These two types of mussels, though both belonging to the bivalve mollusk family, exhibit notable distinctions. One, commonly found in the Atlantic and Pacific oceans, possesses a shell that is typically dark blue to black. The other, predominantly harvested in the waters of New Zealand, displays a vibrant green lip around the edges of its shell, along with a brownish-green body.
Understanding these variations is crucial for both culinary and ecological perspectives. The nutritional profiles differ slightly, impacting their desirability for consumption. Furthermore, awareness helps in responsible sourcing, as cultivation practices and environmental impacts can vary significantly between the two species.