* Are relatively small and manageable: Most fish are small enough to be easily lifted and placed on a scale.
* Don't move much once they're out of the water: They are generally stunned or dead when being weighed, making them easier to handle and keep still.
* Scales are readily available: Scales specifically designed for weighing fish are commonly found in fishing shops, markets, and even at home.
However, it's worth noting that weighing larger fish can be a bit more challenging, but still relatively straightforward compared to weighing other animals.