What is a fish pike lifespan?

Answer 1

Scientists have proven that pike can be over 30 years.
30 years
The Northern Pike normally lives 5 to 15 years, but can be as old as 30. Age and size is driven by environmental considerations such as water temperature, availability of forage, amount of larger fish.

Answer 2

In common with most coarse fish, pike have a normal 'growing span' of 12-15 years only. Ageing from scale reading will 'under-age' old pike which have ceased growth because no growth checks will be recorded on the scales.

Anglers observations have shown that pike do not all die once growth ceases; we know that some fish can live on well into their 20s and possibly older. For example one fish which was tagged at a weight of 16.75lbs and with a length of 36.5in was aged at 14 years. Six years later it was re-caught weighing and measuring exactly the same! Pike are known to live to a maximum of fifty years.