Brown trout eggs. Close-up of one-week-old eggs of the brown trout Salmo trutta on a river bed. The brown trout is a large edible fish related to salm

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Brown trout eggs. Close-up of one-week-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 fertilized, most will be washed out of the pit and eaten by other fish.

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Size: 5113px × 3543px
Photo credit: © SCIENCE PICTURES LIMITED/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1, 1-week-, animal, bony, brown, egg, eggs, england, english, fauna, fish, hertfordshire, kingdom, mimram, nature, pisces, river, salmo, trout, trutta, uk, united, week, wildlife, zoological, zoology