A contribution from the Global Alliance of Continuous Plankton Recorders (GACS) project, this paper by Max Campbell et al. in Ecography, tests whether food is a more important driver
of body size than temperature in marine copepods, whilst considering other drivers of the potential relationships with body size, such as oxygen levels, which have not been investigated previously for copepods. Results indicate that as the world warms, smaller copepod species are likely to emerge as ‘winners’, potentially reducing rates of ﬁsheries production and carbon sequestration.
The Global Alliance of Continuous Plankton Recorder Surveys (GACS) sampling eﬀort since September 1997. Diﬀerent coloured lines represent sampling transects of individual surveys: the North Atlantic CPR Survey (n = 54 176), the SCAR Southern Ocean CPR Survey (n = 34 005), the North Paciﬁc CPR Survey (n = 4674) and the Australian CPR Survey (n = 4975).