Fish

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

Millions of baby eels to be released into rivers

Four-tonne gate lifted into place on fish pass

KS3/GCSE Geography: UK rivers case studies

Zones planned to protect wild salmon from sea lice

Anglers asked to kill invasive humpback salmon