Microbiological Survey in Two Arctic Fjords: Total Bacterial Number and Biomass Comparison of Hornsund and Kongsfjorden - Publikacja - MOST Wiedzy

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Microbiological Survey in Two Arctic Fjords: Total Bacterial Number and Biomass Comparison of Hornsund and Kongsfjorden

Abstrakt

Two microbiological parameters: total bacterial number (TBN) and biomass (BBM) were studied in two Arctic fjords: Hornsund and Kongsfjorden. Samples were collected from three sampling points in each fjord, from various water depth layers: from the surface to 75 m depth. Total bacterial number and biomass were examined using the DAPI staining and direct count method. The greater amount of bacteria, as well as highest bacterial biomass were observed in the colder fjord Hornsund, located on the southern part of Spitsbergen. Local TBN maximum was found at a depth of 15 m at station KG2, which corresponds to the presence of pycnocline. Better adaptation of Arctic bacteria to the low water temperatures and availability of substrates coming from the bird colonies may explain the higher TBN and BBM in Hornsund. Moreover, greater phytoplankton abundance in Hornsund may have an impact on better feeding conditions. Detected increased amounts of particulate inorganic matter also provides favourable habitat for bacterial consortia.

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Kategoria:
Aktywność konferencyjna
Typ:
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Tytuł wydania:
Impact of Climate Changes on Marine Environments strony 115 - 126
Język:
angielski
Rok wydania:
2015
Opis bibliograficzny:
Kalinowska A., Ameryk A., Jankowska K.: Microbiological Survey in Two Arctic Fjords: Total Bacterial Number and Biomass Comparison of Hornsund and Kongsfjorden// Impact of Climate Changes on Marine Environments/ ed. Tymon Zieliński, Marcin Węsławski, Karol Kuliński : Springer International Publishing, 2015, s.115-126
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/978-3-319-14283-8
Weryfikacja:
Politechnika Gdańska

wyświetlono 109 razy

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