The Manas River in its origin inside Bhutan is known as Dang-me-chu.
It is splits up at Mathanguri or Mathanguri in India in to two major
I. Bispani/ Hakuwa
II. Manas/ Beki
On the upper reaches both the rivers are bouldery bedded and is characterized
by very low temperature of river water for about 3-4 Km. Down stream. Beyond
that the channels are devoid of rapids. The predominating feature in the
higher reaches is the high speed and volume of water which does not occur
beyond 3-4 Km. Down stream. Beyond that distance the water becomes warmer
finally at the National Park boundary the water regains normal temperature.
This zonation of water temperature could be the cause fish bio-diversity in
these rivers. A study carried out by Guwahati University Zoology department
found as many as 106 species of fishes in this river. Of late there has been
tremendous fishing in this river depleting the large sized fishes which have
been heavily poached for consumption. This has tremendously effected the
predators dependent upon the rivers.
GOALS & OBJECTIVES
To maintain bio-diversity and purity river water and also the landscape of
Based upon the scientific value and its bio-diversity in this eco-system
scientific studies must be carried out with reference to Tiger and other
To develop the Manas/ Beki river in to a heritage river.
Strengthen measures to stop fish poaching.
Re-buildup the beast at Kahitama, Kuhighat, Ouguri, Sidajhar,
Gabhorukhunda and Bhalaguri.
Route system linking
4. To co-ordinate with the Bhutan authorities to keep the river free of any
chemicals like detergents, soaps etc. along with the human fecal matters and
survey prior to writing this management plan has confirmed that in this
eco-system the fish population is trying to recover. Hence the entire river
eco-system be put to a period of rest and monitoring for five years during
which at various research at the eco-system have been made along with
population growth of the fish fauna. The research team also should monitor
all mammalian and Avian predators as well. The time frame for
Establishment of camp, road etc. = 1st year
Scientific Studies = 1st year to 5th year
Measure of siltation loss of water purity must be monitored.
Two jet boats NOT, OBMs are required from any agency.
6 Nos of country boat required.
Because of the nature of the river it keeps on changing its navigable
channels leaving a wide area in the bosom of the river in form of river
island call Tapu. These are good enough as habitats or cover for wild
buffalos. It is quite known that there were ephemeral, touch and go between
annual flood and re-growth of river in Grasslands in these areas.
This river system is the only source of quality water utilized by all the
major fauna. For Tigers, Elephants, Buffaloes, deer of all species, bison,
leopards and the cats, this is the only source of water during severe
drought. Available drinkable water in a plenty to the west is at Kanamakra
river and towards the east only at few Bhabar Terai Nalas in the winter
season for large mammals which show tendencies of local migration in the East
Elephant migration takes in accountof the low volume- shallow water
configuration to cross over to the either side of the Manas/ Beki river. It
is the only major obstacle on their migration route. Of late, there has been
a tendency for elephant herds to stick to the this river bank till vegetation
affords them food.
Ecological/ Environmental/ Wildlife values of this river is unsurpassed and
the government of India and as well as the Royal Kingdom of Bhutan must not
in any way interfere by building dams or other drainage projects.
The aesthetic value of this river system is unique in the world and must be
preserved for posterity. With the sparkling river water mirroring the
cloudless winter sky and shiny white boundary and banks can give a mind
blowing experience combined with the soothing rush of rapids. The moonlit
winters are a different thing altogether. The scenic river can be enjoyed
visually from the autumn onwards with the flowering of Saccharum spontaneum
which create an illusion of fluffy flowers stretching along miles along the
grassy river banks.
The golden Mahseer and other sporting fishes of the genus Barbus are
excellent for harmless kind of river fishing with rod and line and there are
overseas tourists who are willing to pay up in pound sterlings or in dollars
to participate in such exhilarating activities.
There are even groups of Indian and overseas people with a spiritual and
mystical bent of mind who would also, in small numbers, like to meditate in
the serene environments of the riverside.
All that is required from us is a will to preserve all that this river has to
offer and save it for posterity.