Total benthic oxygen uptake in two Arctic fjords (Spitsbergen) with different hydrological regimes

• Autorzy: Kotwicki L. , Grzelak K. , Opaliński K. , Węsławski J. M.

Identyfikatory

DOI

10.1016/j.oceano.2017.11.005

• Języki publikacji: EN

Abstrakty

EN

Benthic total oxygen uptake (TOU) was measured in two Arctic fjords (NW Spitsbergen shelf) with different hydrological regimes: Hornsund with “cold” coastal Arctic waters and Kongsfjorden with “warm” Atlantic shelf waters. TOU rates in Kongsfjorden were more than 50% higher than in Hornsund. This is presumably related to the relatively higher biomass of bacterial and faunal (meiobenthos and macrofauna) communities in Kongsfjorden as compared to Hornsund caused by the source of organic matter: Kongsfjorden is dominated by marine, Hornsund by terrigenous organic matter. We conclude that the quality of organic matter supplied to marine sediments influences the biomass of benthic organisms and the rate of oxygen consumption. Therefore the Kongsfjorden sea bed has much higher oxygen uptake and hence a greater carbon demand than Hornsund.

Słowa kluczowe

EN

sediment oxygen uptake; respiration partitioning; carbon demand; Svalbard fjord; Arctic

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2018
• Tom: No. 60 (2)
• Strony: 107--113
• Opis fizyczny: Bibliogr. 41 poz., mapy, tab., wykr.

Twórcy

autor

Kotwicki L.

• Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland

autor

Grzelak K.

• Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland
• Laboratory of Polar Biology and Oceanobiology, Faculty of Biology and Environmental Protection, University of Łódź, Łódź, Poland

autor

Opaliński K.

• Cardinal Wyszyński University, Warsaw, Poland

autor

Węsławski J. M.

• Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).