Spawning sockeye salmon (Oncorhynchus nerka). Adult male (centre) and female (left) spawners swimming upstream to spawn. Sockeye salmon are anadromous

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Spawning sockeye salmon (Oncorhynchus nerka). Adult male (centre) and female (left) spawners swimming upstream to spawn. Sockeye salmon are anadromous, meaning they migrate from the ocean to spawn in the river of their birth. Spawners assume a vibrant red colour with a green head. After spawning, the adults die. Photographed in the Adams River, Canada.

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Size: 5190px × 3380px
Photo credit: © PETER SCOONES/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: adams, adult, america, american, anadromous, animal, biological, biology, bony, canada, fauna, female, fish, freshwater, male, migrating, migration, nature, nerka, north, oncorhynshus, pacific, pebbles, pisces, river, riverbed, salmon, salmonid, sockeye, spawner, spawners, spawning, swimming, underwater, upstream, water, wildlife, zoological, zoology