Trans-Atlantic Study of Calanus: Analysis of historical time series data

The objective of this subtask of the Trans-Atlantic Study of Calanus (TASC) programme was to determine trends and seasonal cycles in abundance of Calanus in different regions of the NE Atlantic and examine evidence for correlation between regions, by extending the statistical time series analysis of data from the Continuous Plankton Recorder (CPR) surveys carried out for the North Sea during ICOS to include a wider area of the North Atlantic and Norwegian Sea and draw this together with an analysis of historical time series data from Icelandic, Faroese, Norwegian and Russian sources.

Supply of additional CPR data, beyond those obtained in respect of ICOS, was negotiated with the Sir Alister Hardy Foundation, UK. Long term data from sampling in Icelandic waters was in manuscript form and was collated and digitised at MRII. Similarly, access to data for Faroese waters was be negotiated.