Fish

Washed-up tuna shows species' UK return - experts

Council to ban goldfish prizes at fairgrounds

Wild salmon study aims to tackle species decline

Low oxygen levels in river may have killed fish

Probe after dozens of dead fish found in River Spey

River scheme aims to improve water quality

Fish under threat following Hinkley permit change

Allegations rare skate among dumped dead fish

Anglers fundraise to restock lake after fish deaths

Some 600 fish relocated for M25 upgrade

Hundreds of dead fish found at fishing lake. Video, 00:01:10Hundreds of dead fish found at fishing lake

Piranhas' vicious reputation has no teeth, says zoo

Sea pool reopens after fish influx

Is your pet fish damaging the environment?

Fish move freely thanks to bypass channel

Fish removed from lake after levels drop again

Investigation after dead fish found in pond

Dozens of dead river fish apocalyptic, says walker

Angling suspended as thousands of dead fish found

Hundreds of fish found dead in quays

This video has been removed for rights reasons. Video, 00:00:11This video has been removed for rights reasons

Thousands of fish wash up on Texas coast. Video, 00:00:20Thousands of fish wash up on Texas coast

Tracking the travel itinerary of a river's salmon