Brown trout eggs. Close-up of one-day-old eggs of the brown trout Salmo trutta on a river bed. The brown trout is a large edible fish related to salmon. Three types of brown trout exist,living in the lakes,rivers and oceans of Europe. All trout come to rivers to spawn. The yolk-rich eggs are laid in a pit excavated in the river bed by the female. A single female may lay up to 10,000 eggs. The male fertilizes the eggs with his milt (sperm) after the eggs are laid. Only a tiny proportion of the eggs will be fertilised,the rest are washed out of the pit and eaten by other fish | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Pictures |
Taille de l’image : | 4855 px × 3269 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |