Bahraich: A 750-km stretch of the Ghaghara river, from Uttar Pradesh to Bihar, is being surveyed to assess the population of Gangetic dolphins, locally known as Soons, and the health of their natural habitat.The survey began at the Chaudhary Charan Singh Girijapuri Barrage in Bahraich, under the Katarniaghat Wildlife Sanctuary, and will cover the river stretch from Kailashpuri and Gerua in Uttar Pradesh to Revelganj in Bihar.A 15-member team of experts has been formed to conduct the survey and assess aquatic wildlife and biodiversity in the river. The exercise began on Sunday, with senior project associate Gautam leading the team.The primary objective is to determine the presence and population of Gangetic dolphins and assess the condition of their natural habitats. The team will also collect information on other aquatic animals, waterbirds and environmental conditions along the river.According to the survey plan, six team members will focus on Gangetic dolphin-related studies, while three will study aquatic birds. Two members will examine natural habitats, while data on microorganisms will also be collected.Divisional forest officer (DFO) Katarniaghat wildlife sanctuary Apoorva Dixit told TOI that the data collected through the survey could help authorities and conservation experts formulate future strategies to protect Gangetic dolphins, preserve their natural habitats and safeguard the ecological balance of the Ghaghara river across Uttar Pradesh and Bihar.During the 750-km survey, the team will examine the river’s condition and document the presence of different aquatic species at various locations.The findings are expected to provide insights into the river’s ecosystem and the factors affecting its biodiversity. The data could help authorities and conservation experts formulate strategies to protect Gangetic dolphins, preserve their natural habitats and safeguard the ecological balance of the Ghaghara River across Uttar Pradesh and Bihar.