Effects of social environment and energy efficiency on preferred swim speed in a marine generalist fish, pile perch Phanerodon vacca.

Data from our study investigating the relationships between metabolic optimal and preferred swimming speed in the context of social environment in a marine generalist species, pile perch Phanerodon vacca. Our results show that fish chose swimming speeds significantly below their metabolic optimum, but will also adjust their speed to swim with a conspecific.