Sockeye salmon
| Sockeye salmon | ||||||||||||
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Sockeye Salmon ( Oncorhynchus nerka ) |
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| Scientific name | ||||||||||||
| Oncorhynchus nerka | ||||||||||||
| ( Walbaum , 1792) |
The sockeye salmon ( Oncorhynchus nerka ) or Sockeye Salmon (English sockeye ; Russian Nerka , of which the scientific name is derived) is a species of the Pacific living salmon . It can be up to 90 cm long. In the sea it has a blue-green back and silver belly, in the waters on land it has a light green head, red back and tail (hence the name) and a silver belly.
The sockeye salmon is found on the North American coast of the Pacific from Alaska to the Sacramento River in California , on the Asian coast from the Anadyr Basin to Hokkaidō , especially on the east coast of Kamchatka , less often in the Sea of Okhotsk (northern part and east coast of Sakhalin ). As adults, the fish live in the open ocean. The salmon are born in lakes on the mainland and stay there for about a year. Then they migrate into the sea - this process can take up to three years. They stay there for two to four years until they swim back to where they were born, where they spawn and die.
Of all the Pacific salmon species, sockeye salmon has the greatest economic value.
The long migrations between the waters of their birth and the open sea are attributed to their magnetic sense in sockeye salmon, king salmon and ketal salmon .
Web links
- Sockeye salmon on Fishbase.org (English)
- Oncorhynchus nerka inthe IUCN Red List of Threatened Species 2013.2. Posted by: Rand, PS, 2011. Retrieved December 2, 2013.
Individual evidence
- ↑ Kenneth J. Lohmann, Nathan F. Putman and Catherine MF Lohmann: Geomagnetic imprinting: A unifying hypothesis of long-distance natal homing in salmon and sea turtles. In: PNAS . Volume 105, No. 49, 2008, pp. 19096-19101, doi: 10.1073 / pnas.0801859105 .