Original Paper

Polar Biology

, Volume 28, Issue 7, pp 523-527

Temperature effects on summer growth rates in the Antarctic scallop, Adamussium colbecki

  • Olaf HeilmayerAffiliated withAlfred Wegener Institute for Polar and Marine ResearchDepartment of Biological Sciences, Florida Atlantic University Email author 
  • , Cornelia HonnenAffiliated withGymnasium Wesermünde
  • , Ute JacobAffiliated withAlfred Wegener Institute for Polar and Marine Research
  • , Mariachiara ChiantoreAffiliated withDIP.TE.RIS Dipartimento per lo Studio del Territorio e delle sue Risorse, Università di Genova, Viale Benedetto XV
  • , Riccardo Cattaneo-ViettiAffiliated withDIP.TE.RIS Dipartimento per lo Studio del Territorio e delle sue Risorse, Università di Genova, Viale Benedetto XV
  • , Thomas BreyAffiliated withAlfred Wegener Institute for Polar and Marine Research

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Abstract

Annual growth rates of Antarctic marine organisms are low compared to their relatives from warmer waters. Previous studies hypothesise that high food availability during austral spring–summer may enable Antarctic invertebrates to attain comparatively high short-term growth rates despite the low temperature. Neither a temperature-growth experiment with juvenile Adamussium colbecki (Smith 1902) nor the comparison of A. colbecki summer growth rates with an empirical scallop specific growth-to-temperature relationship could confirm this hypothesis. Hence, summer growth rates of young, immature A. colbecki are strongly affected by temperature, i.e. no “uncoupling” from temperature.

Keywords

Adamussium colbecki Antarctic scallop Growth Growth rate Temperature