Adult on left with spawn masses, resembling everted, high, white collars.
Mersey Estuary, England. Late January, 2010, when land temperature was below freezing. Hundreds were spawning on the shore.
Adult on left with spawn masses, resembling everted, high, white collars.
Mersey Estuary, England. Late January, 2010, when land temperature was below freezing. Hundreds were spawning on the shore.