Freshwater lakes and ponds are ... You have to introduce it, and that's where a lot of goldfish owners slip up because you can't just buy a fish the same day you get your tank.

Though goldfish often suffer from premature deaths due to unhealthy or improper tank conditions, they are actually one of the ...

Looking to add some diversity to your fish tank? Turn your attention to freshwater crustaceans. Not only are these ...

Scientists have decoded the secrets behind a goldfish's ability to survive in ice-covered lakes. They've worked out how and why the fish turn lactic acid in their bodies into alcohol, as a means ...

A report has warned of a "catastrophic" decline in freshwater fish, with nearly a third threatened by extinction. Conservation groups said 80 species were known to have gone extinct, 16 in the ...

This story appears in the April 2017 issue of National Geographic magazine. Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes ...

Hong Kong health authorities have issued a warning about the potential dangers of raw freshwater fish after 40 people contracted a deadly bacterial infection linked to the food. The Centre for ...

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have found. Large-bodied migratory species such as Atlantic salmon are thriving ...

INVESTIGATIONS of the diets of the Finnish Lapps 1,2 have revealed that fish is the second important source of radiocaesium for several Lapp groups. Unexpectedly, high radiocaesium values ...