Half full or half empty PERCH?

Perch (Perca Flavescens), Fishes' Art Print - Encyclopaedia Britannica

Yellow perch, staple of Wisconsin fishing culture, are in trouble

Where the Mega Perch live - Spain 2021 - projetbassthumb

Perch - Wikipedia

Bank Fishing The Ocean!

Half full or half empty? And does it matter?, by Claes Jonasson

Low but Stable: Yellow perch populations in Great Lakes' bays and open waters

Is your glass half full? Perhaps you're asking the wrong question.

Halfmoon/Blue Perch California Sea Grant

Kelp Paddy Fishing - Melton Tackle