A recent sampling from two California streams found nearly all juvenile salmon were infected with deadly parasites, and conditions are expected to worsen.

New genomic analyses reveal that piscine orthoreovirus first came to the Pacific in 1989, around the same time that salmon farms in the area started importing Atlantic salmon eggs from Europe.

Feeding the world’s insatiable appetite for wood products is sacrificing the future of a crucial ecosystem.

Stephen Raverty of the Ministry of Agriculture in Canada and Joseph Gaydos of UC Davis speak with The Scientist about their recent study assessing the causes of orca deaths.

6PPD, a tire preservative, reacts with ozone to produce a compound that the researchers say may be responsible for large die-off events.

The fast-growing fish can now be raised and sold in the US, although it’s likely to be some time before the product hits the market.

The variation may help explain why stocked salmon don’t fare as well in the ocean.

Organophosphates jeopardize dozens of species, a federal review finds.

A fish farm blamed the “exceptionally high tides” resulting from yesterday’s solar eclipse for net failure. Authorities have authorized limitless takes of the invaders.

Intensive aquaculture favors increasingly virulent forms of certain fish-infecting parasites and pathogens, studies show.

Federal regulators OK the genetically modified fish for sale as food.

AquaBounty Technologies’s fast-growing fish is the first genetically modified animal approved by the US Food and Drug Administration.

Sound risk management concerning genetically engineered food animals is critical. 

On the potential benefits and risks of genetically modified fish entering the marketplace 

An increasingly common algal growth, found in rivers the world over, is caused by changing environmental conditions, not accidental introductions.

Environment Canada allows production of genetically modified salmon eggs at commercial levels.

Genetically modified Atlantic salmon, which could soon become the first transgenic animal sold as food in the U.S., can breed with wild brown trout to produce a GM hybrid.

Fisheries scientists allege that an official wanted to abolish their department because their research contradicted the findings of other agencies.