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Variation in Size a...
Variation in Size and Growth of the Great Scallop Pecten maximus along a Latitudinal Gradient
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Chauvaud, L. (författare)
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Patry, Y. (författare)
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Jolivet, A. (författare)
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Cam, E. (författare)
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Le Goff, C. (författare)
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Strand, O. (författare)
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- Charrier, Grégory, 1978 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Linnécentrum för marin evolutionsbiologi (CEMEB),Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory,Linnaeus Centre for Marine Evolutionary Biology (CEMEB)
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Thebault, J. (författare)
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Lazure, P. (författare)
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- Gotthard, Karl (författare)
- Stockholms universitet,Zoologiska institutionen
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Clavier, J. (författare)
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(creator_code:org_t)
- 2012-05-23
- 2012
- Engelska.
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Ingår i: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 7:5
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Abstract
Ämnesord
Stäng
- Understanding the relationship between growth and temperature will aid in the evaluation of thermal stress and threats to ectotherms in the context of anticipated climate changes. Most Pecten maximus scallops living at high latitudes in the northern hemisphere have a larger maximum body size than individuals further south, a common pattern among many ectotherms. We investigated differences in daily shell growth among scallop populations along the Northeast Atlantic coast from Spain to Norway. This study design allowed us to address precisely whether the asymptotic size observed along a latitudinal gradient, mainly defined by a temperature gradient, results from differences in annual or daily growth rates, or a difference in the length of the growing season. We found that low annual growth rates in northern populations are not due to low daily growth values, but to the smaller number of days available each year to achieve growth compared to the south. We documented a decrease in the annual number of growth days with age regardless of latitude. However, despite initially lower annual growth performances in terms of growing season length and growth rate, differences in asymptotic size as a function of latitude resulted from persistent annual growth performances in the north and sharp declines in the south. Our measurements of daily growth rates throughout life in a long-lived ectothermic species provide new insight into spatio-temporal variations in growth dynamics and growing season length that cannot be accounted for by classical growth models that only address asymptotic size and annual growth rate.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- life-history puzzle
- lizard sceloporus-undulatus
- body-size
- countergradient variation
- phenotypic plasticity
- geographic-variation
- adamussium-colbecki
- antarctic scallop
- intrinsic growth
- temperature
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Chauvaud, L.
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Patry, Y.
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Jolivet, A.
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Cam, E.
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Le Goff, C.
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Strand, O.
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visa fler...
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Charrier, Grégor ...
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Thebault, J.
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Lazure, P.
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Gotthard, Karl
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Clavier, J.
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NATURVETENSKAP
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Göteborgs universitet
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Stockholms universitet