[MARMAM] Research paper on Ganges River Dolphin-Nepal
oasis.excurrent at gmail.com
Thu Jul 9 06:52:36 PDT 2015
We are pleased to announce the publication of our study:
Population status and habitat occupancy of endangered river dolphins in the
Karnali River system of Nepal during low water season
Paudel, S., Timilsina, Y. P., Lewis, J., Ingersoll, T., & Jnawali, S. R.
(2015). Population status and habitat occupancy of endangered river
dolphins in the Karnali River system of Nepal during low water season. *Marine
Mammal Science*, *31*(2), 707-719.
Ganges river dolphin abundance has undergone a predominant decline across
its range since monitoring began. In Nepal, disappearance from some of the
rivers it once used has already occurred. Today this species can only be
found in three river systems in Nepal, the Karnali, Sapta Koshi, and
Narayani, but numbers are low in these locations. To determine the
abundance of dolphins remaining in the Karnali system (which includes the
Karnali, Geruwa, and Mohana), and factors affecting dolphin habitat use, we
conducted surveys where we recorded dolphin presence. Dolphins within this
river system were sighted only in the Karnali and an abundance estimate of
5.04 ± 0.753 SE was calculated. This pattern of ranging differed from that
previously reported (from previous sightings only in the Geruwa to current
sightings only in the Karnali). River depth likely contributed to the
presence or absence of dolphins. Shifts in available habitat between the
Geruwa and Karnali have resulted from changes in the course of the main
stream Karnali following construction of the Chisapani irrigation intake.
Because of the low numbers of dolphins reported, there is great concern
that loss of this species in Nepal is likely in the near future.
For more details:
*Assistant Professor for Wildlife/GIS/RS *
* ||*Kathmandu Forestry College ||Kathmandu, Nepal || www.kafcol.edu.np
*South Asia Representative for *World Cetacean Alliance
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the MARMAM