Comparison of bacterial production in the water column between two Arctic fjords, Hornsund and Kongsfjorden (West Spitsbergen)

• Autorzy: Ameryk A. , Jankowska K.M. , Kalinowska A. , Weslawski J.M.
• Języki publikacji: EN

Abstrakty

EN

Bacterial production and the accompanying environmental factors were measured in the water columns of two Arctic fjords during the cruise in July and August 2013. Water samples were collected at six stations located in the central part of Hornsund and Kongsfjorden. In Hornsund, where average water temperatures were 1.25-fold lower than in Kongsfjorden, the bacterial production was twice as high (0.116 ± 0.102 vs 0.05 ± 0.03 mg C m−3 h−1). Statistical analysis indicated that chlorophyll a concentration itself was not a significant factor that affected bacterial production, in contrast to its decomposition product, pheophytin, originating from senescent algal cells or herbivorous activity of zooplankton. Single and multiple regression analysis revealed that water temperature, dissolved organic carbon (DOC), and pheophytin concentration were the main factors affecting bacterial production in both fjords.

Słowa kluczowe

EN

bacterial production; environmental factor; water column; chlorophyll a; water temperature; bacterial biomass; dissolved organic carbon; dissolved organic matter; Arctic fjord; Spitsbergen; Kongsfjorden; Hornsund

• Wydawca: -
• Czasopismo: Oceanologia
• Rocznik: 2017
• Tom: 59
• Numer: 4
• Opis fizyczny: p.496-507,fig.,ref.

Twórcy

autor

Ameryk A.

• National Marine Fisheries Research Institute, Gdynia, Poland

autor

Jankowska K.M.

• Gdansk University of Technology, Narutowicza 11/12 Street, 80-233 Gdansk, Poland

autor

Kalinowska A.

• Gdansk University of Technology, Gdansk, Poland

autor

Weslawski J.M.

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

Identyfikatory

DOI

10.1016/j.oceano.2017.06.001