Fish

Millions of baby eels to be released into rivers

Four-tonne gate lifted into place on fish pass

Zones planned to protect wild salmon from sea lice

Anglers asked to kill invasive humpback salmon

Non-native Prussian carp 'threat' to UK fish

'We are selling a product that we hope gets discontinued'

Fishing lake not poisoned, investigators say

Lake fish deaths not down to disease - inspectors

Video shows fish reportedly poisoned in lake. Video, 00:00:19Video shows fish reportedly poisoned in lake

Thousands of fish reportedly poisoned in lake

How world's deepest fish was caught on camera. Video, 00:01:23How world's deepest fish was caught on camera

Deepest ever fish caught on camera off Japan

Thousands of trees planted to protect salmon

Australia begins mass fish death clean-up

Millions of dead fish wash up in Australian town

Millions of dead fish found in Australian river. Video, 00:00:48Millions of dead fish found in Australian river

The Essay. Lundy, Fastnet, Irish Sea: Wales and its Coastal Waters, What Has the Sea Become. Audio, 14 minutesThe Essay

World’s first octopus farm plans alarm scientists

Man's battle against otters eating pet fish

Andy's Global Adventures. Series 1, Andy and the River Chub. Video, 13 minutesAndy's Global Adventures

Project to dismantle weir sees fish breed

No fish market auction after boycott by processors

Sharks caught in estuary as wildlife flourishes