Maurolicus muelleri is found across the Pacific and Atlantic Oceans from subpolar waters to the equator, as well as in the See more

Maurolicus muelleri has a fusiform body shape with a moderately sized, subvertical mouth. M. muelleri is countershaded to provide camouflage in the open-ocean, with a dark dorsal surface, silvered flanks and clustered … See more

Mueller's pearlside is a zooplanktivore, with exact diet composition varying geographically and seasonally. For example, Copepods are the main constituent of their diet in the Sea of Japan and in waters surr… See more

As with many mesopelagic species, Maurolicus muelleri undergoes diel vertical migration (DVM), however this behaviour is more complex and varied in M. muelleri than that descriptor usually entails. The specific nat… See more

Spawn timing in Maurolicus muelleri is regionally variable. In the Benguela system, breeding occurs year round, while in Australia spawning occurs in late winter and early spring. In Norway, spawning occurs bet… See more

At present, M. muelleri is of minor importance to fisheries, with several countries, including Russia, Iceland, and the Faroe Islands attempting to pursue it as a resource after the collapse of other fisheries, w… See more