FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2507340970> ?p ?o ?g. }

• W2507340970 endingPage "127" @default.
• W2507340970 startingPage "112" @default.
• W2507340970 abstract "With climate change, the strong seasonality and tight pelagic-benthic coupling in the Arctic is expected to change in the next few decades. It is currently unclear how the benthos will be affected by changes of environmental conditions such as supplies of organic matter (OM) from the water column. In the last decade, Kongsfjorden (79°N), a high Arctic fjord in Svalbard influenced by several glaciers and Atlantic water inflow, has been a site of great interest owing to its high sensitivity to climate change, evidenced by a reduction in ice cover and an increase in melting freshwater. To investigate how spatial and seasonal changes in vertical fluxes can impact the benthic compartment of Kongsfjorden, we studied the organic matter characteristics (in terms of quantity and quality) and prokaryotic distribution in sediments from 3 stations along a transect extending from the glacier into the outer fjord in 4 different seasons (spring, summer, autumn and winter) in 2012–2013. The biochemical parameters used to describe the sedimentary organic matter were organic carbon (OC), total nitrogen, bulk stable isotope ratios, pigments (chorophyll-a and phaeopigments) and biopolymeric carbon (BPC), which is the sum of the main macromolecules, i.e. lipids, proteins and carbohydrates. Prokaryotic abundance and distribution were estimated by 4′,6-diamidino-2-phenylindole (DAPI) staining. This study identifies a well-marked quantitative gradient of biogenic compounds throughout all seasons and also highlights a discrepancy between the quantity and quality of sedimentary organic matter within the fjord. The sediments near the glacier were organic-poor (< 0.3%OC), however the high primary productivity in the water column displayed during spring was reflected in summer sediments, and exhibited higher freshness of material at the inner station compared to the outer basin (means C-chlorophyll-a/OC ~ 5 and 1.5%, respectively). However, sediments at the glacier front were depleted in BPC (~ 0.2–0.3 mg C g− 1 DW) by 4.5 and 9 times compared to sediments from the inner and outer stations. δ13C values in sedimentary organic matter of Kongsfjorden varied between − 23.8 and − 19.3‰ and reflected distinct sources of organic matter between basins. Bacterial total cell numbers in sediments of Kongsfjorden were < 2 × 108 cells ml− 1 and the prokaryotic community structure was strongly influenced by the marked environmental biogenic gradients. Overall, the spatial variability prevailed over the seasonal variability in sediments of Kongsfjorden suggesting that glacier inputs prominently control the functioning of this benthic ecosystem and its communities. Regional index terms: Norway, Svalbard, Kongsfjorden." @default.
• W2507340970 created "2016-09-16" @default.
• W2507340970 creator A5019969725 @default.
• W2507340970 creator A5022099061 @default.
• W2507340970 creator A5040075307 @default.
• W2507340970 creator A5062410291 @default.
• W2507340970 creator A5083006706 @default.
• W2507340970 date "2016-12-01" @default.
• W2507340970 modified "2023-10-17" @default.
• W2507340970 title "Glacier inputs influence organic matter composition and prokaryotic distribution in a high Arctic fjord (Kongsfjorden, Svalbard)" @default.
• W2507340970 cites W1544434947 @default.
• W2507340970 cites W1652059687 @default.
• W2507340970 cites W1942079909 @default.
• W2507340970 cites W1943471202 @default.
• W2507340970 cites W1963482117 @default.
• W2507340970 cites W1963830632 @default.
• W2507340970 cites W1965731782 @default.
• W2507340970 cites W1967767797 @default.
• W2507340970 cites W1968094723 @default.
• W2507340970 cites W1968543674 @default.
• W2507340970 cites W1968942641 @default.
• W2507340970 cites W1970808872 @default.
• W2507340970 cites W1972685766 @default.
• W2507340970 cites W1974621955 @default.
• W2507340970 cites W1975839083 @default.
• W2507340970 cites W1975852506 @default.
• W2507340970 cites W1975897772 @default.
• W2507340970 cites W1979131009 @default.
• W2507340970 cites W1979518614 @default.
• W2507340970 cites W1981497577 @default.
• W2507340970 cites W1985835475 @default.
• W2507340970 cites W1987300826 @default.
• W2507340970 cites W1987610679 @default.
• W2507340970 cites W1990251939 @default.
• W2507340970 cites W1994982199 @default.
• W2507340970 cites W1995342490 @default.
• W2507340970 cites W1995972428 @default.
• W2507340970 cites W1996902491 @default.
• W2507340970 cites W1997264935 @default.
• W2507340970 cites W1997675017 @default.
• W2507340970 cites W1997988231 @default.
• W2507340970 cites W2000967738 @default.
• W2507340970 cites W2001066365 @default.
• W2507340970 cites W2002599424 @default.
• W2507340970 cites W2002952796 @default.
• W2507340970 cites W2003186440 @default.
• W2507340970 cites W2006961024 @default.
• W2507340970 cites W2007534903 @default.
• W2507340970 cites W2008290141 @default.
• W2507340970 cites W2009537923 @default.
• W2507340970 cites W2009543048 @default.
• W2507340970 cites W2011079303 @default.
• W2507340970 cites W2012374179 @default.
• W2507340970 cites W2012900624 @default.
• W2507340970 cites W2014302440 @default.
• W2507340970 cites W2014412376 @default.
• W2507340970 cites W2016646006 @default.
• W2507340970 cites W2016978864 @default.
• W2507340970 cites W2018001776 @default.
• W2507340970 cites W2019120509 @default.
• W2507340970 cites W2019989289 @default.
• W2507340970 cites W2023370940 @default.
• W2507340970 cites W2024659620 @default.
• W2507340970 cites W2026190756 @default.
• W2507340970 cites W2026874696 @default.
• W2507340970 cites W2027494351 @default.
• W2507340970 cites W2028071465 @default.
• W2507340970 cites W2031732526 @default.
• W2507340970 cites W2034098245 @default.
• W2507340970 cites W2037369241 @default.
• W2507340970 cites W2038465645 @default.
• W2507340970 cites W2039249176 @default.
• W2507340970 cites W2041373114 @default.
• W2507340970 cites W2042209730 @default.
• W2507340970 cites W2043671557 @default.
• W2507340970 cites W2044610778 @default.
• W2507340970 cites W2050342188 @default.
• W2507340970 cites W2053876649 @default.
• W2507340970 cites W2055469035 @default.
• W2507340970 cites W2057843356 @default.
• W2507340970 cites W2059641295 @default.
• W2507340970 cites W2060287183 @default.
• W2507340970 cites W2061716142 @default.
• W2507340970 cites W2062602037 @default.
• W2507340970 cites W2063269541 @default.
• W2507340970 cites W2067159129 @default.
• W2507340970 cites W2069111267 @default.
• W2507340970 cites W2070796597 @default.
• W2507340970 cites W2073415665 @default.
• W2507340970 cites W2074484803 @default.
• W2507340970 cites W2074751702 @default.
• W2507340970 cites W2076248371 @default.
• W2507340970 cites W2080375177 @default.
• W2507340970 cites W2080668639 @default.
• W2507340970 cites W2083794050 @default.
• W2507340970 cites W2084691441 @default.
• W2507340970 cites W2086477516 @default.
• W2507340970 cites W2091699432 @default.

• next