breeding perch?

breeding perch?

Observation - breeding perch?. Description: Are these perch breeding? The Red on the fins suggest this and so does the way they are laying in a dip in the lake bottom. The lake is about 200m long and 25m wide and 2.5m deep with about 1.5m cube replenishment of water per minute.

Are these perch breeding?
The Red on the fins suggest this and so does the way they are laying in a dip in the lake bottom.
The lake is about 200m long and 25m wide and 2.5m deep with about 1.5m cube replenishment of water per minute.