Pacific salmon are anadromous fishes of the genus Oncorhynchus, native primarily to the North Pacific Ocean and its tributaries in Asia and North America. This genus includes multiple ecologically and morphologically distinct species (e.g., O. kisutch, O. tshawytscha, O. nerka, O. keta, O. gorbuscha), characterized by complex life cycles involving freshwater spawning and early development, marine growth, and homing migration to natal streams. They exhibit semelparity, strong local adaptation, and fine-scale population structure, making them model organisms in evolutionary biology, ecological genomics, and fisheries science, as well as key components of North Pacific aquatic ecosystems and nutrient cycles.
Fish that split their lives between fresh and salt water often face obstacles getting back and forth. Dams and roads fracture river networks and interfere with traditional migratory routes, sparking concerns about fish health ...
Plants & Animals
Jun 4, 2026
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Along the California coast, from Bodega Bay to Morro Bay, commercial fishing boats have started pulling in salmon for the first time in three years, and local salmon are once again appearing on restaurant menus and in seafood ...
Ecology
May 26, 2026
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Juvenile Chinook salmon in the Lower Fraser River estuary are feeding and growing in a slurry of contaminants from pharmaceuticals, personal care products to industrial chemicals, according to a new Simon Fraser University ...
Plants & Animals
May 20, 2026
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A new study by University of Victoria (UVic) and Pacific Salmon Foundation (PSF) scientists has uncovered what adult Chinook salmon in the Salish Sea are eating—and revealed diet can differ according to region. The study, ...
Plants & Animals
May 12, 2026
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As we transition into spring, wildfires are on the minds of many Canadians. In fact, wildfires have already started in some parts of the country.
Ecology
May 11, 2026
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An experiment conducted in the state of São Paulo, Brazil, has concluded that yellow trout can grow larger than the wild strain, which is the most commonly farmed phenotype of rainbow trout (Oncorhynchus mykiss). The yellow, ...
Plants & Animals
May 6, 2026
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Salmon are becoming river "ghosts" as brutal droughts and violent floods cause unprecedented losses on their treacherous journey to the Pacific Ocean, scientists say. A study led by the University of Essex; NOAA Fisheries; ...
Plants & Animals
May 3, 2026
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A new study led by scientists from the Wildlife Conservation Society (WCS) and Woods Hole Oceanographic Institution (WHOI) reveals that endangered sei whales regularly use the New York Bight as a key spring habitat, underscoring ...
Plants & Animals
Apr 6, 2026
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Rising temperatures in a Southcentral Alaska river have led to a hungrier population of invasive northern pike, a trend that could imperil native salmon and other fish species. A University of Alaska Fairbanks-led research ...
Plants & Animals
Mar 22, 2026
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A new study from the University of British Columbia has found that artificial turf fields across Metro Vancouver leach 6PPD-quinone, a chemical known to kill coho salmon, into municipal stormwater systems—and the contamination ...
Plants & Animals
Mar 18, 2026
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