Perca fluviatilis - Perch
Young perch are shoal fish, but the larger specimens tend to be solitary
creatures. They prey on other fish, and are particularly well camouflaged
when hiding among reeds such as tape-grass and flag irises in the margins
of lakes, canals or slow-flowing rivers.
Perch spawn among marginal weeds between April and June
and take about four years to reach maturity. Any perch over 2 lb (approx.
1 kg) is a very good one, although in some parts of Wales they have been
known to grow to twice that size.
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