More than half of all pinniped species have been documented to be entangled in marine debris, which can eventually lead to death if not removed. Most entanglements involve pups and juveniles, yet few studies have assessed the effect that entanglements may have on the growth and survival of these age classes. We investigated the impacts of entanglement on individual health and behaviour through comparisons of body condition, physiological markers of stress, and movement ecology in cohorts of entangled (n = 14) and unaffected (n = 14) Australian fur seals (Arctocephalus pusillus doriferus) from Seal Rocks, Victoria, Australia. From each seal, we collected morphometrics as well as blood and fur to compare levels of acute phase proteins, fur corticosterone, and haematological markers of stress. Entanglements were then removed in full. Following release, we monitored the behaviour of both cohorts of seals (previously entangled and unaffected) using satellite tags equipped with an accelerometer, time-depth recorder, and GPS to determine if there were latent effects of entanglement on behaviour, energy expenditure, and foraging capability. Here we present preliminary results and discuss their implications for the management and conservation of fur seals and other marine mammals.