What is it about?
How will climate change affect the fish communities of Australia's most important river system? This study combines environmental data with information about fish physiology — specifically their thermal tolerances and metabolic needs — to predict how climate change will alter the taxonomic and functional diversity of fish in the Murray-Darling Basin. By linking what fish can physiologically tolerate with what the environment will become, we generate more biologically realistic predictions than models based purely on climate correlations.
Featured Image
Why is it important?
Incorporating physiology into species distribution models is a significant methodological advance over purely statistical approaches. This study demonstrates that thermal physiology is a key determinant of fish vulnerability to climate change in the Murray-Darling Basin, and that functional diversity will be disproportionately affected. These insights are critical for managing Australian freshwater biodiversity under climate change and for designing conservation strategies that are grounded in mechanistic understanding.
Perspectives
Collaborating on this project gave me the opportunity to apply eco-physiological thinking to conservation planning, which I found deeply enriching. The Murray-Darling Basin faces enormous pressure from climate change, and I hope our physiology-based models help managers and policymakers make more informed decisions about how to protect its remarkable freshwater biodiversity.
PhD Edivando Vitor do Couto
Technische Universitat Munchen
Read the Original
This page is a summary of: Coupling environment and physiology to predict effects of climate change on the taxonomic and functional diversity of fish assemblages in the Murray-Darling Basin, Australia, PLOS One, November 2019, PLOS,
DOI: 10.1371/journal.pone.0225128.
You can read the full text:
Contributors
The following have contributed to this page
