Heather the Leather was a 50 year old scaleless (also known as leather) carp

Carp

Carp are various species of oily freshwater fish of the family Cyprinidae, a very large group of fish native to Europe and Asia. The cypriniformes are traditionally grouped with the Characiformes, Siluriformes and Gymnotiformes to create the superorder Ostariophysi, since these groups have certain...

, Heather has been described as "Britain's most famous fish"
Heather was one of the oldest and largest carp in Great Britain

Great Britain

Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

 and weighed 52 pounds (23.6 kg) and despite incorrect allegations in the press of being caught over 1000 times, this is more likely to be under 75 times. A full list of the captures was recorded by Yateley anglers on the that-aint-no-bream website. She was deemed by many carp anglers, both in the UK and across Europe as the ultimate fish to catch given her age, history and how difficult it was to catch her.

At the time of her death in June 2010 she was around 50 years old and worth £30,000.
Heather was discovered dead at the edge of a lake at Yateley Complex

Yateley Complex

The Yateley Complex is a working gravel pit and a series of fishing lakes at Yateley, Hampshire operated by CEMEX, the world's largest building materials supplier. The fishing side of the facility is under the management of CEMEX Angling, a subsidiary of the main company...

 on June 1 2010, and is thought to have died of old age.

The fish was buried by anglers near the lake with a headstone

Headstone

A headstone, tombstone, or gravestone is a marker, usually stone, that is placed over a grave. In most cases they have the deceased's name, date of birth, and date of death inscribed on them, along with a personal message, or prayer.- Use :...

and memorial rosebush.