmir Valley. The research has included studies of the mineral
composition, biogeochemical cycling, plankton population, biomass, productivity,
trophic sucture,ecology of macrophytes, and feeding ecology of the breeding
birds. The Department of Wildlife Protection has also carried out some research
at the lake, and has conducted waterfowl counts
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