Unidentified 'spawn'

Unidentified 'spawn'

Observation - Unidentified 'spawn'. Description: Spotted near the River Trent in Nottinghamshire, I have not seen anything like this before and neither has my colleague, who I was walking with.

Spotted near the River Trent in Nottinghamshire, I have not seen anything like this before and neither has my colleague, who I was walking with.