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Spatial variation in growth, maturation schedules and reproductive investment of female sole Solea solea in the Northeast Atlantic ArchiMer
Mollet, Fabian M.; Engelhard, Georg; Vainikka, Anssi; Laugen, Ane; Rijnsdorp, Adriaan D.; Ernande, Bruno.
Latitudinal variation in life-history traits is often explained by phenotypically plastic responses or local adaptations to different thermal regimes. We compared growth, maturation schedules and reproductive investment of female sole Solea solea between 8 populations, covering much of the species' distribution in northern Europe, with respect to thermal gradients. An energy allocation model was fitted to size–age data, and probabilistic maturation reaction norms were estimated from size–age–maturity data. We found that northern populations from colder environments had higher rates of energy acquisition and reproductive investment, an intrinsic tendency to mature earlier, and had smaller asymptotic sizes than southern populations from warmer environments....
Tipo: Text Palavras-chave: Countergradient variation; Phenotypic plasticity; Growth; Maturation reaction norm; Temperature; Mortality-induced evolution.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00124/23523/21360.pdf
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Variation in life-history traits of European anchovy along a latitudinal gradient: a bioenergetics modelling approach ArchiMer
Huret, Martin; Tsiaras, K; Daewel, U; Skogen, Md; Gatti, Paul; Petitgas, Pierre; Somarakis, S.
Anchovy Engraulis encrasicolus distribution in European waters spans from the Mediterranean Sea to the North Sea, and is expected to expand further north with global warming. Observations from the eastern Mediterranean (North Aegean Sea), the Bay of Biscay and the North Sea reveal latitudinal differences in growth, maximum size, fecundity and timing of reproduction. We set up a mechanistic framework combining a bioenergetics model with regional physical-biogeochemical models providing temperature and zooplankton biomass to investigate the underlying mechanisms of variation in these traits. The bioenergetics model, based on the Dynamic Energy Budget theory and initially calibrated in the Bay of Biscay, was used to simulate growth and reproduction patterns....
Tipo: Text Palavras-chave: Engraulis encrasicolus; Countergradient variation; Growth; Reproduction; Dynamic Energy Budget theory; Bay of Biscay; Aegean Sea; North Sea.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00504/61564/65489.pdf
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