- Salmon return to their native river to spawn with amazing accuracy.
- Salmon are carried out to sea by the current, tail first, their bodies undergoing complex biological and biochemical changes en route to enable them to survive salt water.
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Salmon (European & Pacific)
Mankind's use of salmon has been dated back to the Palaeolithic period. At one time, it was so common it used as pig-swill! Today, modern fishing methods and commercial salmon farming threaten the survival of wild populations.
Key Facts
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Common Name
Salmon
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Scientific Name
Family Salmonidae
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Size
Atlantic salmon can grow up to 32kg
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Geographic location
North Atlantic and Pacific Oceans
Food for thought
Salmon is a popular food, and is classified as an 'oily fish'; recommended for a healthy diet.
Fishing and the processing of salmon play a major role in many economies. Whilst overfishing and badly managed fisheries have contributed to the decline of many species of fish, including some salmon populations, the Alaska salmon fishery, which is responsible for around 90% of wild caught salmon in North America, has been MSC certified since 2000.Related links
More information
One amazing journey
Typically, salmon are anadromous: they are born in freshwater, migrate to the ocean, then return to freshwater to reproduce (there is a sub species of Atlantic salmon that stays in freshwater lakes). The journey made by those salmon that survive this quest to reproduce is one of nature's greatest triumphs.The salmon must swim hundreds even thousands of miles, to get back to the stream where they hatched. Whilst many simply do not have enough fat stores to make the trip, others must battle through fishermen's nets, over power dams, up waterfalls and rapids, and struggle past eagles, otters and bears to reach their destination.
Salmon spend between 1 and 7 years out in the ocean, depending on the species. Pacific salmon usually die within a few days or weeks of spawning. Atlantic salmon can make the trip from freshwater to ocean and back a number of times.
Why is it under threat?
Populations of wild salmon in the Pacific and the Atlantic have been steadily decreasing due to a number of factors. It has been estimated that there has been a 50% worldwide decline in Atlantic salmon over the last 20 years. The main problems are:- Cross contamination by farmed salmon. This has led to the spread of diseases to wild populations, especially sea lice.
- Commercial overfishing, especially in the Faroes and Greenland.
- Climate change is now also having an impact on salmon populations. As cold-blooded fish, salmon struggle to survive when the temperature of streams and rivers rises above 20 degrees Celcius.
- Habitat loss and degradation of stream pools.
- Lack of force behind regulations and rules designed to help salmon populations recover.
Priority species
Salmon is a WWF priority species. WWF treats priority species as one of the most ecologically, economically and/or culturally important species on our planet. And so we are working to ensure such species can live and thrive in their natural habitats.
What is WWF doing?
WWF works to protect the oceans and supports the promotion of sustainable fishing and well managed fisheries.
- It lobbies the groups responsible for managing the health of the oceans such as the North Atlantic Salmon Conservation Organization (NASCO). Download report: Wild Atlantic Salmon on the Brink.
- It also works to protect and restore the rivers, lakes and streams which form the natural habitat of species such as salmon.
- WWF argues for more effective controls of farmed salmon to ensure minimal adverse effects associated with effluent discharges, disease transmission and spread of parasites. Download report: Protecting Wild Atlantic Salmon from Impacts of Salmon Aquaculture.
- It has played a key role in the promotion of the Marine Stewardship Council (MSC); and has promoted the concept of sustainable seafood to both fisheries, retailers and consumers.
Support WWF in its work to conserve priority species like salmon.
How you can help
Ask the question! Always ask for sustainably sourced salmon. Even if it isn't available, demand for sustainable seafood will drive fisheries and retailers towards a sustainable future. Look for MSC certification on salmon and salmon products.More sustainable shopping tips