www.elsevier.com/locate/seares Common trends in northeast Atlantic squid time series
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...
Main Authors: | , |
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Format: | Text |
Language: | English |
Published: |
2002
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.423.1439 http://www.brodgar.com/pdf/ZuurPierce.pdf |
Summary: | 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. |
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