Alexandra Grutter

Dr. Alexandra Grutter serves as an Honorary Senior Fellow in the School of the Environment within the Faculty of Science at the University of Queensland. She earned a Bachelor of Arts and a Doctor of Philosophy from James Cook University. Her research specializes in coral reef ecology and marine parasitology, incorporating evolutionary biology, molecular biology, parasitology, and animal behaviour. Grutter generates hypotheses from field observations and tests them using field and laboratory experiments, primarily at Lizard Island and Heron Island on the Great Barrier Reef. She is recognized as a media expert on cleaner fish biology, effects of parasites on fish behaviour, fish behaviour, fish biology, marine parasite ecology, and parasites' effects on fish behaviour.

Grutter's career at the University of Queensland has focused on cleaning symbioses, particularly the interactions between cleaner wrasse such as Labroides dimidiatus, gnathiid isopod ectoparasites, and client reef fishes. Her studies examine parasite removal rates, impacts on fish recruitment and settlement, indirect effects on grazing and benthic community structure, and the potential for cleaner fish to act as super-spreaders of parasites. Key publications include 'Parental care reduces parasite-induced mortality in a coral reef fish' (2024, Proceedings of the Royal Society B: Biological Sciences), 'Cleaner fish are potential super-spreaders' (2022, Journal of Experimental Biology), 'Indirect effects of cleaner fish Labroides dimidiatus on fish grazing per reef area and benthic community structure' (2022, Marine Biology), 'Integrating movement data and behavioural observations to assess the spatial functional role of sympatric cleaner fishes' (2025, Animal Behaviour), and seminal works such as 'Cleaner fish really do clean' (1999) and 'Image scoring and cooperation in a cleaner fish mutualism' (2006). She has received the UQ Foundation Research Excellence Award (2004) and an ARC Australian Postdoctoral Research Fellowship (1997-2000). Grutter has secured extensive funding through numerous Australian Research Council Discovery Projects, including 'What happens to coral reefs without cleaner fish?' (2012-2015), 'Do cleaner-fish control infections of parasitic protozoa transmitted by gnathiid isopods and leeches?' (2005-2007), and 'The cleaner fish-client fish symbiosis: a model multispecies mutualism' (2001-2003), among others. Her contributions elucidate the ecological importance of cleaning mutualisms and parasite dynamics in coral reef ecosystems.

Professional Email: a.grutter@uq.edu.au