Increasing urbanisation and more intensive farming are killing New Zealand's freshwater fish species by degrading water quality, says the author of a report published this week by the Ministry for...
This is the seventh story in a continuing series on the Megafishes Project. Join National Geographic News on the trail with project leader Zeb Hogan as he tracks down the world's largest freshwater...
Australian scientists announced the discovery of a new species of freshwater fish on Tuesday, two decades after it was sighted in a disused uranium mine in the outback Northern Territory
Piranhas inhabit exclusively the fresh waters of South America. Their geographical distribution extends from the Orinoco River basin (Venezuela) to the North, down to that of the Paranu (Argentina)...
This is the fourth story in a continuing series on the Megafishes Project. Join National Geographic News on the trail with project leader Zeb Hogan as he tracks down the world's largest freshwater...
More than one in three of Europe's freshwater fish species faces extinction because ecosystems are being destroyed, the World Conservation Union said Thursday.
Scientists from Switzerland and...
A novel way of catching fish - stunning them with an electric current - has helped Northern Territory researchers rediscover a rare species.
The Lorentz's Grunter (Pingalla lorentzi) was found...
Thai fishermen caught a 293kg catfish that may have been the world's largest freshwater fish, wildlife conservation groups said.
The Mekong giant catfish was netted by villagers in a remote part...
Floating down the Mekong in his dinghy, Zeb Hogan is on the ultimate fisherman's quest: to find the world's largest freshwater fishes.
The American biologist's search is to take him to 10 rivers...