-Mongabay India * Every year, several ponds and lakes across various Indian states become sites of mass fish deaths. * The primary cause for this phenomenon is water pollution, most often stemming from anthropogenic activities. * A key parameter of water quality is dissolved oxygen which can indicate the capacity of a water body to support aquatic life. In a survey of water bodies across six Indian states, not a single water body...

-Down to Earth Average river water temperatures may rise 7°C in summer by 2070-2100 Climate change may turn India’s rivers into hostile environments for aquatic life by 2070-2100, scientists warned in a new study.  River water temperatures may increase during the period and dissolved oxygen levels may decrease, the study published in Scientific Reports has predicted.  Under a high-emissions scenario, average river water temperatures are expected to climb 7 degrees Celsius in summer, reaching...

-Down to Earth The Kala Talab has been filled with fly ash and soil to build residential colonies in the east Rajasthan city on the Chambal, resulting in crocodile deaths Some 50 mugger crocodiles have died in the last one month in a prominent waterbody of Rajasthan’s Kota city as a result of it being filled up for developmental activities, locals and wildlife activists have alleged. The Kala Talab (‘black pool’) is connected...

-Hindustan Times “It is hereby brought to the notice of all concerned that in view of the high pollution levels in the Yamuna waters, as per the provisions made in the rules (formulated under Indian Fisheries Act, 1897), the issuing of fishing licence in two portions of public waters is suspended till further orders,” the notification read. The Delhi government’s animal husbandry department on Tuesday banned fishing in parts of river Yamuna,...

-The Hindu Cleaner stretches recorded across all riverine States New Delhi: The water quality of the Ganga in 2018 has “improved over last year”, according to a written statement in the Rajya Sabha on Monday by junior Water Resources Minister Satyapal Singh. The statement said “dissolved oxygen” levels had improved at 39 locations, and “biological oxygen demand” (BOD) levels and faecal coliform had decreased at 42 and 47 locations respectively. These three parameters...