Common trends in Northeast Atlantic squid time series

A. F. Zuur, Graham John Pierce

Research output: Contribution to journalArticlepeer-review

122 Citations (Scopus)


In this paper, dynamic factor analysis is used to estimate common trends in time series of squid catch per unit effort in Scottish (UK) waters. Results indicated that time series of most months were related to sea surface temperature measured at Millport (UK) and a few series were related to the NAO index. The DFA methodology identified three common trends in the squid time series not revealed by traditional approaches, which suggest a possible shift in relative abundance of summer- and winter-spawning populations. Crown Copyright (C) 2004 Published by Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)57-72
Number of pages15
JournalJournal of Sea Research
Issue number1
Early online date9 Apr 2004
Publication statusPublished - Jun 2004


  • squid time series
  • common trends
  • dynamic factor analysis
  • sea surface temperature
  • NAO index
  • Loligo forbesi
  • Scottish waters
  • fisheries catches
  • temperature
  • population
  • recruitment
  • cephalopoda
  • regression
  • abundance


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