375
AM
Some common AM in this lake are Hydrilla
verticillata, Nymphaea nouchali, Nymphaea
micrantna, Zizania caducifl ora, Setaria pallidefusca, Phragmites karka, Euryale ferox,
Polygonum barbatum, Centella asiatica, Ipomoea
aquatica, Scirpus lacustris, Cynodon dactylon,
Imperata cylindrica, Trapa natans L.var bispinosa, Oenanthe javanica, etc.
Fishes
This wetland has about 40 species of fi shes, with
general abundance of cyprinids (but less IMC) and
air-breathing fi shes. Some of the fi shes in this lake
are Puntius chola , P . ticto , P. sophore , Catla catla,
Cyprinus carpio, Labeo rohita, Amblypharyngodon
mola, Lepidocephalichthys guntea, Glossogobius
giuris, Trichogaster fasciata , Channa punctatus,
C. striata , Anabas testudineus, Heteropneustes
fossilis , Monopterus albus, etc.
20.2.12.3 Utra Lake
It is an old eutrophic wetland (commonly called
lake) situated in Nambol village at a distance of
20 km from the south of Imphal City. It
(Plate 20.60b ) lies between 93° 45′ and 94° 0′ E
longitude and 24° 30′ and 25° 45′ N latitude,
about 787 m above MSL. The total water surface
area of the lake is about 0.366 km
2 with maximum length and breadth measuring approx.
0.741 km and 0.493 km, respectively, at FSL. The
wetland has a depth of 2–5 m at FSL. Kanakhong
is the only small inlet which is a tributary of
Nambol River.
Plankton and Macro-invertebrates
Some of the zooplankton and macro- invertebrates
are Euglena sp., Daphnia sp ., Cyclops sp ., Cypris
sp., Planaria sp., Belostoma indicus, Gyrinus marinus, Dytiscus marginalis, Hydrophilus caraboides,
Laccotrephes branchialis, Notonecta glauca,
Gryllotalpa gryllotalpa, Gerris gibbifer, etc.
AM
About 52 species of AM belonging to 19 families
are said to occur in this lake, many of which
belong to families Polygonaceae and Poaceae.
Some of the plants are Hydrilla verticillata,
Eichhornia crassipes, Monochoria hastata,
Sagittaria guayanensis, Alpinia galanga, A.
niger, Lemna perpusilla, Scirpus lacustris,
Cynodon dactylon, Phragmites karka, Setaria
pallidefusca, Zizania caducifl ora, Nymphaea
micrantha, Ceratopteris thalictroides, Nymphaea
nouchali, Euryale ferox, Polygonum barbatum,
Rumex maritimus, Trapa natans L. var. bispinosa,
Plate 20.60a Awangosi Lake
20.2 Wetlands of Northeast India (The Water Wealth of Northeast India)
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