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Originally published in Science Express on 12 May 2005
Science 24 June 2005:
Vol. 308. no. 5730, pp. 1912 - 1915
DOI: 10.1126/science.1111322
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Reports

Climate Change and Distribution Shifts in Marine Fishes

Allison L. Perry,1* Paula J. Low,2{dagger} Jim R. Ellis,2 John D. Reynolds1*

We show that the distributions of both exploited and nonexploited North Sea fishes have responded markedly to recent increases in sea temperature, with nearly two-thirds of species shifting in mean latitude or depth or both over 25 years. For species with northerly or southerly range margins in the North Sea, half have shown boundary shifts with warming, and all but one shifted northward. Species with shifting distributions have faster life cycles and smaller body sizes than nonshifting species. Further temperature rises are likely to have profound impacts on commercial fisheries through continued shifts in distribution and alterations in community interactions.

1 Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
2 Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Lowestoft NR33 0HT, UK.

{dagger} Present address: University Marine Biological Station Millport, Isle of Cumbrae KA28 0EF, UK.

* To whom correspondence should be addressed. E-mail: a.perry{at}uea.ac.uk (A.L.P.); reynolds{at}uea.ac.uk (J.D.R.).

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Science. ISSN 0036-8075 (print), 1095-9203 (online)