Fish scales are essential when you catch a new personal best and want to remember it for the rest of your life. Good scales are accurate, easy to use, and have great battery life for when you need ...

Fish accumulate mercury from their surroundings, so scientists often sample them to examine how levels of the toxic metal fluctuate over time. But current mercury measurement methods in fish have low ...

Aquatic researchers have long sought an easy way to determine when wild fish are under stress. Now, researchers have shown for the first time that cortisol, a key stress hormone, accumulates in fish ...