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Climate Change and Distribution Shifts in Marine Fishes
Allison L. Perry,1*Paula J. Low,2Jim R. Ellis,2John D. Reynolds1*
We show that the distributions of both exploited and nonexploitedNorth Sea fishes have responded markedly to recent increasesin sea temperature, with nearly two-thirds of species shiftingin mean latitude or depth or both over 25 years. For specieswith northerly or southerly range margins in the North Sea,half have shown boundary shifts with warming, and all but oneshifted northward. Species with shifting distributions havefaster life cycles and smaller body sizes than nonshifting species.Further temperature rises are likely to have profound impactson commercial fisheries through continued shifts in distributionand 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.
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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