Wildlife

Perch: Native Predator Recovery and Angler Welfare Responsibilities

Perch populations are recovering from disease but responsible angling practices remain essential for their welfare.

Key Facts

Perch populations crashed in the 1970s from a disease called perch ulcer syndrome
Recovery has been slow and populations remain vulnerable in some waters
Perch are highly curious predators and are among the easier fish to catch
They form schools particularly as juveniles but larger fish become more solitary
Perch can live over 20 years in undisturbed waters

Welfare Considerations

Perch welfare in angling depends on careful handling as their sharp dorsal fin spines can cause injury to both fish and angler. Mucous coat damage from dry hands reduces disease resistance. Catch and release of large perch from cold deep water can cause issues with swim bladder expansion during rapid ascent. Overcrowded commercial fisheries can spread bacterial infections rapidly.

What You Can Do

Always wet hands before handling perch to protect the mucous coating
Lower large perch carefully from depth rather than allowing rapid surface ascent
Support stocking policies that do not overcrowd perch in commercial fisheries
Report suspected disease outbreaks in perch populations to the Environment Agency
Participate in coarse fish recording schemes that track population recovery