Danube an important industry. The Upper Danube ecoregion alone has about 60 fish species and the Lower Danube–Dniester ecoregion has about twice as many. Among these are an exceptionally high diversity of sturgeon, a total of six species (beluga, Russian sturgeon, bastard sturgeon, sterlet, starry sturgeon and European sea sturgeon), but these are all threatened and have largely–or entirely in the case of the European sea sturgeon–disappeared from the river. The huchen, one of the largest species of salmon, is endemic to the Danube basin, but has been introduced elsewhere by humans. Important tourist and natural spots along the Danube include
Common Bird Monitoring of India Common Bird Monitoring of India The Common Bird Monitoring Program is a citizen science bird monitoring program of India. It is a pioneer project that aims to engage general public in the collection of baseline data on 18 common bird species. Data collected will be used to map species abundance and distribution throughout the Indian subcontinent. The program is an initiative of the Nature Forever Society, supported by the Jaypee Group. It was launched in the city of Mumbai on World Sparrow Day, 20 March 2012. Bombay Natural History Society (BNHS), Mumbai launched its Common Bird Monitoring Program in 2015.