A global study found dangerously low levels of dissolved oxygen in rivers around the world. The true prevalence of hypoxia is probably even higher.
fish
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In New Zealand, Fish Are Helping Scientists Find Gold
Enormous amounts of gold lie buried beneath the rubble of New Zealand’s mountains, and scientists are using freshwater fish genetics to find it.
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Tiny Creatures May Play a Difficult-to-Detect Role in Ocean Mixing
As an idea that began as a joke, critter-driven ocean mixing has long been controversial. Now scientists have caught spawning anchovies causing turbulence and stirring the sea.
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Ancient Fish Thrived During a Period of Rapid Global Warming
Teeth and scales preserved in marine sediments suggest that fish thrived during one of Earth’s fastest-warming periods.
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Sinking Fish May Fast-Track Mercury Pollution to the Deep Sea
Isotopic analysis indicates that mercury found in deep-sea organisms may have an origin in carrion from near the surface.
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Los Costos Ecológicos de Remover las Plataformas Petroleras Mar Adentro en California
Las plataformas de perforación de petróleo- y gas-mar adentro son hábitats ricos para peces. Eliminarlas por completo resultaría en una pérdida del 95% de biomasa de peces, revela una nueva investigación.
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Internal Compass Guides Salmon’s Incredible Journey
New study finds evidence that magnetite particles play a role in fish navigation.
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The Ecological Costs of Removing California’s Offshore Oil Rigs
Offshore oil- and gas-drilling platforms are rich habitats for fish, and removing them completely would result in a loss of over 95% of fish biomass, new research has revealed.
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Oil-Exposed Mahi-Mahi More Likely to Lose Oil-Avoidance Behavior
Contact with oil may make it harder for the fish to avoid additional exposure, creating a vicious cycle following offshore oil spills.
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Remote Landslide Puts Fraser River Salmon on Shaky Ground
An alliance of First Nations, provincial, and federal leaders worked with scientists, engineers, and emergency responders to rescue critical salmon stocks in western Canada.