GENEVA: More than 1,000 freshwater fish species are threatened with extinction, reflecting the strain on global water resources, an updated global "Red List" of endangered species showed yesterday.

The list by the International Union for Conservation of Nature (IUCN) is the most respected inventory of biodiversity covering more than 47,000 of the world's species.

Scientists looked at 3,120 freshwater fish this year, 510 more than a year ago. They found that 1,147, or a third, are now threatened with extinction.