University Of Tasmania

File(s) under permanent embargo

Biological ramifications of climate-change mediated oceanic multi-stressors

journal contribution
posted on 2023-05-18, 16:40 authored by Philip BoydPhilip Boyd, Lennartz, ST, Glover, DM, Doney, SC
Climate change is altering oceanic conditions in a complex manner, and the concurrent amendment of multiple properties will modify environmental stress for primary producers. So far, global modelling studies have focused largely on how alteration of individual properties will affect marine life. Here, we use global modelling simulations in conjunction with rotated factor analysis to express model projections in terms of regional trends in concomitant changes to biologically influential multistressors. Factor analysis demonstrates that regionally distinct patterns of complex oceanic change are evident globally. Preliminary regional assessments using published evidence of phytoplankton responses to complex change reveal a wide range of future responses to interactive multi-stressors with <20-300% shifts in phytoplankton physiological rates, and many unexplored potential interactions. In a future ocean, provinces will encounter different permutations of change that will probably alter the dominance of key phytoplankton groups and modify regional productivity, ecosystem structure and biogeochemistry. Consideration of regionally distinct multi-stressor patterns can help guide laboratory and field studies as well as the interpretation of interactive multi-stressors in global models.


Publication title

Nature Climate Change








Institute for Marine and Antarctic Studies


Nature Publishing Group

Place of publication

United Kingdom

Rights statement

© 2014 Macmillan Publishers

Repository Status

  • Restricted

Socio-economic Objectives

Ecosystem adaptation to climate change