What is interesting about cross-finned fish?

Quillfish are silvery marine fish that form huge schools in Western European waters. They contribute to the global fishing industry. They are smaller than Atlantic herring, reach a length of less than 15 cm and are therefore especially valuable for canning as sardines. They are eaten fresh, canned in oil, pickled, or smoked. Offering a wide range of health benefits to those who eat them, cross-finned fish are a natural, low-calorie food source. Although they are small, their abundance makes them valuable to us and the inhabitants of the ocean.