Australian Museum Study Documents 675 Fish Species in Sydney Harbour Through Historical and Citizen Science Data

Australian Museum scientists have published an updated checklist of fish species in Sydney Harbour, identifying 675 species through analysis of museum specimens dating to 1868 and citizen science observations since 2009. The research, led by Dr. Joseph DiBattista and published in Marine Pollution Bulletin, reveals a 15% increase from previous counts, with significant contributions from citizen science programs like Australasian Fishes Project and Reef Life Survey. The study examines species distribution relative to pollution gradients, noting higher concentrations of resilient fish families in western, more polluted areas. Findings highlight the impact of climate change and human activities on marine biodiversity while emphasizing the value of collaborative monitoring.