Articles
Irrigation demands aggravate fishing threats to river dolphins in Nepal
11 November, 2016

We found that maintaining ecological flows in sync with sustainable fishery regulations is key to averting river dolphin declines in even not-dammed rivers like Karnali in Nepal.

To See or Not to See: Investigating Detectability of Ganges River Dolphins Using a Combined Visual-Acoustic Survey
07 May, 2014

Detection of animals during visual surveys is rarely perfect or constant, and failure to account for imperfect detectability affects the accuracy of abundance estimates. Freshwater cetaceans are among the most threatened group of mammals, and visual surveys are a commonly employed method for estimating population size despite concerns over imperfect and unquantified detectability.

River dolphin distribution in regulated river systems: implications for dry-season flow regimes in the Gangetic basin
12 January, 2012

River flow regulation and fragmentation is a global threat to freshwater biodiversity, ecosystem processes, and associated human activities. Large dams in the Ganges river basin of the Indian subcontinent have severely altered natural flow regimes, particularly in the low-flow dry season. Altered flows could have negative impacts on endangered species such as the Ganges river dolphin Platanista gangetica.

Habitat Fragmentation and Species Extirpation in Freshwater Ecosystems; Causes of Range Decline of the Indus River Dolphin (Platanista gangetica minor)
16 July, 2014

Habitat fragmentation of freshwater ecosystems is increasing rapidly, however the understanding of extinction debt and species decline in riverine habitat fragments lags behind that in other ecosystems. The mighty rivers that drain the Himalaya – the Ganges, Brahmaputra, Indus, Mekong and Yangtze – are amongst the world’s most biodiverse freshwater ecosystems. Many hundreds of dams have been constructed, are under construction, or are planned on these rivers and large hydrological changes and losses of biodiversity have occurred and are expected to continue.

Indicator Species (Gharial and Dolphin) of Riverine Ecosystem: An Exploratory of River Ganga
18 August, 2013

The Ganga River sustains diverse group of flora and fauna including the endangered Ganges river dolphin (Platanista gangetica gangetica) and critically endangered gharial (Gavialis gangeticus). Because, of the highest productivity and most populous regions on earth there is a strong demand and competition for natural resources, which threatened the survival of indicator species such as gharial and dolphin in river Ganga.